DOCUMENT AND ENTITY INFORMATION (USD $)	12 Months Ended
DOCUMENT AND ENTITY INFORMATION (USD $)	Oct. 31, 2015	Dec. 15, 2015	Apr. 30, 2015
Document Information [Line Items]
Document Fiscal Period Focus	FY
Document Period End Date	Oct. 31, 2015
Document Fiscal Year Focus	2015
Amendment Flag	false
Entity Well-Known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float			$ 3,069,162,000
Document Type	10-K
Entity Information [Line Items]
Entity Registrant Name	HEICO CORPORATION
Entity Address, Address Line One	3000 Taft Street, Hollywood, Florida
Entity Address, State or Province	Florida
Entity Address, Postal Zip Code	33021
Entity Central Index Key	0000046619
Entity Tax Identification Number	650341002
Current Fiscal Year End Date	--10-31
Entity Filer Category	Large Accelerated Filer
Trading Symbol	hei
Entity Common Stock, Shares Outstanding		26,905,966
Entity Listing, Par Value Per Share	$ 0.01
Common Class A [Member]
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		39,966,753
Entity Listing, Par Value Per Share	$ 0.01

CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Oct. 31, 2015	Oct. 31, 2014
Current assets:
Cash and cash equivalents	$ 33,603	$ 20,229
Accounts receivable, net	181,593	149,669
Inventories, net	243,517	218,042
Prepaid expenses and other current assets	9,369	8,868
Deferred income taxes	35,530	34,485
Total current assets	503,612	431,293
Property, plant and equipment, net	105,670	93,865
Goodwill	766,639	686,271
Intangible assets, net	272,593	200,810
Deferred income taxes	847	1,063
Other assets	87,026	75,912
Total assets	1,736,387	1,489,214
Current liabilities:
Current maturities of long-term debt	357	418
Trade accounts payable	64,682	57,157
Accrued expenses and other current liabilities	100,155	92,578
Income taxes payable	3,193	2,067
Total current liabilities	168,387	152,220
Long-term debt, net of current maturities	367,241	328,691
Deferred income taxes	110,588	111,429
Other long-term liabilities	105,618	82,289
Total liabilities	751,834	674,629
Commitments and contingencies
Redeemable noncontrolling interests	91,282	39,966
Shareholders' equity:
Common Stock	269	268
Capital in excess of par value	286,220	269,351
Deferred compensation obligation	1,783	1,138
HEICO stock held by irrevocable trust	(1,783)	(1,138)
Accumulated other comprehensive (loss) income	(25,080)	(8,289)
Retained earnings	548,054	437,757
Total HEICO shareholders' equity	809,863	699,484
Noncontrolling interests	83,408	75,135
Total shareholders' equity	893,271	774,619
Total liabilities and equity	1,736,387	1,489,214
Common Class A [Member]
Shareholders' equity:
Common Stock	$ 400	$ 397

CONSOLIDATED BALANCE SHEETS [PARENTHETICAL] (USD $) In Thousands, except Per Share data, unless otherwise specified	Oct. 31, 2015	Oct. 31, 2014
Common stock, par value (in dollar per share)	$ 0.01	$ 0.01
Common stock, shares authorized	75,000	75,000
Common stock, shares issued	26,906	26,847
Common stock, shares outstanding	26,906	26,847
Common Class A [Member]
Common stock, par value (in dollar per share)	$ 0.01	$ 0.01
Common stock, shares authorized	75,000	75,000
Common stock, shares issued	39,967	39,699
Common stock, shares outstanding	39,967	39,699

CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Net sales	$ 1,188,648	$ 1,132,311	$ 1,008,757
Operating costs and expenses:
Cost of sales	754,469	733,999	637,576
Selling, general and administrative expenses	204,523	194,924	187,591
Total operating costs and expenses	958,992	928,923	825,167
Operating income	229,656	203,388	183,590
Interest expense	(4,626)	(5,441)	(3,717)
Other income	(66)	625	888
Income before taxes and noncontrolling interests	224,964	198,572	180,761
Income tax expense	71,400	59,800	56,200
Net income from consolidated operations	153,564	138,772	124,561
Less: Net income attributable to noncontrolling interests	20,200	17,479	22,165
Net income attributable to HEICO	$ 133,364	$ 121,293	$ 102,396
Net income per share attributable to HEICO shareholders (Note 13):
Basic (in dollars per share)	$ 2.00	$ 1.82	$ 1.54
Diluted (in dollars per share)	$ 1.97	$ 1.80	$ 1.53
Weighted average number of common shares outstanding:
Basic (in shares)	66,740	66,463	66,298
Diluted (in shares)	67,811	67,453	66,982

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Net income from consolidated operations	$ 153,564	$ 138,772	$ 124,561
Other comprehensive (loss) income:
Foreign currency translation adjustments	(16,880)	(7,882)	3,128
Unrealized (loss) gain on defined benefit pension plan, net of tax	(771)	(551)	590
Total other comprehensive (loss) income	(17,651)	(8,433)	3,718
Comprehensive income from consolidated operations	135,913	130,339	128,279
Less: Net income attributable to noncontrolling interests	20,200	17,479	22,165
Less: Foreign currency translation adjustments attributable to noncontrolling interests	(860)	0	0
Comprehensive income attributable to noncontrolling interests	19,340	17,479	22,165
Comprehensive income attributable to HEICO	$ 116,573	$ 112,860	$ 106,114

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $) In Thousands, unless otherwise specified	Total	Redeemable Noncontrolling Interests [Member]	Common Stock [Member]	Common Stock [Member] Common Class A [Member]	Capital in Excess of Par Value [Member]	Deferred Compensation Obligation [Member]	HEICO Stock Held By Irrevocable Trust [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Retained Earnings [Member]	Noncontrolling Interest [Member]	Total Shareholders Equity [Member]
Redeemable noncontrolling interests at Oct. 31, 2012		$ 67,166
Balances at Oct. 31, 2012			213	315	244,632	823	(823)	(3,572)	375,085	103,086	719,759
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest	22,165	8,386								13,779
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	106,114							3,718	102,396
Comprehensive Income (Loss)	128,279										119,893
Cash dividends	(116,600)								(120,361)		(120,361)
Five-for-four common stock split			54	79
Five-for-four common stock split					(133)				17		17
Issuance of common stock to HEICO Savings and Investment Plan					2,985						2,985
Share-based compensation expense					5,117						5,117
Proceeds from stock option exercises			1	2	460						463
Tax benefit from stock option exercises					5,191						5,191
Redemptions of common stock related to stock option exercises	(2,364)				(2,364)						(2,364)
Distributions to noncontrolling interests		(7,579)
Adjustments to redemption amount of redeemable noncontrolling interests		7,454							(7,454)		(7,454)
Deferred Compensation Obligation						315
Stock Held During Period Value Deferred Compensation Obligation							(315)
Other					1			(2)		24	23
Increase (Decrease) in Temporary Equity [Roll Forward]
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest	22,165	8,386								13,779
Distributions to noncontrolling interests		(7,579)
Acquisitions of noncontrolling interests		(16,610)
Adjustments to redemption amount of redeemable noncontrolling interests		7,454							(7,454)		(7,454)
Temporary Equity, Other Changes		401
Redeemable noncontrolling interests at Oct. 31, 2013		59,218
Balances at Oct. 31, 2013			268	396	255,889	1,138	(1,138)	144	349,649	116,889	723,235
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest	17,479	5,313								12,166
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	112,860							(8,433)	121,293
Comprehensive Income (Loss)	130,339										125,026
Cash dividends	(27,200)								(31,215)		(31,215)
Issuance of common stock to HEICO Savings and Investment Plan					5,504						5,504
Stock Granted, Value, Share-based Compensation, Net of Forfeitures				1
Share-based compensation expense					7,425						7,426
Proceeds from stock option exercises					708						708
Tax benefit from stock option exercises					93						93
Redemptions of common stock related to stock option exercises	(273)				(273)						(273)
Distributions to noncontrolling interests		(5,908)								(73,304)	(73,304)
Reclassification of redeemable noncontrolling interests to noncontrolling interests		19,383								19,383	19,383
Adjustments to redemption amount of redeemable noncontrolling interests		1,969							(1,969)		(1,969)
Other					5				(1)	1	5
Increase (Decrease) in Temporary Equity [Roll Forward]
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest	17,479	5,313								12,166
Distributions to noncontrolling interests		(5,908)								(73,304)	(73,304)
Acquisitions of noncontrolling interests		(1,243)
Reclassification of redeemable noncontrolling interests to noncontrolling interests		19,383								19,383	19,383
Adjustments to redemption amount of redeemable noncontrolling interests		1,969							(1,969)		(1,969)
Redeemable noncontrolling interests at Oct. 31, 2014	39,966	39,966
Balances at Oct. 31, 2014	774,619		268	397	269,351	1,138	(1,138)	(8,289)	437,757	75,135	774,619
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest	19,340	6,534								12,806
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	116,573							(16,791)	133,364
Comprehensive Income (Loss)	135,913										129,379
Cash dividends									(9,343)		(9,343)
Issuance of common stock to HEICO Savings and Investment Plan			1	1	5,752						5,754
Share-based compensation expense					6,048						6,048
Proceeds from stock option exercises				2	3,671						3,673
Tax benefit from stock option exercises					1,402						1,402
Redemptions of common stock related to stock option exercises	(5)				(5)						(5)
Distributions to noncontrolling interests		(5,166)								(4,533)	(4,533)
Adjustments to redemption amount of redeemable noncontrolling interests		13,724							(13,724)		(13,724)
Deferred Compensation Obligation						645
Stock Held During Period Value Deferred Compensation Obligation							(645)
Other					1						1
Increase (Decrease) in Temporary Equity [Roll Forward]
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest	19,340	6,534								12,806
Distributions to noncontrolling interests		(5,166)								(4,533)	(4,533)
Adjustments to redemption amount of redeemable noncontrolling interests		13,724							(13,724)		(13,724)
Noncontrolling interests assumed related to acquisition		36,224
Redeemable noncontrolling interests at Oct. 31, 2015	91,282	91,282
Balances at Oct. 31, 2015	$ 893,271		$ 269	$ 400	$ 286,220	$ 1,783	$ (1,783)	$ (25,080)	$ 548,054	$ 83,408	$ 893,271

CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Operating Activities:
Net income from consolidated operations	$ 153,564	$ 138,772	$ 124,561
Adjustments to reconcile net income from consolidated operations to net cash provided by operating activities:
Depreciation and amortization	47,907	47,757	36,790
Impairment of intangible assets	0	15,000	0
Share-based compensation expense	6,048	6,426	5,117
Employer contributions to HEICO Savings and Investment Plan	6,125	6,302	2,985
Deferred income tax benefit	(7,080)	(16,745)	(5,785)
Tax benefit from stock option exercises	1,402	93	5,191
Excess tax benefit from stock option exercises	(1,402)	(93)	(5,126)
Accrued contingent consideration	293	(28,126)	(1,640)
Foreign Currency Transaction Gain, before Tax	(3,704)	0	0
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	(22,572)	6,999	(16,585)
Inventories	(10,187)	126	(14,877)
Prepaid expenses and other current assets	1,433	8,033	(4,918)
Trade accounts payable	3,169	2,511	(23)
Accrued expenses and other current liabilities	(883)	(3,090)	12,766
Income taxes payable	373	1,462	(7,273)
Other	(1,623)	5,262	653
Net cash provided by operating activities	172,863	190,689	131,836
Investing Activities:
Acquisitions, net of cash acquired	(166,784)	(8,737)	(222,638)
Capital expenditures	(18,249)	(16,410)	(18,328)
Other	(973)	(40)	(342)
Net cash used in investing activities	(186,006)	(25,187)	(241,308)
Financing Activities:
Borrowings on revolving credit facility	173,696	112,000	372,000
Payments on revolving credit facility	(132,000)	(159,000)	(126,000)
Distributions to noncontrolling interests	(9,699)	(79,212)	(7,579)
Cash dividends paid	(9,343)	(31,215)	(120,361)
Acquisitions of noncontrolling interests	0	(1,243)	(16,610)
Redemptions of common stock related to stock option exercises	(5)	(273)	(2,364)
Proceeds from stock option exercises	3,673	708	463
Excess tax benefit from stock option exercises	1,402	93	5,126
Revolving credit facility issuance costs	0	(767)	(570)
Payment of contingent consideration	0	0	(601)
Other	(388)	(1,206)	(296)
Net cash (used in) provided by financing activities	27,336	(160,115)	103,208
Effect of exchange rate changes on cash	(819)	(657)	312
Net increase (decrease) in cash and cash equivalents	13,374	4,730	(5,952)
Cash and cash equivalents at beginning of year	20,229	15,499	21,451
Cash and cash equivalents at end of year	$ 33,603	$ 20,229	$ 15,499

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

12 Months Ended

Oct. 31, 2015

Summary Of Significant Accounting Policies (Policies) [Abstract]

Significant Accounting Policies [Text Block]

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Nature of Business

HEICO Corporation, through its principal subsidiaries consisting of HEICO Aerospace Holdings Corp. (“HEICO Aerospace”), HEICO Flight Support Corp. and HEICO Electronic Technologies Corp. (“HEICO Electronic”) and their respective subsidiaries (collectively, the “Company”), is principally engaged in the design, manufacture and sale of aerospace, defense and electronic related products and services throughout the United States ("U.S.") and internationally. The Company’s customer base is primarily the aviation, defense, space, medical, telecommunications and electronics industries.

Basis of Presentation

The Company has two operating segments: the Flight Support Group (“FSG”), consisting of HEICO Aerospace and HEICO Flight Support Corp. and their respective subsidiaries; and the Electronic Technologies Group (“ETG”), consisting of HEICO Electronic and its subsidiaries.

The consolidated financial statements include the financial accounts of HEICO Corporation and its subsidiaries, all of which are wholly owned except for HEICO Aerospace, which is 20% owned by Lufthansa Technik AG ("LHT"), the technical services subsidiary of Lufthansa German Airlines. In addition, HEICO Aerospace consolidates two subsidiaries which are 80.1% and 82.3% owned, respectively, and a joint venture, which is 84% owned. Also, HEICO Flight Support Corp. consolidates two subsidiaries which are 80.0% and 84% owned, respectively, and four subsidiaries that are each 80.1% owned. Furthermore, HEICO Electronic consolidates four subsidiaries, which are 80.1%, 80.1%, 82.5%, and 95.9% owned, respectively, and a wholly owned subsidiary of HEICO Electronic consolidates a subsidiary which is 78% owned. See Note 11, Redeemable Noncontrolling Interests. All intercompany balances and transactions are eliminated.

Use of Estimates and Assumptions

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates.

Cash and Cash Equivalents

For purposes of the consolidated financial statements, the Company considers all highly liquid investments such as U.S. Treasury bills and money market funds with an original maturity of three months or less at the time of purchase to be cash equivalents.

Accounts Receivable

Accounts receivable consist of amounts billed and currently due from customers and unbilled costs and estimated earnings related to revenue from certain fixed price contracts recognized on the percentage-of-completion method that have been recognized for accounting purposes, but not yet billed to customers. The valuation of accounts receivable requires that the Company set up an allowance for estimated uncollectible accounts and record a corresponding charge to bad debt expense. The Company estimates uncollectible receivables based on such factors as its prior experience, its appraisal of a customer’s ability to pay, age of receivables outstanding and economic conditions within and outside of the aviation, defense, space, medical, telecommunications and electronics industries.

Concentrations of Credit Risk

Financial instruments that potentially subject the Company to concentrations of credit risk consist principally of temporary cash investments and trade accounts receivable. The Company places its temporary cash investments with high credit quality financial institutions and limits the amount of credit exposure to any one financial institution. Concentrations of credit risk with respect to trade receivables are limited due to the large number of customers comprising the Company’s customer base and their dispersion across many different geographical regions. The Company performs ongoing credit evaluations of its customers, but does not generally require collateral to support customer receivables.

Inventory

Inventory is stated at the lower of cost or market, with cost being determined on the first-in, first-out or the average cost basis. Losses, if any, are recognized fully in the period when identified.

The Company periodically evaluates the carrying value of inventory, giving consideration to factors such as its physical condition, sales patterns and expected future demand in order to estimate the amount necessary to write down any slow moving, obsolete or damaged inventory. These estimates could vary significantly from actual amounts based upon future economic conditions, customer inventory levels or competitive factors that were not foreseen or did not exist when the estimated write-downs were made. In accordance with industry practice, all inventories are classified as a current asset including portions with long production cycles, some of which may not be realized within one year.

Property, Plant and Equipment

Property, plant and equipment is recorded at cost. Depreciation and amortization is generally provided on the straight-line method over the estimated useful lives of the various assets. The Company’s property, plant and equipment is depreciated over the following estimated useful lives:

The costs of major additions and improvements are capitalized. Leasehold improvements are amortized over the shorter of the leasehold improvement’s useful life or the lease term. Repairs and maintenance costs are expensed as incurred. Upon an asset's disposition, its cost and related accumulated depreciation are removed from the financial accounts and any resulting gain or loss is reflected within earnings.

Capital Leases

Assets acquired under capital leases are recorded at the lower of the asset's fair value or the present value of the future minimum lease payments, excluding any portion of the lease payments representing executory costs. The discount rate used in determining the present value of the minimum lease payments is the lower of the rate implicit in the lease or the Company's incremental borrowing rate. Assets under capital leases are included in property, plant and equipment and are depreciated over the shorter of the lease term or the useful life of the leased asset. Lease payments under capital leases are recognized as a reduction of the capital lease obligation and as interest expense.

Business Combinations

The Company allocates the purchase price of acquired entities to the underlying tangible and identifiable intangible assets acquired and liabilities and any noncontrolling interests assumed based on their estimated fair values, with any excess recorded as goodwill. The operating results of acquired businesses are included in the Company’s results of operations beginning as of their effective acquisition dates. Acquisition costs are generally expensed as incurred and were not material in fiscal 2015, 2014 or 2013.

For contingent consideration arrangements, a liability is recognized at fair value as of the acquisition date with subsequent fair value adjustments recorded in operations. Information regarding additional contingent purchase consideration may be found in Note 2, Acquisitions, and Note 7, Fair Value Measurements.

Goodwill and Other Intangible Assets

The Company tests goodwill for impairment annually as of October 31, or more frequently if events or changes in circumstances indicate that the carrying amount of goodwill may not be fully recoverable. In evaluating the recoverability of goodwill, the Company compares the fair value of each of its reporting units to its carrying value to determine potential impairment. If the carrying value of a reporting unit exceeds its fair value, the implied fair value of that reporting unit’s goodwill is to be calculated and an impairment loss is recognized in the amount by which the carrying value of the reporting unit’s goodwill exceeds its implied fair value, if any. The fair values of the Company's reporting units are determined by using a weighted average of a market approach and an income approach. Under the market approach, fair values are estimated using published market multiples for comparable companies. The Company calculates fair values under the income approach by taking estimated future cash flows that are based on internal projections and other assumptions deemed reasonable by management and discounting them using an estimated weighted average cost of capital.

The Company’s intangible assets not subject to amortization consist principally of its trade names. The Company’s intangible assets subject to amortization are amortized on the straight-line method (except for certain customer relationships amortized on an accelerated method) over the following estimated useful lives:



Customer relationships	7	to	12	years
Intellectual property	7	to	15	years
Licenses	10	to	17	years
Non-compete agreements	2	to	7	years
Patents	5	to	20	years
Trade names	8	to	10	years

Amortization expense of intellectual property, licenses and patents is recorded as a component of cost of sales, and amortization expense of customer relationships, non-compete agreements and trade names is recorded as a component of selling, general and administrative ("SG&A") expenses in the Company’s Consolidated Statements of Operations. The Company tests each non-amortizing intangible asset for impairment annually as of October 31, or more frequently if events or changes in circumstances indicate that the asset might be impaired. To derive the fair value of its trade names, the Company utilizes an income approach, which relies upon management's assumptions of royalty rates, projected revenues and discount rates. The Company also tests each amortizing intangible asset for impairment if events or circumstances indicate that the asset might be impaired. The test consists of determining whether the carrying value of such assets will be recovered through undiscounted expected future cash flows. If the total of the undiscounted future cash flows is less than the carrying amount of those assets, the Company recognizes an impairment loss based on the excess of the carrying amount over the fair value of the assets. The determination of fair value requires management to make a number of estimates, assumptions and judgments of such factors as projected revenues and earnings and discount rates.

Investments

Investments are stated at fair value based on quoted market prices. Investments that are intended to be held for less than one year are included within prepaid expenses and other current assets in the Company’s Consolidated Balance Sheets, while those intended to be held for longer than one year are classified within other assets. Unrealized gains or losses associated with available-for-sale securities are reported net of tax within other comprehensive income or (loss) in shareholders’ equity. Unrealized gains or losses associated with trading securities are recorded as a component of other income in the Company’s Consolidated Statements of Operations.

Customer Rebates and Credits

The Company records accrued customer rebates and credits as a component of accrued expenses and other current liabilities in the Company’s Consolidated Balance Sheets. These amounts generally relate to discounts negotiated with customers as part of certain sales contracts that are usually tied to sales volume thresholds. The Company accrues customer rebates and credits as a reduction within net sales as the revenue is recognized based on the estimated level of discount rate expected to be earned by each customer over the life of the contractual rebate period (generally one year). Accrued customer rebates and credits are monitored by management and discount levels are updated at least quarterly.

Product Warranties

Product warranty liabilities are estimated at the time of shipment and recorded as a component of accrued expenses and other current liabilities in the Company’s Consolidated Balance Sheets. The amount recognized is based on historical claims experience.

Defined Benefit Pension Plan

In connection with a fiscal 2013 acquisition, the Company assumed a frozen qualified defined benefit pension plan (the "Plan"). The Plan's benefits are based on employee compensation and years of service. However, since the Plan was closed to new participants effective December 31, 2004, the accrued benefit for Plan participants was fixed as of the date of acquisition. The Company uses an actuarial valuation to determine the projected benefit obligation of the Plan and records the difference between the fair value of the Plan's assets and the projected benefit obligation as of October 31 in its Consolidated Balance Sheets. Additionally, any actuarial gain or loss that arises during a fiscal year that is not recognized as a component of net periodic pension income or expense is recorded as a component of other comprehensive income or (loss), net of tax. See Note 10, Employee Retirement Plans, for additional information and disclosures about the Plan.

Revenue Recognition

Revenue from the sale of products and the rendering of services is recognized when title and risk of loss passes to the customer, which is generally at the time of shipment. Revenue from the rendering of services represented less than 10% of consolidated net sales for all periods presented. Revenue from certain fixed price contracts for which costs can be dependably estimated is recognized on the percentage-of-completion method, measured by the percentage of costs incurred to date to estimated total costs for each contract. The percentage of the Company’s net sales recognized under the percentage-of-completion method was approximately 4%, 3% and 1% in fiscal 2015, 2014 and 2013, respectively. Contract costs include all direct material and labor costs and those indirect costs related to contract performance, such as indirect labor, supplies, tools, repairs and depreciation costs. Selling, general and administrative costs are charged to expense as incurred.

Revisions in cost estimates as contracts progress have the effect of increasing or decreasing profits in the period of revision. Provisions for estimated losses on uncompleted contracts are made in the period in which such losses are determined. Variations in actual labor performance, changes to estimated profitability, and final contract settlements may result in revisions to cost estimates and are recognized in income in the period in which the revisions are determined. Changes in estimates pertaining to percentage-of-completion contracts did not have a material effect on net income from consolidated operations in fiscal 2015, 2014 or 2013.

The asset, “costs and estimated earnings in excess of billings” on uncompleted percentage-of-completion contracts, included in accounts receivable, represents revenue recognized in excess of amounts billed. The liability, “billings in excess of costs and estimated earnings,” included in accrued expenses and other current liabilities, represents billings in excess of revenue recognized on contracts accounted for under the percentage-of-completion method. Billings are made based on the completion of certain milestones as provided for in the contracts.

For fixed price contracts in which costs cannot be dependably estimated, revenue is recognized on the completed-contract method. A contract is considered complete when all significant costs have been incurred or the item has been accepted by the customer. Progress billings and customer advances (“billings to date”) received on fixed price contracts accounted for under the completed-contract method are classified as a reduction to contracts in process (a component of inventories), if any, and any remaining amount is included in accrued expenses and other current liabilities.

Stock-Based Compensation

The Company records compensation expense associated with stock options in its Consolidated Statements of Operations based on the grant date fair value of those awards. The fair value of each stock option on the date of grant is estimated using the Black-Scholes pricing model based on certain valuation assumptions. Expected stock price volatility is based on the Company’s historical stock prices over the contractual term of the option grant and other factors. The risk-free interest rate used is based on the published U.S. Treasury yield curve in effect at the time of the option grant for instruments with a similar life. The dividend yield reflects the Company’s expected dividend yield at the date of grant. The expected option life represents the period of time that the stock options are expected to be outstanding, taking into consideration the contractual term of the option grant and employee historical exercise behavior. The Company generally recognizes stock option compensation expense ratably over the award’s vesting period.

Income Taxes

Income tax expense includes U.S. and foreign income taxes, plus a provision for U.S. taxes on undistributed earnings of foreign subsidiaries not deemed to be permanently invested. Deferred income taxes are provided on elements of income that are recognized for financial accounting purposes in periods different from periods recognized for income tax purposes. The Company’s policy is to recognize interest and penalties related to income tax matters as a component of income tax expense. Further information regarding income taxes can be found in Note 6, Income Taxes.

Redeemable Noncontrolling Interests

As further detailed in Note 11, Redeemable Noncontrolling Interests, the holders of equity interests in certain of the Company’s subsidiaries have rights (“Put Rights”) that require the Company to provide cash consideration for their equity interests (the “Redemption Amount”) at fair value or at a formula that management intended to reasonably approximate fair value based solely on a multiple of future earnings over a measurement period. The Put Rights are embedded in the shares owned by the noncontrolling interest holders and are not freestanding. The Company tracks the carrying cost of such redeemable noncontrolling interests at historical cost plus an allocation of subsidiary earnings based on ownership interest, less dividends paid to the noncontrolling interest holders. Redeemable noncontrolling interests are recorded outside of permanent equity at the higher of their carrying cost or management’s estimate of the Redemption Amount. The initial adjustment to record redeemable noncontrolling interests at the Redemption Amount results in a corresponding decrease to retained earnings. Subsequent adjustments to the Redemption Amount of redeemable noncontrolling interests may result in corresponding decreases or increases to retained earnings, provided any increases to retained earnings may only be recorded to the extent of decreases previously recorded. Adjustments to Redemption Amounts based on fair value will have no affect on net income per share attributable to HEICO shareholders whereas the portion of periodic adjustments to the carrying amount of redeemable noncontrolling interests based solely on a multiple of future earnings that reflect a redemption amount in excess of fair value will affect net income per share attributable to HEICO shareholders. Acquisitions of redeemable noncontrolling interests are treated as equity transactions.

Net Income per Share Attributable to HEICO Shareholders

Basic net income per share attributable to HEICO shareholders is computed by dividing net income attributable to HEICO by the weighted average number of common shares outstanding during the period. Diluted net income per share attributable to HEICO shareholders is computed by dividing net income attributable to HEICO by the weighted average number of common shares outstanding during the period plus potentially dilutive common shares arising from the assumed exercise of stock options, if dilutive. The dilutive impact of potentially dilutive common shares is determined by applying the treasury stock method.

Foreign Currency

All assets and liabilities of foreign subsidiaries that do not utilize the U.S. dollar as its functional currency are translated at period-end exchange rates, while revenue and expenses are translated using average exchange rates for the period. Unrealized translation gains or losses are reported as foreign currency translation adjustments through other comprehensive income or (loss) in shareholders’ equity. Transaction gains or losses related to balances denominated in a currency other than the functional currency are recorded in the Company's Consolidated Statements of Operations.

Contingencies

Losses for contingencies such as product warranties, litigation and environmental matters are recognized in income when they are probable and can be reasonably estimated. Gain contingencies are not recognized in income until they have been realized.

New Accounting Pronouncements

In March 2013, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2013-05, “Parent's Accounting for the Cumulative Translation Adjustment upon Derecognition of Certain Subsidiaries or Groups of Assets within a Foreign Entity or of an Investment in a Foreign Entity,” which clarifies the applicable guidance for the release of any cumulative translation adjustments into net earnings. ASU 2013-05 specifies that the entire amount of cumulative translation adjustments should be released into earnings when an entity ceases to have a controlling financial interest in a subsidiary or group of assets within a consolidated foreign entity and the sale or transfer results in the complete or substantially complete liquidation of the investment in the foreign entity. The Company adopted ASU 2013-05 in the first quarter of fiscal 2015, resulting in no impact on the Company's consolidated results of operations, financial position or cash flows.

In May 2014, the FASB issued ASU 2014-09, “Revenue from Contracts with Customers,” which provides a comprehensive new revenue recognition model that will supersede nearly all existing revenue recognition guidance. Under ASU 2014-09, an entity will recognize revenue when it transfers promised goods or services to a customer at an amount that reflects the consideration it expects to receive in exchange for those goods or services. The guidance also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts. In August 2015, the FASB issued ASU 2015-14 which defers the effective date of ASU 2014-09 by one year. Accordingly, ASU 2014-09 is effective for fiscal years and interim reporting periods within those years beginning after December 15, 2017, or in fiscal 2019 for HEICO. Early adoption in the year preceding the effective date is permitted. ASU 2014-09 shall be applied either retrospectively to each prior reporting period presented or retrospectively with the cumulative effect of initially applying ASU 2014-09 recognized at the date of initial application. The Company is currently evaluating which transition method it will elect and the effect the adoption of this guidance will have on its consolidated results of operations, financial position and cash flows.

In July 2015, the FASB issued ASU 2015-11, “Simplifying the Measurement of Inventory,” which requires entities to measure inventories at the lower of cost or net realizable value. Under current guidance, inventories are measured at the lower of cost or market. ASU 2015-11 must be applied prospectively and is effective for fiscal years and interim reporting periods within those years beginning after December 15, 2016, or in fiscal 2018 for HEICO. Early adoption is permitted. The Company is currently evaluating the effect, if any, the adoption of this guidance will have on its consolidated results of operations, financial position and cash flows.

In September 2015, the FASB issued ASU 2015-16, “Simplifying the Accounting for Measurement-Period Adjustments," which requires that an acquirer recognize adjustments to provisional amounts that are identified during the measurement period in the reporting period in which the adjustment amounts are determined, including any cumulative effect on earnings as a result of the change to the provisional amounts as if the accounting had been completed as of the acquisition date. The Company adopted ASU 2015-16 in the fourth quarter of fiscal 2015, resulting in no impact on the Company's consolidated results of operations, financial position or cash flows.

In November 2015, the FASB issued ASU 2015-17, “Balance Sheet Classification of Deferred Taxes," which requires that all deferred tax assets and liabilities be classified as noncurrent in the balance sheet. ASU 2015-17 may be applied either prospectively or retrospectively and is effective for fiscal years and interim reporting periods within those years beginning after December 15, 2016, or in fiscal 2018 for HEICO. Early adoption is permitted. The Company is currently evaluating which transition method it will elect. The adoption of this guidance will only effect the presentation of deferred taxes in the Company's consolidated statement of financial position.

- Definition

The entire disclosure for all significant accounting policies of the reporting entity.

+ References+ Details

ACQUISITIONS

12 Months Ended

Oct. 31, 2015

Acquisitions [Abstract]

Business Combination Disclosure [Text Block]

ACQUISITIONS

Reinhold Acquisition

On May 31, 2013, the Company, through HEICO Flight Support Corp., acquired Reinhold Industries, Inc. ("Reinhold") through the acquisition of all of the outstanding stock of Reinhold's parent company in a transaction carried out by means of a merger. The purchase price of this acquisition was paid in cash, principally using proceeds from the Company’s revolving credit facility. Reinhold is a leading manufacturer of advanced niche components and complex composite assemblies for commercial aviation, defense and space applications. This acquisition is consistent with HEICO’s practice of acquiring outstanding, niche designers and manufacturers of critical components in the aerospace and defense industries and will further enable the Company to broaden its product offerings, technologies and customer base.

The following table summarizes the total consideration for the acquisition of Reinhold (in thousands):



Cash paid		$141,014
Less: cash acquired	(8,041		)
Cash paid, net	132,973
Additional purchase consideration	1,499
Total consideration		$134,472

The following table summarizes the allocation of the total consideration for the acquisition of Reinhold to the estimated fair values of the tangible and identifiable intangible assets acquired and liabilities assumed (in thousands):



Assets acquired:
Goodwill		$76,424
Identifiable intangible assets	66,500
Inventories	10,753
Accounts receivable	8,830
Property, plant and equipment	7,994
Other assets	2,756
Total assets acquired, excluding cash	173,257

Liabilities assumed:
Deferred income taxes	25,613
Accrued expenses	6,994
Accounts payable	2,923
Defined benefit pension plan obligation, net	2,865
Other liabilities	390
Total liabilities assumed	38,785
Net assets acquired, excluding cash		$134,472

The primary items that generated the goodwill recognized were the premiums paid by the Company for the future earnings potential of Reinhold and the value of its assembled workforce that do not qualify for separate recognition. The operating results of Reinhold were included in the Company’s results of operations from the effective acquisition date. The Company’s consolidated net sales and net income attributable to HEICO for fiscal 2013 includes approximately $30.8 million and $2.8 million, respectively, from the acquisition of Reinhold.

Other Acquisitions

In August 2015, the Company, through HEICO Flight Support Corp., acquired all of the stock of Astroseal Products Mfg. Corporation (“Astroseal”). Astroseal manufactures expanded foil mesh, which is integrated into composite aerospace structures for lighting strike protection in fixed and rotary wing aircraft.

In August 2015, the Company, through HEICO Electronic, acquired 80.1% of the equity of Midwest Microwave Solutions, Inc. (“MMS”). MMS designs, manufactures and sells unique Size, Weight, Power and Cost (SWAP-C) optimized Communications and Electronic Intercept Receivers and Tuners for military and intelligence applications. The remaining 19.9% continues to be owned by certain members of MMS’ management team (see Note 11, Redeemable Noncontrolling Interests, for additional information).

In August 2015, the Company, through HEICO Flight Support Corp., acquired 80.1% of the assets and assumed certain liabilities of Aerospace & Commercial Technologies, LLC (“ACT”). ACT is a leading provider of products and services necessary to maintain up-to-date F-16 fighter aircraft operational capabilities. The remaining 19.9% continues to be owned by certain members of ACT’s management team (see Note 11, Redeemable Noncontrolling Interests, for additional information).

In May 2015, the Company, through a subsidiary of HEICO Flight Support Corp., acquired all of the stock of Thermal Energy Products, Inc. (“TEP”). TEP engineers, designs and manufactures removable/reusable insulation systems for industrial, commercial, aerospace and defense applications.

In January 2015, the Company, through HEICO Flight Support Corp., acquired 80.1% of the equity of Harter Aerospace, LLC ("Harter"). Harter is a globally recognized component and accessory maintenance, repair, and overhaul (MRO) station specializing in commercial aircraft accessories, including thrust reverse actuation systems and pneumatics, and electromechanical components. The remaining 19.9% interest continues to be owned by certain members of Harter's management team (see Note 11, Redeemable Noncontrolling Interests, for additional information).

In January 2015, the Company, through HEICO Flight Support Corp., acquired 80% of the equity of Aeroworks International Holding B.V. (“Aeroworks”). Aeroworks, which is headquartered in the Netherlands and maintains a significant portion of its production facilities in Thailand and Laos, is a manufacturer of both composite and metal parts used primarily in aircraft interior applications, including seating, galleys, lavatories, doors, and overhead bins. The remaining 20% interest continues to be owned by a certain member of Aeroworks' management team (see Note 11, Redeemable Noncontrolling Interests, for additional information). The total consideration includes an accrual representing the estimated fair value of contingent consideration that the Company may be obligated to pay should Aeroworks meet certain earnings objectives during each of the first four years following the acquisition. See Note 7, Fair Value Measurements, for additional information regarding the Company’s contingent consideration obligation.

In June 2014, the Company, through a subsidiary of HEICO Flight Support Corp., acquired certain assets and liabilities of Quest Aviation Supply, Inc. (“Quest Aviation”). Quest Aviation is a niche supplier of parts to repair thrust reversers on various aircraft engines.

In October 2013, the Company acquired, through HEICO Electronic, all of the outstanding stock of Lucix Corporation ("Lucix") in a transaction carried out by means of a merger. Lucix is a leading designer and manufacturer of high performance, high reliability microwave modules, units, and integrated sub-systems for commercial and military satellites. The total consideration included an accrual of $7.0 million as of the acquisition date representing the estimated fair value of contingent consideration the Company may have been obligated to pay had Lucix met certain earnings objectives during the last three months of the calendar year of acquisition. Additionally, the total consideration included an accrual of $13.7 million as of the acquisition date representing the estimated fair value of contingent consideration the Company may be obligated to pay should Lucix meet certain earnings objectives during the subsequent two calendar years (2014 and 2015). As of the acquisition date, the maximum amount of contingent consideration that the Company could have been required to pay was $50.0 million in aggregate. See Note 7, Fair Value Measurements, for additional information regarding the Company’s contingent consideration obligation.

During fiscal 2013, the Company, through subsidiaries of HEICO Electronic, acquired certain product lines that will supplement their existing operations. The purchase prices of these acquisitions were paid using cash provided by operating activities.

Unless otherwise noted, the purchase price of each of the above referenced other acquisitions was paid in cash principally using proceeds from the Company's revolving credit facility and is not material or significant to the Company's consolidated financial statements.

The following table summarizes the aggregate total consideration for the Company's other acquisitions (in thousands):



	Year ended October 31,
	2015			2014			2013
Cash paid		$171,829			$6,759			$91,647
Less: cash acquired	(5,062		)	—			(3,185		)
Cash paid, net	166,767			6,759			88,462
Contingent purchase consideration	21,355			—			20,654
Additional purchase consideration	(204		)	(56		)	569
Total consideration		$187,918			$6,703			$109,685

The following table summarizes the allocation of the aggregate total consideration for the Company's other acquisitions to the estimated fair values of the tangible and identifiable intangible assets acquired and liabilities and noncontrolling interests assumed (in thousands):



	Year ended October 31,
	2015		2014		2013
Assets acquired:
Identifiable intangible assets		$102,981		$3,400		$39,843
Goodwill	89,144		2,552		68,095
Inventories	17,254		247		3,112
Property, plant and equipment	16,280		248		6,286
Accounts receivable	10,719		256		9,233
Other assets	2,594		12		2,565
Total assets acquired, excluding cash	238,972		6,715		129,134

Liabilities assumed:
Deferred income taxes	6,788		—		13,857
Accounts payable	4,845		—		1,746
Accrued expenses	2,576		12		3,846
Other liabilities	621		—		—
Total liabilities assumed	14,830		12		19,449

Noncontrolling interests in consolidated subsidiaries	36,224		—		—

Net assets acquired, excluding cash		$187,918		$6,703		$109,685

The allocation of the aggregate total consideration for the Company's fiscal 2015 acquisitions to the tangible and identifiable intangible assets acquired and liabilities and noncontrolling interests assumed is preliminary until the Company obtains final information regarding their fair values. However, the Company does not expect any adjustments to such allocations to be material to the Company's consolidated financial statements. During fiscal 2015, the Company recorded certain immaterial measurement period adjustments to the allocation of the total consideration for its fiscal 2014 acquisition. The primary items that generated the goodwill recognized were the premiums paid by the Company for the future earnings potential of the businesses acquired and the value of their assembled workforces that do not qualify for separate recognition, which, in the case of MMS, ACT, Harter and Aeroworks benefit both the Company and the noncontrolling interest holders. The fair value of the noncontrolling interests in MMS, ACT, Harter and Aeroworks was determined based on the consideration paid by the Company for its controlling ownership interest adjusted for a lack of control that a market participant would consider when estimating the fair value of the noncontrolling interest.

The operating results of the Company’s fiscal 2015 acquisitions were included in the Company’s results of operations from each of the effective acquisition dates. The Company’s consolidated net sales and net income attributable to HEICO for fiscal 2015 includes approximately $62.9 million and $7.9 million, respectively, from the fiscal 2015 acquisitions.

The following table presents unaudited pro forma financial information for fiscal 2015 and fiscal 2014 as if the Company's fiscal 2015 acquisitions had occurred as of November 1, 2013 (in thousands):



	Year ended October 31,
	2015		2014
Net sales		$1,244,911		$1,228,987
Net income from consolidated operations		$163,012		$150,412
Net income attributable to HEICO		$140,771		$130,539
Net income per share attributable to HEICO shareholders:
Basic		$2.11		$1.96
Diluted		$2.08		$1.94

The pro forma financial information is presented for comparative purposes only and is not necessarily indicative of the results of operations that actually would have been achieved if the acquisitions had taken place as of November 1, 2013. The unaudited pro forma financial information includes adjustments to historical amounts such as additional amortization expense related to intangible assets acquired, increased interest expense associated with borrowings to finance the acquisitions and inventory purchase accounting adjustments charged to cost of sales as the inventory is sold.

Additional Purchase Consideration

During fiscal 2014 and 2013, the Company made additional purchase consideration payments in cash of $2.0 million and $1.2 million, respectively, pursuant to the terms of the purchase agreements related to certain recent acquisitions.

- Definition

The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6996-128479

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e7000-128479

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4922-128472

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4926-128472

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

-Section 50

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4934-128472

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1383-128463

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1486-128463

Reference 9: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

Reference 10: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1497-128463

Reference 11: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1490-128463

Reference 12: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 50

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e7008-128479

Reference 13: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4845-128472

Reference 14: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1500-128463

Reference 15: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 7

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1524-128463

+ Details

SELECTED FINANCIAL STATEMENT INFORMATION

12 Months Ended

Oct. 31, 2015

Selected Financial Statement Information [Abstract]

Additional Financial Information Disclosure [Text Block]

SELECTED FINANCIAL STATEMENT INFORMATION

Accounts Receivable



	As of October 31,
(in thousands)	2015			2014
Accounts receivable		$183,631			$151,812
Less: Allowance for doubtful accounts	(2,038		)	(2,143		)
Accounts receivable, net		$181,593			$149,669

Costs and Estimated Earnings on Uncompleted Percentage-of-Completion Contracts



	As of October 31,
(in thousands)	2015			2014
Costs incurred on uncompleted contracts		$22,645			$24,437
Estimated earnings	16,116			11,747
	38,761			36,184
Less: Billings to date	(36,442		)	(29,829		)
		$2,319			$6,355
Included in the accompanying Consolidated Balance Sheets under the following captions:
Accounts receivable, net (costs and estimated earnings in excess of billings)		$6,263			$8,161
Accrued expenses and other current liabilities (billings in excess of costs and estimated earnings)	(3,944		)	(1,806		)
		$2,319			$6,355

Changes in estimates pertaining to percentage-of-completion contracts did not have a material effect on net income from consolidated operations in fiscal 2015, 2014 or 2013.

Inventories



	As of October 31,
(in thousands)	2015			2014
Finished products		$119,262			$106,229
Work in process	32,201			30,056
Materials, parts, assemblies and supplies	89,739			79,163
Contracts in process	4,521			2,594
Less: Billings to date	(2,206		)	—
Inventories, net of valuation reserves		$243,517			$218,042

Contracts in process represents accumulated capitalized costs associated with fixed price contracts. Related progress billings and customer advances (“billings to date”) are classified as a reduction to contracts in process, if any, and any excess is included in accrued expenses and other liabilities.

Property, Plant and Equipment



	As of October 31,
(in thousands)	2015			2014
Land		$5,060			$4,501
Buildings and improvements	70,626			60,332
Machinery, equipment and tooling	152,022			139,963
Construction in progress	4,668			6,905
	232,376			211,701
Less: Accumulated depreciation and amortization	(126,706		)	(117,836		)
Property, plant and equipment, net		$105,670			$93,865

The amounts set forth above include tooling costs having a net book value of $6.5 million and $6.0 million as of October 31, 2015 and 2014, respectively. Amortization expense on capitalized tooling was $2.4 million, $2.4 million and $2.2 million in fiscal 2015, 2014 and 2013, respectively.

The amounts set forth above also include $3.7 million and $4.6 million of assets under capital leases as of October 31, 2015 and October 31, 2014, respectively. Accumulated depreciation associated with the assets under capital leases was $.7 million and $1.0 million as of October 31, 2015 and October 31, 2014, respectively. See Note 5, Long-Term Debt, for additional information pertaining to these capital lease obligations.

Depreciation and amortization expense, exclusive of tooling, on property, plant and equipment was $17.8 million, $17.1 million and $13.4 million in fiscal 2015, 2014 and 2013, respectively.

Accrued Expenses and Other Current Liabilities



	As of October 31,
(in thousands)	2015		2014
Accrued employee compensation and related payroll taxes		$53,238		$52,480
Deferred revenue	16,498		12,481
Accrued customer rebates and credits	8,072		10,924
Accrued additional purchase consideration	6,859		90
Other	15,488		16,603
Accrued expenses and other current liabilities		$100,155		$92,578

The total customer rebates and credits deducted within net sales in fiscal 2015, 2014 and 2013 was $4.7 million, $8.3 million and $8.3 million, respectively. The decrease in total customer rebates and credits deducted within net sales in fiscal 2015 and the amount of accrued customer rebates and credits principally reflects a reduction in the net sales volume of certain customers eligible for rebates as well as a reduction in the associated rebate percentages. The increase in deferred revenue principally reflects billings in excess of costs and earnings pertaining to certain of the Company's percentage-of-completion contracts. The increase in accrued additional purchase consideration principally reflects the estimated fair value of contingent consideration related to a fiscal 2015 acquisition expected to be paid in fiscal 2016. See Note 7, Fair Value Measurements, for additional information regarding the Company's contingent consideration obligations.

Other Long-Term Assets and Liabilities

The Company provides eligible employees, officers and directors of the Company the opportunity to voluntarily defer base salary, bonus payments, commissions, long-term incentive awards and directors fees, as applicable, on a pre-tax basis through the HEICO Corporation Leadership Compensation Plan (“LCP”), a nonqualified deferred compensation plan that conforms to Section 409A of the Internal Revenue Code. The Company matches 50% of the first 6% of base salary deferred by each participant. Director fees that would otherwise be payable in Company common stock may be deferred into the LCP, and, when distributable, are distributed in actual shares of Company common stock. The LCP does not provide for diversification of a director’s assets allocated to Company common stock. The deferred compensation obligation associated with Company common stock is recorded as a component of shareholders’ equity at cost and subsequent changes in fair value are not reflected in operations or shareholders’ equity of the Company. Further, while the Company has no obligation to do so, the LCP also provides the Company the opportunity to make discretionary contributions. The Company’s matching contributions and any discretionary contributions are subject to vesting and forfeiture provisions set forth in the LCP. Company contributions to the LCP charged to income in fiscal 2015, 2014 and 2013 totaled $5.7 million, $5.3 million and $4.3 million, respectively. The aggregate liabilities of the LCP were $76.2 million and $65.0 million as of October 31, 2015 and 2014, respectively, and are classified within other long-term liabilities in the Company’s Consolidated Balance Sheets. The assets of the LCP, totaling $77.1 million and $65.9 million as of October 31, 2015 and 2014, respectively, are classified within other assets and principally represent cash surrender values of life insurance policies that are held within an irrevocable trust that may be used to satisfy the obligations under the LCP.

Other long-term liabilities also includes deferred compensation of $4.5 million and $5.5 million as of October 31, 2015 and 2014, respectively, principally related to elective deferrals of salary and bonuses under a Company sponsored non-qualified deferred compensation plan formerly available to selected employees. The Company makes no contributions to this plan. The assets of this plan, which equaled the deferred compensation liability as of October 31, 2015 and 2014, respectively, are held within an irrevocable trust and classified within other assets in the Company’s Consolidated Balance Sheets. Additional information regarding the assets of this deferred compensation plan and the LCP may be found in Note 7, Fair Value Measurements.

Research and Development Expenses

The amount of new product research and development ("R&D") expenses included in cost of sales is as follows (in thousands):



	Year ended October 31,
	2015		2014		2013
R&D expenses		$38,747		$37,377		$32,897

Accumulated Other Comprehensive Income (Loss)

Changes in the components of accumulated other comprehensive income (loss) during fiscal 2015 and 2014 are as follows (in thousands):



	Foreign Currency Translation			Pension Benefit Obligation			Accumulated Other Comprehensive Income (Loss)
Balances as of October 31, 2013		($466	)		$610			$144
Unrealized loss	(7,882		)	(551		)	(8,433		)
Balances as of October 31, 2014	(8,348		)	59			(8,289		)
Unrealized loss	(16,020		)	(771		)	(16,791		)
Balances as of October 31, 2015		($24,368	)		($712	)		($25,080	)

GOODWILL AND OTHER INTANGIBLE ASSETS

12 Months Ended

Oct. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets Disclosure [Text Block]

GOODWILL AND OTHER INTANGIBLE ASSETS

Changes in the carrying amount of goodwill during fiscal 2015 and 2014 by operating segment are as follows (in thousands):



	Segment						Consolidated
	FSG			ETG			Totals
Balances as of October 31, 2013		$279,855			$408,634			$688,489
Goodwill acquired	2,552			—			2,552
Foreign currency translation adjustments	—			(4,797		)	(4,797		)
Adjustments to goodwill	—			27			27
Balances as of October 31, 2014	282,407			403,864			686,271
Goodwill acquired	56,441			32,703			89,144
Foreign currency translation adjustments	(1,341		)	(7,435		)	(8,776		)
Balances as of October 31, 2015		$337,507			$429,132			$766,639

The goodwill acquired during fiscal 2015 and 2014 relates to the acquisitions consummated in those respective years as described in Note 2, Acquisitions. Goodwill acquired represents the residual value after the allocation of the total consideration to the tangible and identifiable intangible assets acquired and liabilities and noncontrolling interests assumed. The foreign currency translation adjustments reflect unrealized translation losses on the goodwill recognized in connection with foreign subsidiaries. Foreign currency translation adjustments are included in other comprehensive income (loss) in the Company's Consolidated Statements of Comprehensive Income. The adjustments to goodwill during fiscal 2014 represent immaterial measurement period adjustments to the purchase price allocations of certain fiscal 2013 acquisitions. The Company estimates that approximately $60 million and $3 million of the goodwill acquired in fiscal 2015 and fiscal 2014, respectively, is deductible for income tax purposes. Based on the annual test for goodwill impairment as of October 31, 2015, the Company determined there is no impairment of its goodwill and the fair value of each of the Company’s reporting units significantly exceeded their carrying value.

Identifiable intangible assets consist of (in thousands):



	As of October 31, 2015							As of October 31, 2014
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Amortizing Assets:
Customer relationships		$190,450		($63,461	)		$126,989		$144,478		($55,393	)		$89,085
Intellectual property	98,143		(22,912		)	75,231		73,005		(17,620		)	55,385
Licenses	4,200		(1,882		)	2,318		2,900		(1,645		)	1,255
Non-compete agreements	914		(914		)	—		1,020		(1,020		)	—
Patents	746		(447		)	299		712		(405		)	307
Trade names	166		(38		)	128		166		(17		)	149
	294,619		(89,654		)	204,965		222,281		(76,100		)	146,181
Non-Amortizing Assets:
Trade names	67,628		—			67,628		54,629		—			54,629
		$362,247		($89,654	)		$272,593		$276,910		($76,100	)		$200,810

The increase in the gross carrying amount of customer relationships, intellectual property, licenses and non-amortizing trade names as of October 31, 2015 compared to October 31, 2014 principally relates to such intangible assets recognized in connection with the fiscal 2015 acquisitions (See Note 2, Acquisitions). The weighted-average amortization period of the customer relationships, intellectual property and licenses acquired during fiscal 2015 is 10 years, 12 years, and 11 years, respectively.

Amortization expense related to intangible assets was $27.0 million, $27.7 million and $20.6 million in fiscal 2015, 2014 and 2013, respectively. Amortization expense for each of the next five fiscal years and thereafter is estimated to be $30.7 million in fiscal 2016, $29.8 million in fiscal 2017, $27.8 million in fiscal 2018, $25.8 million in fiscal 2019, $23.2 million in fiscal 2020 and $67.7 million thereafter.

- Definition

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.

+ References+ Details

LONG-TERM DEBT

12 Months Ended

Oct. 31, 2015

Debt Disclosure [Abstract]

Long-term Debt [Text Block]

LONG-TERM DEBT

Long-term debt consists of the following (in thousands):



	As of October 31,
	2015			2014
Borrowings under revolving credit facility		$365,203			$326,000
Capital leases	2,395			3,109
	367,598			329,109
Less: Current maturities of long-term debt	(357		)	(418		)
		$367,241			$328,691

As of October 31, 2015, the Company's long-term debt, excluding capital leases, consisted solely of $365.2 million of borrowings under its revolving credit facility, all of which will mature in fiscal 2019. As of October 31, 2015 and 2014, the weighted average interest rate on borrowings under the Company's revolving credit facility was 1.3%. The revolving credit facility contains both financial and non-financial covenants. As of October 31, 2015, the Company was in compliance with all such covenants.

During fiscal 2015, the Company elected to borrow €32 million under its revolving credit facility, which allows for borrowings made in foreign currencies up to a $50 million sublimit. The funds were used to facilitate a fiscal 2015 acquisition. As of October 31, 2015, the U.S. dollar equivalent of the Company's Euro borrowing was $35.2 million.

Capital Lease Obligations

A subsidiary of HEICO Electronic is a party to a capital lease for a manufacturing facility and related property in France. The lease contains a bargain purchase option and has a twelve-year term, which began in fiscal 2011. Additionally, the subsidiary is a party to various capital leases, principally for manufacturing and office equipment, with lease terms of approximately five years. The estimated future minimum lease payments of all capital leases for the next five fiscal years and thereafter are as follows (in thousands):



Year ending October 31,
2016		$455
2017	400
2018	395
2019	395
2020	358
Thereafter	753
Total minimum lease payments	2,756
Less: amount representing interest	(361		)
Present value of minimum lease payments		$2,395

Revolving Credit Facility

In December 2011, the Company entered into a $670 million Revolving Credit Agreement (“Credit Facility”) with a bank syndicate. The Credit Facility may be used for working capital and general corporate needs of the Company, including capital expenditures and to finance acquisitions. In December 2012, the Company entered into an amendment to extend the maturity date of the Credit Facility by one year to December 2017. The Company also amended certain covenants contained within the Credit Facility agreement to accommodate payment of a special and extraordinary cash dividend paid in December 2012. See Note 8, Shareholders' Equity, for additional information.

In November 2013, the Company entered into an amendment to extend the maturity date of the Credit Facility by one year to December 2018 and to increase the aggregate principal amount to $800 million. Furthermore, the amendment includes a feature that will allow the Company to increase the aggregate principal amount by an additional $200 million to become a $1.0 billion facility through increased commitments from existing lenders or the addition of new lenders.

Advances under the Credit Facility accrue interest at the Company’s choice of the “Base Rate” or the London Interbank Offered Rate (“LIBOR”) plus the applicable margin (based on the Company’s ratio of total funded debt to earnings before interest, taxes, depreciation and amortization, noncontrolling interests and non-cash charges, or “leverage ratio”). The Base Rate is the highest of (i) the Prime Rate; (ii) the Federal Funds rate plus .50% per annum; and (iii) the Adjusted LIBO Rate determined on a daily basis for an Interest Period of one month plus 1.00% per annum, as such capitalized terms are defined in the Credit Facility. The applicable margin for a LIBOR-based borrowing ranges from .75% to 2.25%. The applicable margin for a Base Rate borrowing ranges from 0% to 1.25%. A fee is charged on the amount of the unused commitment ranging from .125% to .35% (depending on the Company’s leverage ratio). The Credit Facility also includes a $50 million sublimit for borrowings made in foreign currencies, letters of credit and swingline borrowings. Outstanding principal, accrued and unpaid interest and other amounts payable under the Credit Facility may be accelerated upon an event of default, as such events are described in the Credit Facility. The Credit Facility is unsecured and contains covenants that restrict the amount of certain payments, including dividends, and require, among other things, the maintenance of a total leverage ratio, a senior leverage ratio and a fixed charge coverage ratio. In the event the Company’s leverage ratio exceeds a specified level, the Credit Facility would become secured by the capital stock owned in substantially all of the Company’s subsidiaries.

INCOME TAXES

12 Months Ended

Oct. 31, 2015

Income Tax Disclosure [Abstract]

Income Tax Disclosure [Text Block]

INCOME TAXES

The components of income before income taxes and noncontrolling interests are as follows (in thousands):



	Year ended October 31,
	2015		2014		2013
Domestic		$206,612		$185,842		$168,643
Foreign	18,352		12,730		12,118
Income before taxes and noncontrolling interests		$224,964		$198,572		$180,761

The components of the provision for income taxes on income before income taxes and noncontrolling interests are as follows (in thousands):



	Year ended October 31,
	2015			2014			2013
Current:
Federal		$65,857			$63,264			$49,275
State	8,559			10,145			9,060
Foreign	4,064			3,136			3,650
	78,480			76,545			61,985
Deferred:
Federal	(4,459		)	(14,000		)	(4,786		)
State	(1,907		)	(2,871		)	(467		)
Foreign	(714		)	126			(532		)
	(7,080		)	(16,745		)	(5,785		)
Total income tax expense		$71,400			$59,800			$56,200

A reconciliation of the federal statutory income tax rate to the Company’s effective tax rate is as follows:



	Year ended October 31,
	2015		2014		2013
Federal statutory income tax rate	35.0	%	35.0	%	35.0	%
State taxes, net of federal income tax benefit	2.4		2.9		3.1
Research and development tax credits	(1.9	)	(1.2	)	(2.6	)
Noncontrolling interests’ share of income	(1.3	)	(1.0	)	(1.3	)
Domestic production activities tax deduction	(1.2	)	(1.6	)	(1.2	)
Foreign taxes, where permanently reinvested outside of the U.S.	(.8	)	—		—
Nontaxable reduction in accrued contingent consideration	(.2	)	(3.4	)	—
Tax-exempt losses (gains) on corporate owned life insurance policies	.1		(.6	)	(1.4	)
Other, net	(.4	)	—		(.5	)
Effective tax rate	31.7	%	30.1	%	31.1	%

The Company’s effective tax rate in fiscal 2015 increased to 31.7% from 30.1% in fiscal 2014. The increase is principally due to the impact of a larger nontaxable reduction in accrued contingent consideration during fiscal 2014 associated with a prior year acquisition acquired by means of a stock transaction and the impact of higher tax-exempt unrealized gains in the cash surrender values of life insurance policies related to the LCP in fiscal 2014 compared to fiscal 2015. These increases were partially offset by an income tax credit for qualified R&D activities for the last ten months of fiscal 2014 that was recognized in the first quarter of fiscal 2015 resulting from the retroactive extension of the U.S. federal R&D tax credit in December 2014 to cover calendar year 2014, the benefit of recognizing additional foreign tax credits related to R&D activities at one of the Company's foreign subsidiaries inclusive of amendments to prior year tax returns, and the Company's decision to not make a provision for U.S. income taxes on the undistributed earnings of a fiscal 2015 foreign acquisition.

The Company's effective tax rate in fiscal 2014 decreased to 30.1% from 31.1% in fiscal 2013. The decrease is principally attributed to the impact of a nontaxable reduction in accrued contingent consideration during fiscal 2014 associated with a fiscal 2013 acquisition acquired by means of a stock transaction. This decrease was partially offset by lower U.S. federal R&D tax credits recognized in fiscal 2014 due to the expiration of the U.S. federal R&D tax credit in December 2013 compared to fiscal 2013 during which the retroactive extension of the U.S. federal R&D tax credit in the first quarter resulted in twenty-two months of U.S. federal R&D tax credits recognized that year. Additionally, the decrease in the effective tax rate was partially offset by the impact of higher tax-exempt unrealized gains in the cash surrender values of life insurance policies related to the LCP in fiscal 2013 compared to fiscal 2014.

The Company files income tax returns in the U.S. federal jurisdiction and in multiple state jurisdictions. The Company is also subject to income taxes in certain jurisdictions outside the U.S., none of which are individually material to the accompanying consolidated financial statements. Generally, the Company is no longer subject to U.S. federal, state or foreign examinations by tax authorities for years prior to fiscal 2011.

The Company has not made a provision for U.S. income taxes on the undistributed

earnings of a fiscal 2015 foreign acquisition as such earnings are considered permanently

reinvested outside of the U.S. The amount of undistributed earnings is not material to the

Company's consolidated financial statements.

Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. The Company believes that it is more likely than not that it will generate sufficient future taxable income to utilize all of its deferred tax assets and has therefore not recorded a valuation allowance on any such asset.

Significant components of the Company’s deferred tax assets and liabilities are as follows (in thousands):



	As of October 31,
	2015			2014
Deferred tax assets:
Deferred compensation liability		$31,520			$27,568
Inventories	24,912			23,099
Share-based compensation	9,333			7,427
Bonus accrual	3,791			4,031
Deferred revenue	2,005			2,660
Vacation accrual	1,836			1,724
R&D related carryforward	1,826			2,068
Customer rebates accrual	1,236			1,635
Other	7,450			8,258
Total deferred tax assets	83,909			78,470

Deferred tax liabilities:
Goodwill and other intangible assets	(148,448		)	(144,381		)
Property, plant and equipment	(7,667		)	(9,090		)
Other	(2,005		)	(880		)
Total deferred tax liabilities	(158,120		)	(154,351		)
Net deferred tax liability		($74,211	)		($75,881	)

The net deferred tax liability is classified in the Company’s Consolidated Balance Sheets as follows (in thousands):



	As of October 31,
	2015			2014
Current asset		$35,530			$34,485
Long-term asset	847			1,063
Long-term liability	(110,588		)	(111,429		)
Net deferred tax liability		($74,211	)		($75,881	)

The Company's deferred income tax benefit was $7.1 million, $16.7 million and $5.8 million in fiscal 2015, 2014 and 2013, respectively. The larger deferred income tax benefit recognized in fiscal 2014 is principally due to the impact of impairment losses recorded in fiscal 2014 related to certain intangible assets recognized in connection with a fiscal 2013 acquisition, the long-term deferred revenue recognized in fiscal 2014, and the impact from the timing of the extension of the bonus depreciation allowance on new property, plant and equipment that resulted in only two months of such allowance recognized in fiscal 2014.

As of October 31, 2015 and 2014, the Company’s liability for gross unrecognized tax benefits related to uncertain tax positions was $.8 million and $.9 million, respectively, of which $.5 million and $.6 million, respectively, would decrease the Company’s income tax expense and effective income tax rate if the tax benefits were recognized. A reconciliation of the activity related to the liability for gross unrecognized tax benefits during the fiscal years ended October 31, 2015 and 2014 is as follows (in thousands):



	Year ended October 31,
	2015			2014
Balances as of beginning of year		$879			$1,072
Increases related to current year tax positions	279			138
Increases related to prior year tax positions	30			10
Decreases related to prior year tax positions	(80		)	—
Settlements	(118		)	(22		)
Lapse of statutes of limitations	(203		)	(319		)
Balances as of end of year		$787			$879

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References+ Details

FAIR VALUE MEASUREMENTS

12 Months Ended

Oct. 31, 2015

Fair Value Disclosures [Abstract]

Fair Value Disclosures [Text Block]

FAIR VALUE MEASUREMENTS

The Company's assets and liabilities that were measured at fair value on a recurring basis are set forth by level within the fair value hierarchy in the following tables (in thousands):



	As of October 31, 2015
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Assets:
Deferred compensation plans:
Corporate owned life insurance		$—		$73,238		$—		$73,238
Money market funds	3,832		—		—		3,832
Equity securities	1,845		—		—		1,845
Mutual funds	1,665		—		—		1,665
Other	946		50		—		996
Total assets		$8,288		$73,288		$—		$81,576

Liabilities:
Contingent consideration		$—		$—		$21,405		$21,405



	As of October 31, 2014
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Assets:
Deferred compensation plans:
Corporate owned life insurance		$—		$61,958		$—		$61,958
Money market funds	3,974		—		—		3,974
Equity securities	2,225		—		—		2,225
Mutual funds	1,903		—		—		1,903
Other	1,339		50		—		1,389
Total assets		$9,441		$62,008		$—		$71,449

Liabilities:
Contingent consideration		$—		$—		$1,184		$1,184

The Company maintains two non-qualified deferred compensation plans. The assets of the LCP principally represent cash surrender values of life insurance policies, which derive their fair values from investments in mutual funds that are managed by an insurance company and are classified within Level 2 and valued using a market approach. Certain other assets of the LCP represent investments in money market funds that are classified within Level 1. The assets of the Company's other deferred compensation plan are principally invested in equity securities and mutual funds that are classified within Level 1. The assets of both plans are held within irrevocable trusts and classified within other assets in the Company’s Consolidated Balance Sheets.

As part of the agreement to acquire a subsidiary by the FSG in fiscal 2015, the Company may be obligated to pay contingent consideration of up to €24.4 million in aggregate, which translates to approximately $26.9 million based on the October 31, 2015 exchange rate, should the acquired entity meet certain earnings objectives during each of the first four years following the acquisition. The estimated fair value of the contingent consideration as of the acquisition date was €18.1 million, or approximately $21.3 million. As of October 31, 2015, the estimated fair value of the contingent consideration was €19.5 million, or $21.4 million. The $.1 million increase was recorded as an addition to SG&A expenses in the Company's Consolidated Statement of Operations and is principally attributed to revised earnings estimates that reflect more favorable projected market conditions during the earnout period, nearly offset by the strengthening of the U.S. dollar relative to the Euro.

As part of the agreement to acquire a subsidiary by the ETG in fiscal 2013, the Company may have been obligated to pay contingent consideration of up to $20.0 million had the acquired entity met certain earnings objectives during the last three months of the calendar year of acquisition and may be obligated to pay contingent consideration of up to $30.0 million should the acquired entity meet certain earnings objectives during calendar years 2014 and 2015. In December 2013, the acquired entity incurred unanticipated costs associated with certain contracts for which revenue is recognized on the percentage-of-completion method and as a result, did not meet its calendar 2013 related earnings objectives. Accordingly, the $7.0 million estimated fair value of the contingent consideration accrued as of October 31, 2013 was recorded as a reduction to SG&A expenses in the Company's Consolidated Statement of Operations in the first quarter of fiscal 2014. During fiscal 2014, management revised its earnings estimates due to less favorable projected market conditions during the earnout period for certain of the space products the subsidiary produces. Accordingly, $12.5 million of the $13.7 million estimated fair value of the contingent consideration accrued as of October 31, 2013 was recorded as a reduction to SG&A expenses in fiscal 2014. The remaining $1.2 million accrued contingent consideration as of October 31, 2014 was recorded as a reduction of SG&A expenses in fiscal 2015. Additionally, the aforementioned market conditions resulted in the Company concluding it had a triggering event requiring assessment of impairment of the subsidiary's intangible assets during fiscal 2014. Please see below for further information pertaining to the measurement and recognition of impairment losses associated with the intangible assets of this subsidiary.

As part of the agreement to acquire a subsidiary by the ETG in fiscal 2012, the Company may be obligated to pay contingent consideration of up to $7.7 million in aggregate should the acquired entity meet certain earnings objectives during each of the next two years following the third anniversary date of the acquisition. During fiscal 2014, management revised its earnings estimates due to less favorable projected market conditions during the earnout period. Accordingly, the $8.6 million estimated fair value of the contingent consideration accrued as of October 31, 2013 was recorded as a reduction to SG&A expenses in the Company's Consolidated Statement of Operations in fiscal 2014. Additionally, the aforementioned conditions resulted in the Company concluding it had a triggering event requiring assessment of impairment of the subsidiary's intangible assets during fiscal 2014. Please see below for further information pertaining to the measurement and recognition of impairment losses associated with the intangible assets of this subsidiary. As of October 31, 2015, the Company did not have any contingent consideration accrued pertaining to this acquisition.

The estimated fair value of the fiscal 2015 contingent consideration arrangement described above is classified within Level 3 and was determined using a probability-based scenario analysis approach. Under this method, a set of discrete potential future subsidiary earnings was determined using internal estimates based on various revenue growth rate assumptions for each scenario. A probability of likelihood was assigned to each discrete potential future earnings estimate and the resultant contingent consideration was calculated. The resulting probability-weighted contingent consideration amount was discounted using a weighted average discount rate reflecting the credit risk of a market participant. Changes in either the revenue growth rates, related earnings or the discount rate could result in a material change to the amount of contingent consideration accrued and such changes will be recorded in the Company's consolidated statements of operations.

The Level 3 inputs used to derive the estimated fair value of the Company's contingent consideration liability as of October 31, 2015 are as follows:



	Fiscal 2015 Acquisition
Compound annual revenue growth rate range	2	%	-	16%
Weighted average discount rate	2.0%

Changes in the Company’s contingent consideration liability measured at fair value on a recurring basis using unobservable inputs (Level 3) for the fiscal years ended October 31, 2015 and 2014 are as follows (in thousands):



	Liabilities
Balance as of October 31, 2013		$29,310
Decrease in accrued contingent consideration	(28,126		)
Balance as of October 31, 2014	1,184
Contingent consideration related to acquisition	21,355
Increase in accrued contingent consideration, net	293
Foreign currency transaction adjustments	(1,427		)
Balance as of October 31, 2015		$21,405

Included in the accompanying Consolidated Balance Sheet under the following captions:
Accrued expenses and other current liabilities		$6,686
Other long-term liabilities	14,719
		$21,405

The Company did not have any transfers between Level 1 and Level 2 fair value measurements during fiscal 2015 and 2014.

The carrying amounts of the Company’s cash and cash equivalents, accounts receivable, trade accounts payable and accrued expenses and other current liabilities approximate fair value as of October 31, 2015 due to the relatively short maturity of the respective instruments. The carrying amount of long-term debt approximates fair value due to its variable interest rates.

During fiscal 2014, certain customer relationships, non-amortizing trade names and intellectual property within the ETG were measured at fair value on a nonrecurring basis, resulting in the recognition of impairment losses aggregating $15.0 million.

The fair values of the Company’s nonfinancial assets and liabilities that were measured at fair value on a nonrecurring basis, which are classified within Level 3, and the related impairment losses recognized in fiscal 2014 are as follows (in thousands):



	Carrying Amount		Impairment Loss			Fair Value (Level 3)
Assets:
Customer relationships		$19,366		($11,200	)		$8,166
Non-amortizing trade names	10,000		(1,900		)	8,100
Intellectual property	2,302		(1,900		)	402
Impairment of intangible assets				($15,000	)

The fair values of such customer relationships, non-amortizing trade names and intellectual property were determined using variations of the income approach which apply an asset-specific discount rate to a forecast of asset-specific cash flows. These methods utilize certain significant unobservable inputs categorized as Level 3. The Level 3 inputs used to derive the estimated fair values of the customer relationships, non-amortizing trade names and intellectual property during fiscal 2014 are as follows:



	Customer Relationships	Non-Amortizing Trade Names	Intellectual Property
Valuation method	Excess Earnings	Relief from Royalty	Relief from Royalty
Discount rate	15.0% - 19.0%	14.0% - 18.0%	19.0%
Annual attrition rate	25.0% - 30.0%	N/A	20.0%
Royalty rate	N/A	1.0% - 2.5%	6.0%

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References+ Details

SHAREHOLDERS' EQUITY	12 Months Ended
SHAREHOLDERS' EQUITY	Oct. 31, 2015
Stockholders' Equity Note [Abstract]
Stockholders' Equity Note Disclosure [Text Block]	SHAREHOLDERS’ EQUITY Common Stock and Class A Common Stock The Company has two classes of common stock that are virtually identical in all economic respects except voting rights. Each share of Common Stock is entitled to one vote per share. Each share of Class A Common Stock is entitled to a 1/10 vote per share. Holders of the Company’s common stock are entitled to receive when, as and if declared by the Board of Directors, dividends and other distributions payable in cash, property, stock or otherwise. In the event of liquidation, after payment of debts and other liabilities of the Company, the remaining assets of the Company will be distributable ratably among the holders of both classes of common stock. Share Repurchases In 1990, the Company's Board of Directors authorized a share repurchase program, which allows the Company to repurchase shares of Company common stock in the open market or in privately negotiated transactions at the Company's discretion, subject to certain restrictions included in the Company's revolving credit agreement. As of October 31, 2015, the maximum number of shares that may yet be purchased under this program was 2,501,813 of either or both of the Company's Class A Common Stock and the Company's Common Stock. The repurchase program does not have a fixed termination date. During fiscal 2015, 2014 and 2013, the Company did not repurchase any shares of Company common stock under this program. During fiscal 2014, the Company repurchased an aggregate 6,833 shares of Class A Common Stock at a total cost of approximately $.3 million. The shares purchased represent shares tendered as payment of employee withholding taxes due upon the issuance of a share-based award. During fiscal 2013, the Company repurchased an aggregate 36,354 shares of Common Stock at a total cost of $1.3 million and an aggregate 39,965 shares of Class A Common Stock at a total cost of $1.1 million. The shares purchased in fiscal 2013 occurred as settlement for employee taxes due pertaining to exercises of non-qualified stock options. The shares purchased in fiscal 2014 and 2013 did not impact the number of shares authorized for future purchase under the Company’s share repurchase program and are reflected as redemptions of common stock related to share-based compensation in the Company's Consolidated Statements of Shareholders' Equity and the Company's Consolidated Statements of Cash Flows. Special and Extraordinary Cash Dividends In January 2014, the Company paid a special and extraordinary $.35 per share cash dividend on both classes of HEICO's common stock as well as its regular semi-annual $.06 per share cash dividend. In December 2012, the Company paid a special and extraordinary $1.712 per share cash dividend on both classes of HEICO's common stock as well as a regular semi-annual $.048 per share cash dividend that was accelerated from January 2013. The dividends, which aggregated $27.2 million in fiscal 2014 and $116.6 million in fiscal 2013, were principally funded from borrowings under the Company's revolving credit facility. Noncontrolling Interests Consistent with the Company's past practice of increasing its ownership in certain non-wholly-owned subsidiaries, on February 14, 2014, HEICO Corporation acquired the 20% noncontrolling interest held by LHT in four of the Company's existing subsidiaries principally operating in the specialty products and distribution businesses within HEICO Aerospace (the “Transaction”). Pursuant to the Transaction, HEICO Aerospace paid dividends proportional to the ownership (80%/20%) to HEICO and LHT, and HEICO transferred the businesses to HEICO Flight Support Corp. HEICO did not record any gain or loss in connection with the Transaction. LHT’s dividend of $67.4 million was paid in cash, principally using proceeds from the Company’s revolving credit facility. LHT remains a 20% owner in HEICO Aerospace, a leading producer of PMA parts and component repair and overhaul services. During fiscal 2014, the Put Right held by the noncontrolling interest holders in one of the Company's subsidiaries expired, resulting in a reclassification of the Redemption Amount from redeemable noncontrolling interests (temporary equity) to noncontrolling interests (permanent equity). See Note 11, Redeemable Noncontrolling Interests, for additional information.

- Definition

The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.29-31)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21506-112644

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30, 31

-Article 5

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SAB TOPIC 4.E)

-URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74512-122707

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 4

-Subparagraph (SAB TOPIC 4.C)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187143-122770

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Article 4

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 4

-Section C

Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 4

-Section E

Reference 9: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(d),(e))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 10: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Preferred Stock

-URI http://asc.fasb.org/extlink&oid=6521494

Reference 11: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 12: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

Reference 13: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Reference 14: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644

Reference 15: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 11

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21564-112644

Reference 16: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21488-112644

Reference 17: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21484-112644

Reference 18: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph d

-Article 4

Reference 19: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 30

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23285-112656

+ Details

SHARE-BASED COMPENSATION

12 Months Ended

Oct. 31, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Disclosure of Compensation Related Costs, Share-based Payments [Text Block]

SHARE-BASED COMPENSATION

The Company currently maintains one share-based compensation plan, the HEICO Corporation 2012 Incentive Compensation Plan (“2012 Plan”), under which it may grant various forms of share-based compensation awards including, but not limited to, stock options, restricted stock, restricted stock awards and stock appreciation rights. The 2012 Plan became effective in fiscal 2012, the same time the Company's 2002 Stock Option Plan (“2002 Plan”) expired. Also, in fiscal 2012, the Company made a decision to no longer issue options under its Non-Qualified Stock Option Plan (“NQSOP”). Options outstanding under the 2002 Plan and NQSOP may be exercised pursuant to their terms. The total number of shares approved by the shareholders of the Company for the 2012 Plan is 2.7 million plus any options outstanding under the 2002 Plan and NQSOP as of the 2012 Plan's effective date that are subsequently forfeited or expire. A total of approximately 4.6 million shares of the Company's common stock are reserved for issuance to employees, directors, officers and consultants as of October 31, 2015, including 3.3 million shares currently under option and 1.3 million shares available for future grants.

Stock options granted pursuant to the 2012 Plan may be designated as Common Stock and/or Class A Common Stock in such proportions as shall be determined by the Board of Directors or the Stock Option Plan Committee at its sole discretion. The exercise price per share of a stock option granted under the 2012 Plan may not be less than the fair market value of the designated class of Company common stock as of the date of grant and stock option grants vest ratably over a period specified as of the date of grant (generally five years) and expire ten years after the date of grant. Options issued under the 2012 Plan may be designated as incentive stock options or non-qualified stock options, but only employees are eligible to receive incentive stock options. The 2012 Plan will terminate no later than the tenth anniversary of its effective date.

Information concerning share-based activity for each of the last three fiscal years ended October 31 is as follows (in thousands, except per share data):



			Shares Under Option
	Shares Available For Grant		Shares		Weighted Average Exercise Price
Outstanding as of October 31, 2012	2,389		2,899			$16.90
Granted	(549	)	549			$35.74
Exercised	—		(306	)		$3.78
Outstanding as of October 31, 2013	1,840		3,142			$21.48
Granted	(161	)	161			$43.37
Stock award issuance	(62	)	—			$—
Exercised	—		(39	)		$18.36
Outstanding as of October 31, 2014	1,617		3,264			$22.59
Granted	(291	)	291			$51.85
Exercised	—		(220	)		$16.85
Outstanding as of October 31, 2015	1,326		3,335			$25.52

Information concerning stock options outstanding (all of which are vested or expected to vest) and stock options exercisable by class of common stock as of October 31, 2015 is as follows (in thousands, except per share and contractual life data):



	Options Outstanding
	Number Outstanding	Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (Years)	Aggregate Intrinsic Value
Common Stock	1,579		$23.54	4.9		$43,230
Class A Common Stock	1,756		$27.30	6.3	29,967
	3,335		$25.52	5.6		$73,197



	Options Exercisable
	Number Outstanding	Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (Years)	Aggregate Intrinsic Value
Common Stock	1,342		$19.60	4.3		$41,376
Class A Common Stock	908		$19.91	5.0	21,644
	2,250		$19.73	4.6		$63,020

Information concerning stock options exercised is as follows (in thousands):



	Year ended October 31,
	2015		2014		2013
Cash proceeds from stock option exercises		$3,673		$708		$463
Tax benefit realized from stock option exercises	1,402		93		5,191
Intrinsic value of stock option exercises	6,958		929		8,033

Net income attributable to HEICO for the fiscal years ended October 31, 2015, 2014 and 2013 includes compensation expense of $5.8 million, $6.2 million and $5.1 million, respectively, and an income tax benefit of $2.2 million, $2.4 million and $2.0 million, respectively, related to the Company’s stock options. Substantially all of the stock option compensation expense was recorded as a component of SG&A expenses in the Company’s Consolidated Statements of Operations. As of October 31, 2015, there was $15.2 million of pre-tax unrecognized compensation expense related to nonvested stock options, which is expected to be recognized over a weighted average period of approximately 3.4 years. The total fair value of stock options that vested in fiscal 2015, 2014 and 2013 was $5.5 million, $5.9 million and $4.5 million, respectively. If there were a change in control of the Company, all of the unvested options outstanding as of October 31, 2015 would become immediately exercisable.

For the fiscal years ended October 31, 2015, 2014 and 2013, the excess tax benefit resulting from tax deductions in excess of the cumulative compensation cost recognized for stock options exercised was $1.4 million, $.1 million and $5.1 million, respectively, and is presented as a financing activity in the Company’s Consolidated Statements of Cash Flows.

The fair value of each stock option grant was estimated on the date of grant using the Black-Scholes option-pricing model based on the following weighted average assumptions for the fiscal years ended October 31, 2015, 2014 and 2013:



	2015				2014		2013
	Common Stock		Class A Common Stock		Class A Common Stock		Common Stock		Class A Common Stock
Expected stock price volatility	39.96	%	36.51	%	38.04	%	39.94	%	38.40	%
Risk-free interest rate	2.30	%	2.12	%	2.06	%	2.02	%	1.85	%
Dividend yield	.24	%	.32	%	.38	%	.24	%	.33	%
Forfeiture rate	.00	%	.00	%	.00	%	.00	%	.00	%
Expected option life (years)	9		7		7		9		7
Weighted average fair value	$28.46		$19.59		$17.23		$20.24		$14.29

In fiscal 2013, the Company granted restricted shares in the common stock of one of its subsidiaries representing approximately 1% of the equity of the subsidiary. The shares cliff vest in fiscal 2018. Net income attributable to HEICO includes compensation expense of $.2 million, $.2 million, and less than $.1 million in fiscal 2015, 2014 and 2013 related to unvested restricted shares, respectively. As of October 31, 2015, there was $.5 million of pre-tax unrecognized compensation expense related to the unvested restricted shares, which is expected to be recognized over the next 2.2 years.

In fiscal 2014, the Company issued 24,982 shares of Class A Common Stock in lieu of cash to satisfy an employee bonus award, which was accrued in fiscal 2013. Pursuant to the terms of the 2012 Plan, this stock award reduced the share reserve for issuance under the 2012 Plan by 62,455 shares.

- Definition

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

+ References+ Details

EMPLOYEE RETIREMENT PLANS

12 Months Ended

Oct. 31, 2015

Compensation and Retirement Disclosure [Abstract]

Pension and Other Postretirement Benefits Disclosure [Text Block]

EMPLOYEE RETIREMENT PLANS

The HEICO Savings and Investment Plan (the “401(k) Plan”) is a qualified defined contribution retirement plan under which eligible employees of the Company and its participating subsidiaries may make Elective Deferral Contributions up to the limitations set forth in Section 402(g) of the Internal Revenue Code. The Company generally makes a 25% or 50% Employer Matching Contribution, as determined by the Board of Directors, based on a participant’s Elective Deferral Contribution up to 6% of the participant’s Compensation for the Elective Deferral Contribution period. The 401(k) Plan also provides that the Company may make additional Employer Contributions. Employer Contributions may be contributed in the form of the Company’s common stock or cash, as determined by the Company. Employer Contributions awarded in the form of Company common stock are valued based on the fair value of the underlying shares as of the effective date of contribution. Employer Contributions may be diversified by a participant into any of the participant-directed investment options of the 401(k) Plan; however, Employee Contributions may not be invested in Company common stock.

Participants receive 100% vesting of Employee Contributions and cash dividends received on Company common stock. Vesting in Employer Contributions is based on a participant’s number of years of vesting service. Employer Contributions to the 401(k) Plan charged to income in fiscal 2015, 2014 and 2013 totaled $6.1 million, $6.3 million and $3.2 million, respectively, and were made through the issuance of new shares of Company common stock and the use of forfeited shares within the 401(k) Plan.

Information concerning share-based activity pertaining to the 401(k) Plan for each of the last three fiscal years ended October 31 is as follows (in thousands):



	Common Stock		Class A Common Stock
Shares available for issuance as of October 31, 2012	170		170
Issuance of common stock to 401(k) Plan	(45	)	(45	)
Shares available for issuance as of October 31, 2013	125		125
Issuance of common stock to 401(k) Plan	(57	)	(57	)
Shares available for issuance as of October 31, 2014	68		68
Issuance of common stock to 401(k) Plan	(54	)	(54	)
Shares available for issuance as of October 31, 2015	14		14

As previously mentioned in Note 1, Summary of Significant Accounting Policies, the Company acquired a frozen qualified defined benefit pension plan in connection with a fiscal 2013 acquisition.

Changes in the Plan's projected benefit obligation and plan assets for the fiscal years ended October 31, 2015 and 2014 are as follows (in thousands):



Change in projected benefit obligation:
Projected benefit obligation as of October 31, 2013		$13,213
Actuarial loss	930
Interest cost	610
Benefits paid	(938		)
Projected benefit obligation as of October 31, 2014	13,815
Actuarial loss	716
Interest cost	561
Benefits paid	(924		)
Projected benefit obligation as of October 31, 2015		$14,168

Change in plan assets:
Fair value of plan assets as of October 31, 2013		$11,397
Actual return on plan assets	764
Employer contributions	136
Benefits paid	(938		)
Fair value of plan assets as of October 31, 2014	11,359
Actual return on plan assets	254
Employer contributions	78
Benefits paid	(924		)
Fair value of plan assets as of October 31, 2015		$10,767

Funded status as of October 31, 2014		($2,456	)
Funded status as of October 31, 2015		($3,401	)

The $3.4 million and $2.5 million difference between the projected benefit obligation and fair value of plan assets as of October 31, 2015 and October 31, 2014, respectively, are included in other long-term liabilities within the Company's Consolidated Balance Sheets. Additionally, the Plan experienced a $1.2 million and $.9 million unrealized loss during fiscal 2015 and 2014, respectively, that were recognized in other comprehensive income (loss) where they are reported net of ($.4) million and ($.3) million of tax, respectively. As of October 31, 2015, $1.1 million (pre-tax) represents the total unrealized loss in accumulated other comprehensive income (loss) that has yet to be recognized as a component of net periodic pension income (expense). The Company does not expect to recognize any of the amount within accumulated other comprehensive income (loss) as of October 31, 2015 as a component of net periodic pension income (expense) during fiscal 2016.

Weighted average assumptions used to determine the projected benefit obligation are as follows:



	As of October 31,
	2015		2014
Discount rate	4.47	%	4.20	%

Weighted average assumptions used to determine net pension income are as follows:



	Year ended October 31,
	2015		2014		2013
Discount rate	4.20	%	4.79	%	3.99	%
Expected return on plan assets	6.75	%	6.75	%	6.75	%

The discount rate used to determine the projected benefit obligation was determined using the results of a bond yield curve model based on a portfolio of high-quality bonds matching expected Plan benefit payments. The expected return on Plan assets was based upon the target asset allocation and investment return estimates for the Plan's equity and fixed income securities. In establishing this assumption, the Company considers many factors including both the historical rate of return and projected inflation-adjusted real rate of return on the Plan's various asset classes and the expected working lifetime for Plan participants.

Components of net pension income that were recorded within the Company's Consolidated Statements of Operations are as follows (in thousands):



	Year ended October 31,
	2015		2014		2013
Expected return on plan assets		$738		$739		$320
Interest cost	561		610		236
Net pension income		$177		$129		$84

The Company anticipates making contributions of $.4 million to the Plan during fiscal 2016. Estimated future benefit payments to be made during each of the next five fiscal years and in aggregate during the succeeding five fiscal years are as follows (in thousands):



Year ending October 31,
2016		$914
2017	907
2018	883
2019	915
2020	918
2021-2025	4,436

The fair value of the Plan's assets are set forth by level within the fair value hierarchy in the following tables (in thousands):



	As of October 31, 2015
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Fixed income securities		$5,372		$—		$—		$5,372
Equity securities	5,280		—		—		5,280
Money market funds and cash	115		—		—		115
		$10,767		$—		$—		$10,767



	As of October 31, 2014
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Fixed income securities		$5,563		$—		$—		$5,563
Equity securities	5,678		—		—		5,678
Money market funds and cash	118		—		—		118
		$11,359		$—		$—		$11,359

Fixed income securities consist of investments in mutual funds. Equity securities consist of investments in common stocks, mutual funds and exchange traded funds.

The Plan's actual and targeted asset allocations by investment category are as follows:



	As of October 31,
	2015				2014
	Actual		Target		Actual		Target
Fixed income securities	50	%	50	%	49	%	50	%
Equity securities	49	%	50	%	50	%	50	%
Money market funds and cash	1	%	—	%	1	%	—	%
	100	%	100	%	100	%	100	%

- Definition

The entire disclosure for pension and other postretirement benefits.

+ References+ Details

REDEEMABLE NONCONTROLLING INTERESTS

12 Months Ended

Oct. 31, 2015

Temporary Equity Redeemable Noncontrolling Interests [Abstract]

Temporary Equity Redeemable Noncontrolling Interests [Text Block]

REDEEMABLE NONCONTROLLING INTERESTS

The holders of equity interests in certain of the Company’s subsidiaries have rights (“Put Rights”) that may be exercised on varying dates causing the Company to purchase their equity interests through fiscal 2025. The Put Rights, all of which relate either to common shares or membership interests in limited liability companies, provide that the cash consideration to be paid for their equity interests (the “Redemption Amount”) be at fair value or at a formula that management intended to reasonably approximate fair value based solely on a multiple of future earnings over a measurement period. As of October 31, 2015, management’s estimate of the aggregate Redemption Amount of all Put Rights that the Company would be required to pay is approximately $91.3 million. The actual Redemption Amount will likely be different. The aggregate Redemption Amount of all Put Rights was determined using probability adjusted internal estimates of future earnings of the Company’s subsidiaries with Put Rights while considering the earliest exercise date, the measurement period and any applicable fair value adjustments. The portion of the estimated Redemption Amount as of October 31, 2015 redeemable at fair value is approximately $76.9 million and the portion redeemable based solely on a multiple of future earnings is approximately $14.4 million.

A summary of the Put Rights associated with the redeemable noncontrolling interests in certain of the Company’s subsidiaries is as follows as of October 31, 2015:



Subsidiary Acquisition Year	Operating Segment	Company Ownership Interest	Earliest Put Right Year	Purchase Period Years
2005	ETG	95.9%	2016 ⁽¹⁾	4 ⁽²⁾
2006	FSG	80.1%	2016 ⁽¹⁾	4
2008	FSG	82.3%	2016	5
2009	ETG	82.5%	2016 ⁽¹⁾	1
2011	FSG	80.1%	2016 ⁽¹⁾	2
2012	ETG	78.0%	2017	2
2012	FSG	84.0%	2018	4
2012	FSG	80.1%	2019	4
2015	FSG	80.0%	2019	4
2015	FSG	80.1%	2020	4
2015	FSG	80.1%	2022	4
2015	ETG	80.1%	2020	2


⁽¹⁾Currently puttable
⁽²⁾A portion is to be purchased in a lump sum

The aggregate Redemption Amount of the Put Rights that are currently puttable or becoming puttable during fiscal 2016 is approximately $35.0 million, of which approximately $20.1 million would be payable in fiscal 2016 should all of the eligible associated noncontrolling interest holders elect to exercise their Put Rights during fiscal 2016. As of October 31, 2015, none of the holders of equity interests in any of the above Company subsidiaries has exercised their Put Right to cause the Company to purchase their current equity interest. Additionally, the Company has call rights to purchase the equity interests of the noncontrolling holders over the same period.

The Company acquired an 80.1% interest in a subsidiary through the ETG in fiscal 2004. As part of the purchase agreement, the noncontrolling interest holders had the right to cause the Company to purchase their interests over a five-year period. During fiscal 2014, the noncontrolling interest holders' Put Right expired, resulting in a reclassification of the Redemption Amount from redeemable noncontrolling interests (temporary equity) to noncontrolling interests (permanent equity). Additionally, the Company has the right to purchase the noncontrolling interests over a five-year period.

Pursuant to the purchase agreement related to the acquisition of a 51% interest in a subsidiary by the FSG in fiscal 2006, the noncontrolling interest holders exercised their option to cause the Company to purchase an aggregate 35.7% interest during fiscal years 2011 and 2012 and the remaining 13.3% interest in fiscal 2013. During fiscal 2014, the Company paid a purchase price adjustment for the portion of the redeemable noncontrolling interests acquired in fiscal 2013 that was based on the acquired entity's actual fiscal 2013 earnings.

The purchase price of the redeemable noncontrolling interests acquired in fiscal 2014 was paid using cash provided by operating activities. The purchase price of the redeemable noncontrolling interests acquired in fiscal 2013 was paid using proceeds from the Company's revolving credit facility. The aggregate cost of the redeemable noncontrolling interests acquired in fiscal 2014 and 2013 was $1.2 million and $16.6 million, respectively.

NET INCOME PER SHARE ATTRIBUTABLE TO HEICO SHAREHOLDERS

12 Months Ended

Oct. 31, 2015

Earnings Per Share [Abstract]

Earnings Per Share [Text Block]

NET INCOME PER SHARE ATTRIBUTABLE TO HEICO SHAREHOLDERS

The computation of basic and diluted net income per share attributable to HEICO shareholders is as follows (in thousands, except per share data):



	Year ended October 31,
	2015		2014		2013
Numerator:
Net income attributable to HEICO		$133,364		$121,293		$102,396

Denominator:
Weighted average common shares outstanding - basic	66,740		66,463		66,298
Effect of dilutive stock options	1,071		990		684
Weighted average common shares outstanding - diluted	67,811		67,453		66,982

Net income per share attributable to HEICO shareholders:
Basic		$2.00		$1.82		$1.54
Diluted		$1.97		$1.80		$1.53

Anti-dilutive stock options excluded	412		430		754

- Definition

The entire disclosure for earnings per share.

+ References+ Details

QUARTERLY FINANCIAL INFORMATION (UNAUDITED)

12 Months Ended

Oct. 31, 2015

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Information [Text Block]

QUARTERLY FINANCIAL INFORMATION (UNAUDITED)



(in thousands, except per share data)	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
Net sales:
2015		$268,185		$291,421		$300,370		$328,672
2014		$266,826		$282,232		$291,030		$292,223
Gross profit:
2015		$93,797		$105,494		$108,092		$126,796
2014		$92,117		$99,922		$103,327		$102,946
Net income from consolidated operations:
2015		$32,091		$38,504		$38,938		$44,031
2014		$32,562		$32,780		$37,352		$36,078
Net income attributable to HEICO:
2015		$27,640		$33,105		$34,369		$38,250
2014		$27,455		$28,367		$33,366		$32,105
Net income per share attributable to HEICO:
Basic:
2015		$.42		$.50		$.51		$.57
2014		$.41		$.43		$.50		$.48
Diluted:
2015		$.41		$.49		$.51		$.56
2014		$.41		$.42		$.49		$.48

During the first quarter of fiscal 2015, the Company recognized an income tax credit for qualified R&D activities for the last ten months of fiscal 2014 upon the retroactive extension of the U.S. federal R&D tax credit in December 2014 to cover calendar year 2014. The tax credit, net of expenses, increased net income attributable to HEICO by $1.8 million, or $.03 per basic and diluted share.

During the fourth quarter of fiscal 2014, the Company recorded a reduction in accrued contingent consideration related to a fiscal 2012 acquisition that was partially offset by impairment losses related to the write-down of certain intangible assets at the acquired business resulting in an increase in net income attributable to HEICO of approximately $1.7 million, or $.03 per basic and diluted share.

During the third quarter of fiscal 2014, the Company recorded a reduction in accrued contingent consideration related to a fiscal 2013 acquisition that was partially offset by impairment losses related to the write-down of certain intangible assets and lower than expected operating income at the acquired business resulting in an increase in net income attributable to HEICO of approximately $3.4 million, or $.05 per basic and diluted share.

During the first quarter of fiscal 2014, the Company recorded a reduction in accrued contingent consideration related to a fiscal 2013 acquisition that was partially offset by lower than expected operating income at the acquired business resulting in an increase in net income attributable to HEICO of approximately $2.6 million, or $.04 per basic and diluted share.

Due to changes in the average number of common shares outstanding, net income per share attributable to HEICO for the full fiscal year may not equal the sum of the four individual quarters.

- Definition

The entire disclosure for the quarterly financial data in the annual financial statements. The disclosure may include a tabular presentation of financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income or loss before extraordinary items and earnings per share data. It also includes an indication if the information in the note is unaudited, comments on the aggregate effect of year-end adjustments, and an explanation of matters or transactions that affect comparability or are pertinent to an understanding of the information furnished.

+ References+ Details

OPERATING SEGMENTS

12 Months Ended

Oct. 31, 2015

Segment Reporting [Abstract]

Segment Reporting Disclosure [Text Block]

OPERATING SEGMENTS

The Company has two operating segments: the Flight Support Group (“FSG”), consisting of HEICO Aerospace and HEICO Flight Support Corp. and their collective subsidiaries; and the Electronic Technologies Group (“ETG”), consisting of HEICO Electronic and its subsidiaries. The Company's operating segment reporting structure is consistent with how management reviews the business, makes investing and resource decisions and assesses operating performance. Additionally, characteristics such as similarity of products, customers, economic characteristics and various other factors are considered when identifying the Company's operating segments. The FSG designs, manufactures, repairs, overhauls and distributes jet engine and aircraft component replacement parts. The parts and services are approved by the FAA. The FSG also manufactures and sells specialty parts as a subcontractor for aerospace and industrial original equipment manufacturers and the U.S. government. Additionally, the FSG is a leading supplier, distributor, and integrator of military aircraft parts and support services primarily to foreign military organizations allied with the U.S. and is a leading manufacturer of advanced niche components and complex composite assemblies for commercial aviation, defense and space applications. The ETG designs and manufactures electronic, microwave, and electro-optical equipment and components, three-dimensional microelectronic and stacked memory products, high-speed interface products, high voltage interconnection devices, high voltage advanced power electronics products, power conversion products, underwater locator beacons, electromagnetic interference shielding, traveling wave tube amplifiers, harsh environment electronic connectors and other interconnect products, communications and electronic intercept receivers and tuners, and RF and microwave amplifiers, transmitters, receivers and satellite microwave modules, and integrated subsystems primarily for the aviation, defense, space, medical, telecommunications and electronics industries.

The Company’s reportable operating segments offer distinctive products and services that are marketed through different channels. They are managed separately because of their unique technology and service requirements.

Segment Profit or Loss

The accounting policies of the Company’s operating segments are the same as those described in Note 1, Summary of Significant Accounting Policies. Management evaluates segment performance based on segment operating income.

Information on the Company’s two operating segments, the FSG and the ETG, for each of the last three fiscal years ended October 31 is as follows (in thousands):



	Segment				Other, Primarily Corporate and Intersegment			Consolidated Totals
	FSG		ETG		Other, Primarily Corporate and Intersegment			Consolidated Totals
Year ended October 31, 2015:
Net sales		$809,700		$390,982		($12,034	)		$1,188,648
Depreciation	10,859		6,803		168			17,830
Amortization	13,470		15,945		662			30,077
Operating income	149,798		98,833		(18,975		)	229,656
Capital expenditures	11,737		6,201		311			18,249
Total assets	868,218		746,018		122,151			1,736,387

Year ended October 31, 2014:
Net sales		$762,801		$379,404		($9,894	)		$1,132,311
Depreciation	9,809		7,113		146			17,068
Amortization	10,034		19,993		662			30,689
Operating income	136,480		88,914		(22,006		)	203,388
Capital expenditures	9,437		6,327		646			16,410
Total assets	676,824		703,144		109,246			1,489,214

Year ended October 31, 2013:
Net sales		$665,148		$350,033		($6,424	)		$1,008,757
Depreciation	7,997		5,242		133			13,372
Amortization	6,617		16,150		651			23,418
Operating income	122,058		83,063		(21,531		)	183,590
Capital expenditures	10,190		7,748		390			18,328
Total assets	679,839		759,807		93,369			1,533,015

Major Customer and Geographic Information

The Company markets its products and services in approximately 100 countries. The following table summarizes the Company’s net sales to customers located in the United States and to those in other countries for each of the last three fiscal years ended October 31 (in thousands). Net sales are attributed to countries based on the location of the customer. Net sales to any one customer or originating from any one country did not account for 10% or more of the Company’s consolidated net sales during any of the last three fiscal years. The following table also summarizes the Company’s long-lived assets held within and outside of the United States as of October 31 of the last three fiscal years (in thousands). Long-lived assets consist of net property, plant and equipment.



	2015		2014		2013
Net Sales:
United States of America		$785,567		$754,616		$654,096
Other countries	403,081		377,695		354,661
Total net sales		$1,188,648		$1,132,311		$1,008,757

Long-lived assets:
United States of America		$85,253		$84,116		$87,247
Other countries	20,417		9,749		10,490
Total long-lived assets		$105,670		$93,865		$97,737

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 280

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8380-108599

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 280

-SubTopic 10

-Section 50

-Paragraph 32

-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8933-108599

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 280

-SubTopic 10

-Section 50

-Paragraph 10

-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8538-108599

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 280

-SubTopic 10

-Section 50

-Paragraph 26

-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8844-108599

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 280

-SubTopic 10

-Section 50

-Paragraph 29

-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8864-108599

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 280

-SubTopic 10

-Section 50

-Paragraph 34

-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8981-108599

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 280

-SubTopic 10

-Section 50

-Paragraph 35

-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8984-108599

Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 280

-SubTopic 10

-Section 50

-Paragraph 41

-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599

Reference 9: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 280

-SubTopic 10

-Section 50

-Paragraph 30

-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8906-108599

Reference 10: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 280

-SubTopic 10

-Section 50

-Paragraph 42

-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9054-108599

Reference 11: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 280

-SubTopic 10

-Section 50

-Paragraph 31

-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8924-108599

Reference 12: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 280

-SubTopic 10

-Section 50

-Paragraph 40

-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9031-108599

Reference 13: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 280

-SubTopic 10

-Section 50

-Paragraph 33

-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8971-108599

Reference 14: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 280

-SubTopic 10

-Section 50

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8595-108599

+ Details

COMMITMENTS AND CONTINGENCIES

12 Months Ended

Oct. 31, 2015

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies Disclosure [Text Block]

COMMITMENTS AND CONTINGENCIES

Lease Commitments

The Company leases certain property and equipment, including manufacturing facilities and office equipment under operating leases. Some of these leases provide the Company with the option after the initial lease term either to purchase the property at the then fair market value or renew the lease at the then fair rental value. Generally, management expects that leases will be renewed or replaced by other leases in the normal course of business.

Future minimum payments under non-cancelable operating leases for the next five fiscal years and thereafter are estimated to be as follows (in thousands):



Year ending October 31,
2016		$10,526
2017	8,202
2018	4,479
2019	2,509
2020	2,063
Thereafter	8,943
Total minimum lease commitments		$36,722

Total rent expense charged to operations for operating leases in fiscal 2015, 2014 and 2013 amounted to $11.9 million, $11.2 million and $9.8 million, respectively.

Guarantees

As of October 31, 2015, the Company has arranged for standby letters of credit aggregating $2.7 million, which are supported by its revolving credit facility. One letter of credit in the amount of $1.5 million is to satisfy the security requirement of the insurance company used by the Company for potential workers' compensation claims and the remainder pertain to performance guarantees related to customer contracts entered into by certain of the Company's subsidiaries.

Product Warranty

Changes in the Company’s product warranty liability in fiscal 2015 and 2014 are as follows (in thousands):



	Year ended October 31,
	2015			2014
Balances as of beginning of year		$4,079			$3,233
Accruals for warranties	1,215			3,005
Acquired warranty liabilities	35			—
Warranty claims settled	(2,126		)	(2,159		)
Balances as of end of year		$3,203			$4,079

Litigation

The Company is involved in various legal actions arising in the normal course of business. Based upon the Company’s and its legal counsel’s evaluations of any claims or assessments, management is of the opinion that the outcome of these matters will not have a material adverse effect on the Company’s results of operations, financial position or cash flows.

- Definition

The entire disclosure for commitments and contingencies.

+ References+ Details

SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION

12 Months Ended

Oct. 31, 2015

Supplemental Cash Flow Elements [Abstract]

Cash Flow, Supplemental Disclosures [Text Block]

SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION

The following table presents supplemental disclosures of cash flow information and non-cash investing activities for fiscal 2015, 2014 and 2013 (in thousands):



	Year ended October 31,
	2015			2014			2013
Cash paid for income taxes		$76,021			$72,723			$62,631
Cash received from income tax refunds	(1,211		)	(395		)	(33		)
Cash paid for interest	4,598			5,550			3,514
Contingent consideration	21,355			—			20,654
Additional purchase consideration	(204		)	(56		)	2,068
Property, plant and equipment acquired through capital lease obligations	59			131			—

VALUATION AND QUALIFYING ACCOUNTS

12 Months Ended

Oct. 31, 2015

Valuation and Qualifying Accounts [Abstract]

Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]

SCHEDULE II – VALUATION AND QUALIFYING ACCOUNTS



	Year ended October 31,
	2015			2014			2013
Allowance for doubtful accounts (in thousands):
Allowance as of beginning of year		$2,143			$3,096			$2,334
Additions (deductions) charged (credited) to costs and expenses	248			(232		)	586
Additions (deductions) charged to other accounts^(a)	55			(31		)	303
Deductions ^(b)	(408		)	(690		)	(127		)
Allowance as of end of year		$2,038			$2,143			$3,096


(a)	Principally additions from acquisitions and foreign currency translation adjustments.


(b)	Principally write-offs of uncollectible accounts receivable, net of recoveries.



	Year ended October 31,
	2015			2014			2013
Inventory valuation reserves (in thousands):
Reserves as of beginning of year		$60,608			$54,577			$46,861
Additions charged to costs and expenses	7,779			9,398			8,032
Additions (deductions) charged to other accounts ^(a)	4,598			(322		)	3,148
Deductions ^(b)	(3,331		)	(3,045		)	(3,464		)
Reserves as of end of year		$69,654			$60,608			$54,577


(a)	Principally additions from acquisitions and foreign currency translation adjustments


(b)	Principally write-offs of slow-moving, obsolete or damaged inventory.

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)

12 Months Ended

Oct. 31, 2015

Summary Of Significant Accounting Policies (Policies) [Abstract]

Nature Of Business, Policy [Policy Text Block]

Nature of Business

Basis Of Presentation, Policy [Policy Text Block]

Basis of Presentation

Use of Estimates and Assumptions, Policy [Policy Text Block]

Use of Estimates and Assumptions

Cash and Cash Equivalents, Policy [Policy Text Block]

Cash and Cash Equivalents

Accounts Receivable, Policy [Policy Text Block]

Accounts Receivable

Concentrations Of Credit Risk, Policy [Policy Text Block]

Concentrations of Credit Risk

Inventory, Policy [Policy Text Block]

Inventory

Property, Plant and Equipment, Policy [Policy Text Block]

Property, Plant and Equipment

Capital Leases, Policy [Policy Text Block]

Capital Leases

Business Combinations, Policy [Policy Text Block]

Business Combinations

Goodwill and Other Intangible Assets, Policy [Policy Text Block]

Goodwill and Other Intangible Assets



Customer relationships	7	to	12	years
Intellectual property	7	to	15	years
Licenses	10	to	17	years
Non-compete agreements	2	to	7	years
Patents	5	to	20	years
Trade names	8	to	10	years

Investments, Policy [Policy Text Block]

Investments

Customer Rebates and Credits, Policy [Policy Text Block]

Customer Rebates and Credits

Product Warranties, Policy [Policy Text Block]

Product Warranties

Defined Benefit Pension Plan, Policy [Policy Text Block]

Defined Benefit Pension Plan

Revenue Recognition, Policy [Policy Text Block]

Revenue Recognition

Stock-Based Compensation, Policy [Policy Text Block]

Stock-Based Compensation

Income Taxes, Policy [Policy Text Block]

Income Taxes

Redeemable Noncontrolling Interests, Policy [Policy Text Block]

Redeemable Noncontrolling Interests

Net Income per Share Attributable to HEICO Shareholders, Policy [Policy Text Block]

Net Income per Share Attributable to HEICO Shareholders

Foreign Currency Translation, Policy [Policy Text Block]

Foreign Currency

Contingencies, Policy [Policy Text Block]

Contingencies

New Accounting Pronouncements, Policy [Policy Text Block]

New Accounting Pronouncements

ACQUISITIONS (Tables)

12 Months Ended

Oct. 31, 2015

Business Acquisition [Line Items]

Schedule of Pro Forma Information [Table Text Block]

The following table presents unaudited pro forma financial information for fiscal 2015 and fiscal 2014 as if the Company's fiscal 2015 acquisitions had occurred as of November 1, 2013 (in thousands):



	Year ended October 31,
	2015		2014
Net sales		$1,244,911		$1,228,987
Net income from consolidated operations		$163,012		$150,412
Net income attributable to HEICO		$140,771		$130,539
Net income per share attributable to HEICO shareholders:
Basic		$2.11		$1.96
Diluted		$2.08		$1.94

Other Acquisitions [Member]

Business Acquisition [Line Items]

Schedule of Fair Value of Total Consideration [Table Text Block]

The following table summarizes the aggregate total consideration for the Company's other acquisitions (in thousands):



	Year ended October 31,
	2015			2014			2013
Cash paid		$171,829			$6,759			$91,647
Less: cash acquired	(5,062		)	—			(3,185		)
Cash paid, net	166,767			6,759			88,462
Contingent purchase consideration	21,355			—			20,654
Additional purchase consideration	(204		)	(56		)	569
Total consideration		$187,918			$6,703			$109,685

Schedule of Purchase Price Allocation [Table Text Block]



	Year ended October 31,
	2015		2014		2013
Assets acquired:
Identifiable intangible assets		$102,981		$3,400		$39,843
Goodwill	89,144		2,552		68,095
Inventories	17,254		247		3,112
Property, plant and equipment	16,280		248		6,286
Accounts receivable	10,719		256		9,233
Other assets	2,594		12		2,565
Total assets acquired, excluding cash	238,972		6,715		129,134

Liabilities assumed:
Deferred income taxes	6,788		—		13,857
Accounts payable	4,845		—		1,746
Accrued expenses	2,576		12		3,846
Other liabilities	621		—		—
Total liabilities assumed	14,830		12		19,449

Noncontrolling interests in consolidated subsidiaries	36,224		—		—

Net assets acquired, excluding cash		$187,918		$6,703		$109,685

Heico Flight Support Corp [Member] | Reinhold Industries [Member]

Business Acquisition [Line Items]

Schedule of Fair Value of Total Consideration [Table Text Block]

The following table summarizes the total consideration for the acquisition of Reinhold (in thousands):



Cash paid		$141,014
Less: cash acquired	(8,041		)
Cash paid, net	132,973
Additional purchase consideration	1,499
Total consideration		$134,472

Schedule of Purchase Price Allocation [Table Text Block]



Assets acquired:
Goodwill		$76,424
Identifiable intangible assets	66,500
Inventories	10,753
Accounts receivable	8,830
Property, plant and equipment	7,994
Other assets	2,756
Total assets acquired, excluding cash	173,257

Liabilities assumed:
Deferred income taxes	25,613
Accrued expenses	6,994
Accounts payable	2,923
Defined benefit pension plan obligation, net	2,865
Other liabilities	390
Total liabilities assumed	38,785
Net assets acquired, excluding cash		$134,472

SELECTED FINANCIAL STATEMENT INFORMATION (Tables)

12 Months Ended

Oct. 31, 2015

Selected Financial Statement Information [Abstract]

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

Accounts Receivable



	As of October 31,
(in thousands)	2015			2014
Accounts receivable		$183,631			$151,812
Less: Allowance for doubtful accounts	(2,038		)	(2,143		)
Accounts receivable, net		$181,593			$149,669

Costs And Estimated Earnings On Uncompleted Percentage Of Completion Contracts [Table Text Block]

Costs and Estimated Earnings on Uncompleted Percentage-of-Completion Contracts



	As of October 31,
(in thousands)	2015			2014
Costs incurred on uncompleted contracts		$22,645			$24,437
Estimated earnings	16,116			11,747
	38,761			36,184
Less: Billings to date	(36,442		)	(29,829		)
		$2,319			$6,355
Included in the accompanying Consolidated Balance Sheets under the following captions:
Accounts receivable, net (costs and estimated earnings in excess of billings)		$6,263			$8,161
Accrued expenses and other current liabilities (billings in excess of costs and estimated earnings)	(3,944		)	(1,806		)
		$2,319			$6,355

Schedule of Inventory, Current [Table Text Block]

Inventories



	As of October 31,
(in thousands)	2015			2014
Finished products		$119,262			$106,229
Work in process	32,201			30,056
Materials, parts, assemblies and supplies	89,739			79,163
Contracts in process	4,521			2,594
Less: Billings to date	(2,206		)	—
Inventories, net of valuation reserves		$243,517			$218,042

Property, Plant and Equipment [Table Text Block]

Property, Plant and Equipment



	As of October 31,
(in thousands)	2015			2014
Land		$5,060			$4,501
Buildings and improvements	70,626			60,332
Machinery, equipment and tooling	152,022			139,963
Construction in progress	4,668			6,905
	232,376			211,701
Less: Accumulated depreciation and amortization	(126,706		)	(117,836		)
Property, plant and equipment, net		$105,670			$93,865

Schedule Of Accrued Expenses and Other Current Liabilities [Table Text Block]

Accrued Expenses and Other Current Liabilities



	As of October 31,
(in thousands)	2015		2014
Accrued employee compensation and related payroll taxes		$53,238		$52,480
Deferred revenue	16,498		12,481
Accrued customer rebates and credits	8,072		10,924
Accrued additional purchase consideration	6,859		90
Other	15,488		16,603
Accrued expenses and other current liabilities		$100,155		$92,578

Schedule of Research and Development Expenses [Table Text Block]

The amount of new product research and development ("R&D") expenses included in cost of sales is as follows (in thousands):



	Year ended October 31,
	2015		2014		2013
R&D expenses		$38,747		$37,377		$32,897

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

Changes in the components of accumulated other comprehensive income (loss) during fiscal 2015 and 2014 are as follows (in thousands):



	Foreign Currency Translation			Pension Benefit Obligation			Accumulated Other Comprehensive Income (Loss)
Balances as of October 31, 2013		($466	)		$610			$144
Unrealized loss	(7,882		)	(551		)	(8,433		)
Balances as of October 31, 2014	(8,348		)	59			(8,289		)
Unrealized loss	(16,020		)	(771		)	(16,791		)
Balances as of October 31, 2015		($24,368	)		($712	)		($25,080	)

GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)

12 Months Ended

Oct. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill [Table Text Block]

Changes in the carrying amount of goodwill during fiscal 2015 and 2014 by operating segment are as follows (in thousands):



	Segment						Consolidated
	FSG			ETG			Totals
Balances as of October 31, 2013		$279,855			$408,634			$688,489
Goodwill acquired	2,552			—			2,552
Foreign currency translation adjustments	—			(4,797		)	(4,797		)
Adjustments to goodwill	—			27			27
Balances as of October 31, 2014	282,407			403,864			686,271
Goodwill acquired	56,441			32,703			89,144
Foreign currency translation adjustments	(1,341		)	(7,435		)	(8,776		)
Balances as of October 31, 2015		$337,507			$429,132			$766,639

Schedule Of Identifiable Intangible Assets [Table Text Block]

Identifiable intangible assets consist of (in thousands):



	As of October 31, 2015							As of October 31, 2014
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Amortizing Assets:
Customer relationships		$190,450		($63,461	)		$126,989		$144,478		($55,393	)		$89,085
Intellectual property	98,143		(22,912		)	75,231		73,005		(17,620		)	55,385
Licenses	4,200		(1,882		)	2,318		2,900		(1,645		)	1,255
Non-compete agreements	914		(914		)	—		1,020		(1,020		)	—
Patents	746		(447		)	299		712		(405		)	307
Trade names	166		(38		)	128		166		(17		)	149
	294,619		(89,654		)	204,965		222,281		(76,100		)	146,181
Non-Amortizing Assets:
Trade names	67,628		—			67,628		54,629		—			54,629
		$362,247		($89,654	)		$272,593		$276,910		($76,100	)		$200,810

LONG-TERM DEBT (Tables)

12 Months Ended

Oct. 31, 2015

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments [Table Text Block]

Long-term debt consists of the following (in thousands):



	As of October 31,
	2015			2014
Borrowings under revolving credit facility		$365,203			$326,000
Capital leases	2,395			3,109
	367,598			329,109
Less: Current maturities of long-term debt	(357		)	(418		)
		$367,241			$328,691

Schedule of Future Minimum Lease Payments for Capital Leases [Table Text Block]

The estimated future minimum lease payments of all capital leases for the next five fiscal years and thereafter are as follows (in thousands):



Year ending October 31,
2016		$455
2017	400
2018	395
2019	395
2020	358
Thereafter	753
Total minimum lease payments	2,756
Less: amount representing interest	(361		)
Present value of minimum lease payments		$2,395

- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(e),(f))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 1A

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21506-112644

Reference 9: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 7

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21521-112644

Reference 10: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21538-112644

Reference 11: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 470

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

+ Details

INCOME TAXES (Tables)

12 Months Ended

Oct. 31, 2015

Income Tax Disclosure [Abstract]

Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]

The components of income before income taxes and noncontrolling interests are as follows (in thousands):



	Year ended October 31,
	2015		2014		2013
Domestic		$206,612		$185,842		$168,643
Foreign	18,352		12,730		12,118
Income before taxes and noncontrolling interests		$224,964		$198,572		$180,761

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

The components of the provision for income taxes on income before income taxes and noncontrolling interests are as follows (in thousands):



	Year ended October 31,
	2015			2014			2013
Current:
Federal		$65,857			$63,264			$49,275
State	8,559			10,145			9,060
Foreign	4,064			3,136			3,650
	78,480			76,545			61,985
Deferred:
Federal	(4,459		)	(14,000		)	(4,786		)
State	(1,907		)	(2,871		)	(467		)
Foreign	(714		)	126			(532		)
	(7,080		)	(16,745		)	(5,785		)
Total income tax expense		$71,400			$59,800			$56,200

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

A reconciliation of the federal statutory income tax rate to the Company’s effective tax rate is as follows:



	Year ended October 31,
	2015		2014		2013
Federal statutory income tax rate	35.0	%	35.0	%	35.0	%
State taxes, net of federal income tax benefit	2.4		2.9		3.1
Research and development tax credits	(1.9	)	(1.2	)	(2.6	)
Noncontrolling interests’ share of income	(1.3	)	(1.0	)	(1.3	)
Domestic production activities tax deduction	(1.2	)	(1.6	)	(1.2	)
Foreign taxes, where permanently reinvested outside of the U.S.	(.8	)	—		—
Nontaxable reduction in accrued contingent consideration	(.2	)	(3.4	)	—
Tax-exempt losses (gains) on corporate owned life insurance policies	.1		(.6	)	(1.4	)
Other, net	(.4	)	—		(.5	)
Effective tax rate	31.7	%	30.1	%	31.1	%

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

Significant components of the Company’s deferred tax assets and liabilities are as follows (in thousands):



	As of October 31,
	2015			2014
Deferred tax assets:
Deferred compensation liability		$31,520			$27,568
Inventories	24,912			23,099
Share-based compensation	9,333			7,427
Bonus accrual	3,791			4,031
Deferred revenue	2,005			2,660
Vacation accrual	1,836			1,724
R&D related carryforward	1,826			2,068
Customer rebates accrual	1,236			1,635
Other	7,450			8,258
Total deferred tax assets	83,909			78,470

Deferred tax liabilities:
Goodwill and other intangible assets	(148,448		)	(144,381		)
Property, plant and equipment	(7,667		)	(9,090		)
Other	(2,005		)	(880		)
Total deferred tax liabilities	(158,120		)	(154,351		)
Net deferred tax liability		($74,211	)		($75,881	)

The net deferred tax liability is classified in the Company’s Consolidated Balance Sheets as follows (in thousands):



	As of October 31,
	2015			2014
Current asset		$35,530			$34,485
Long-term asset	847			1,063
Long-term liability	(110,588		)	(111,429		)
Net deferred tax liability		($74,211	)		($75,881	)

Summary of Income Tax Contingencies [Table Text Block]

A reconciliation of the activity related to the liability for gross unrecognized tax benefits during the fiscal years ended October 31, 2015 and 2014 is as follows (in thousands):



	Year ended October 31,
	2015			2014
Balances as of beginning of year		$879			$1,072
Increases related to current year tax positions	279			138
Increases related to prior year tax positions	30			10
Decreases related to prior year tax positions	(80		)	—
Settlements	(118		)	(22		)
Lapse of statutes of limitations	(203		)	(319		)
Balances as of end of year		$787			$879

- Definition

Tabular disclosure of tax positions taken in the tax returns filed or to be filed for which it is more likely than not that the tax position will not be sustained upon examination by taxing authorities (i.e., uncertain tax positions) and other types of income tax contingencies, including: (1) the policy on classification of interest and penalties; (2) a tabular reconciliation of the total amounts of unrecognized tax benefits at the beginning and end of the period; the total amount(s) of: (3) unrecognized tax benefits that, if recognized, would affect the effective tax rate, and (4) interest and penalties recognized in each of the income statement and balance sheet; (5) for positions for which it is reasonably possible that the total amounts unrecognized will significantly change within 12 months of the reporting date the: (i) nature of the uncertainty, (ii) nature of the event that could occur that would cause the change, and (iii) an estimate of the range of the reasonably possible change or a statement that an estimate of the range cannot be made; and (6) a description of tax years that remain subject to examination by major tax jurisdictions.

+ References+ Details

FAIR VALUE MEASUREMENTS (Tables)

12 Months Ended

Oct. 31, 2015

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

The Company's assets and liabilities that were measured at fair value on a recurring basis are set forth by level within the fair value hierarchy in the following tables (in thousands):



	As of October 31, 2015
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Assets:
Deferred compensation plans:
Corporate owned life insurance		$—		$73,238		$—		$73,238
Money market funds	3,832		—		—		3,832
Equity securities	1,845		—		—		1,845
Mutual funds	1,665		—		—		1,665
Other	946		50		—		996
Total assets		$8,288		$73,288		$—		$81,576

Liabilities:
Contingent consideration		$—		$—		$21,405		$21,405



	As of October 31, 2014
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Assets:
Deferred compensation plans:
Corporate owned life insurance		$—		$61,958		$—		$61,958
Money market funds	3,974		—		—		3,974
Equity securities	2,225		—		—		2,225
Mutual funds	1,903		—		—		1,903
Other	1,339		50		—		1,389
Total assets		$9,441		$62,008		$—		$71,449

Liabilities:
Contingent consideration		$—		$—		$1,184		$1,184

Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Table Text Block]

The Level 3 inputs used to derive the estimated fair value of the Company's contingent consideration liability as of October 31, 2015 are as follows:



	Fiscal 2015 Acquisition
Compound annual revenue growth rate range	2	%	-	16%
Weighted average discount rate	2.0%

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]



	Liabilities
Balance as of October 31, 2013		$29,310
Decrease in accrued contingent consideration	(28,126		)
Balance as of October 31, 2014	1,184
Contingent consideration related to acquisition	21,355
Increase in accrued contingent consideration, net	293
Foreign currency transaction adjustments	(1,427		)
Balance as of October 31, 2015		$21,405

Included in the accompanying Consolidated Balance Sheet under the following captions:
Accrued expenses and other current liabilities		$6,686
Other long-term liabilities	14,719
		$21,405

Schedule of Impaired Intangible Assets [Table Text Block]



	Carrying Amount		Impairment Loss			Fair Value (Level 3)
Assets:
Customer relationships		$19,366		($11,200	)		$8,166
Non-amortizing trade names	10,000		(1,900		)	8,100
Intellectual property	2,302		(1,900		)	402
Impairment of intangible assets				($15,000	)

Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques [Table Text Block]

The Level 3 inputs used to derive the estimated fair values of the customer relationships, non-amortizing trade names and intellectual property during fiscal 2014 are as follows:



	Customer Relationships	Non-Amortizing Trade Names	Intellectual Property
Valuation method	Excess Earnings	Relief from Royalty	Relief from Royalty
Discount rate	15.0% - 19.0%	14.0% - 18.0%	19.0%
Annual attrition rate	25.0% - 30.0%	N/A	20.0%
Royalty rate	N/A	1.0% - 2.5%	6.0%

- Definition

Tabular disclosure of the fair value measurement of assets using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income (loss), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset.

+ References+ Details

SHARE-BASED COMPENSATION (Tables)

12 Months Ended

Oct. 31, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule Of Share Based Compensation Stock Options Activity And Shares Available For Grants [Table Text Block]

Information concerning share-based activity for each of the last three fiscal years ended October 31 is as follows (in thousands, except per share data):



			Shares Under Option
	Shares Available For Grant		Shares		Weighted Average Exercise Price
Outstanding as of October 31, 2012	2,389		2,899			$16.90
Granted	(549	)	549			$35.74
Exercised	—		(306	)		$3.78
Outstanding as of October 31, 2013	1,840		3,142			$21.48
Granted	(161	)	161			$43.37
Stock award issuance	(62	)	—			$—
Exercised	—		(39	)		$18.36
Outstanding as of October 31, 2014	1,617		3,264			$22.59
Granted	(291	)	291			$51.85
Exercised	—		(220	)		$16.85
Outstanding as of October 31, 2015	1,326		3,335			$25.52

Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding [Table Text Block]



	Options Outstanding
	Number Outstanding	Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (Years)	Aggregate Intrinsic Value
Common Stock	1,579		$23.54	4.9		$43,230
Class A Common Stock	1,756		$27.30	6.3	29,967
	3,335		$25.52	5.6		$73,197



	Options Exercisable
	Number Outstanding	Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (Years)	Aggregate Intrinsic Value
Common Stock	1,342		$19.60	4.3		$41,376
Class A Common Stock	908		$19.91	5.0	21,644
	2,250		$19.73	4.6		$63,020

Schedule of Cash Proceeds Received from Share-based Payment Awards [Table Text Block]

Information concerning stock options exercised is as follows (in thousands):



	Year ended October 31,
	2015		2014		2013
Cash proceeds from stock option exercises		$3,673		$708		$463
Tax benefit realized from stock option exercises	1,402		93		5,191
Intrinsic value of stock option exercises	6,958		929		8,033

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]



	2015				2014		2013
	Common Stock		Class A Common Stock		Class A Common Stock		Common Stock		Class A Common Stock
Expected stock price volatility	39.96	%	36.51	%	38.04	%	39.94	%	38.40	%
Risk-free interest rate	2.30	%	2.12	%	2.06	%	2.02	%	1.85	%
Dividend yield	.24	%	.32	%	.38	%	.24	%	.33	%
Forfeiture rate	.00	%	.00	%	.00	%	.00	%	.00	%
Expected option life (years)	9		7		7		9		7
Weighted average fair value	$28.46		$19.59		$17.23		$20.24		$14.29

EMPLOYEE RETIREMENT PLANS EMPLOYEE RETIREMENT PLANS (Tables)

12 Months Ended

Oct. 31, 2015

Compensation and Retirement Disclosure [Abstract]

Schedule of Other Share-based Compensation, Activity [Table Text Block]

Information concerning share-based activity pertaining to the 401(k) Plan for each of the last three fiscal years ended October 31 is as follows (in thousands):



	Common Stock		Class A Common Stock
Shares available for issuance as of October 31, 2012	170		170
Issuance of common stock to 401(k) Plan	(45	)	(45	)
Shares available for issuance as of October 31, 2013	125		125
Issuance of common stock to 401(k) Plan	(57	)	(57	)
Shares available for issuance as of October 31, 2014	68		68
Issuance of common stock to 401(k) Plan	(54	)	(54	)
Shares available for issuance as of October 31, 2015	14		14

Schedule of Changes in Projected Benefit Obligations [Table Text Block]

Changes in the Plan's projected benefit obligation and plan assets for the fiscal years ended October 31, 2015 and 2014 are as follows (in thousands):



Change in projected benefit obligation:
Projected benefit obligation as of October 31, 2013		$13,213
Actuarial loss	930
Interest cost	610
Benefits paid	(938		)
Projected benefit obligation as of October 31, 2014	13,815
Actuarial loss	716
Interest cost	561
Benefits paid	(924		)
Projected benefit obligation as of October 31, 2015		$14,168

Change in plan assets:
Fair value of plan assets as of October 31, 2013		$11,397
Actual return on plan assets	764
Employer contributions	136
Benefits paid	(938		)
Fair value of plan assets as of October 31, 2014	11,359
Actual return on plan assets	254
Employer contributions	78
Benefits paid	(924		)
Fair value of plan assets as of October 31, 2015		$10,767

Funded status as of October 31, 2014		($2,456	)
Funded status as of October 31, 2015		($3,401	)

Schedule of Assumptions Used [Table Text Block]

Weighted average assumptions used to determine the projected benefit obligation are as follows:



	As of October 31,
	2015		2014
Discount rate	4.47	%	4.20	%

Weighted average assumptions used to determine net pension income are as follows:



	Year ended October 31,
	2015		2014		2013
Discount rate	4.20	%	4.79	%	3.99	%
Expected return on plan assets	6.75	%	6.75	%	6.75	%

Schedule of Net Benefit Costs [Table Text Block]

Components of net pension income that were recorded within the Company's Consolidated Statements of Operations are as follows (in thousands):



	Year ended October 31,
	2015		2014		2013
Expected return on plan assets		$738		$739		$320
Interest cost	561		610		236
Net pension income		$177		$129		$84

Schedule of Expected Benefit Payments [Table Text Block]

Estimated future benefit payments to be made during each of the next five fiscal years and in aggregate during the succeeding five fiscal years are as follows (in thousands):



Year ending October 31,
2016		$914
2017	907
2018	883
2019	915
2020	918
2021-2025	4,436

Schedule of Allocation of Plan Assets [Table Text Block]

The fair value of the Plan's assets are set forth by level within the fair value hierarchy in the following tables (in thousands):



	As of October 31, 2015
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Fixed income securities		$5,372		$—		$—		$5,372
Equity securities	5,280		—		—		5,280
Money market funds and cash	115		—		—		115
		$10,767		$—		$—		$10,767



	As of October 31, 2014
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Fixed income securities		$5,563		$—		$—		$5,563
Equity securities	5,678		—		—		5,678
Money market funds and cash	118		—		—		118
		$11,359		$—		$—		$11,359

Fixed income securities consist of investments in mutual funds. Equity securities consist of investments in common stocks, mutual funds and exchange traded funds.

The Plan's actual and targeted asset allocations by investment category are as follows:



	As of October 31,
	2015				2014
	Actual		Target		Actual		Target
Fixed income securities	50	%	50	%	49	%	50	%
Equity securities	49	%	50	%	50	%	50	%
Money market funds and cash	1	%	—	%	1	%	—	%
	100	%	100	%	100	%	100	%

OPERATING SEGMENTS (Tables)

12 Months Ended

Oct. 31, 2015

Segment Reporting [Abstract]

Schedule of Segment Reporting Information by Segment [Table Text Block]

Information on the Company’s two operating segments, the FSG and the ETG, for each of the last three fiscal years ended October 31 is as follows (in thousands):



	Segment				Other, Primarily Corporate and Intersegment			Consolidated Totals
	FSG		ETG		Other, Primarily Corporate and Intersegment			Consolidated Totals
Year ended October 31, 2015:
Net sales		$809,700		$390,982		($12,034	)		$1,188,648
Depreciation	10,859		6,803		168			17,830
Amortization	13,470		15,945		662			30,077
Operating income	149,798		98,833		(18,975		)	229,656
Capital expenditures	11,737		6,201		311			18,249
Total assets	868,218		746,018		122,151			1,736,387

Year ended October 31, 2014:
Net sales		$762,801		$379,404		($9,894	)		$1,132,311
Depreciation	9,809		7,113		146			17,068
Amortization	10,034		19,993		662			30,689
Operating income	136,480		88,914		(22,006		)	203,388
Capital expenditures	9,437		6,327		646			16,410
Total assets	676,824		703,144		109,246			1,489,214

Year ended October 31, 2013:
Net sales		$665,148		$350,033		($6,424	)		$1,008,757
Depreciation	7,997		5,242		133			13,372
Amortization	6,617		16,150		651			23,418
Operating income	122,058		83,063		(21,531		)	183,590
Capital expenditures	10,190		7,748		390			18,328
Total assets	679,839		759,807		93,369			1,533,015

Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]

The following table also summarizes the Company’s long-lived assets held within and outside of the United States as of October 31 of the last three fiscal years (in thousands). Long-lived assets consist of net property, plant and equipment.



	2015		2014		2013
Net Sales:
United States of America		$785,567		$754,616		$654,096
Other countries	403,081		377,695		354,661
Total net sales		$1,188,648		$1,132,311		$1,008,757

Long-lived assets:
United States of America		$85,253		$84,116		$87,247
Other countries	20,417		9,749		10,490
Total long-lived assets		$105,670		$93,865		$97,737

- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

+ References+ Details

COMMITMENTS AND CONTINGENCIES (Tables)

12 Months Ended

Oct. 31, 2015

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]

Future minimum payments under non-cancelable operating leases for the next five fiscal years and thereafter are estimated to be as follows (in thousands):



Year ending October 31,
2016		$10,526
2017	8,202
2018	4,479
2019	2,509
2020	2,063
Thereafter	8,943
Total minimum lease commitments		$36,722

Schedule of Product Warranty Liability [Table Text Block]

Changes in the Company’s product warranty liability in fiscal 2015 and 2014 are as follows (in thousands):



	Year ended October 31,
	2015			2014
Balances as of beginning of year		$4,079			$3,233
Accruals for warranties	1,215			3,005
Acquired warranty liabilities	35			—
Warranty claims settled	(2,126		)	(2,159		)
Balances as of end of year		$3,203			$4,079

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2)	12 Months Ended
	Oct. 31, 2015
Customer Relationships [Member] \| Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	7 years
Customer Relationships [Member] \| Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	12 years
Intellectual Property [Member] \| Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	7 years
Intellectual Property [Member] \| Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	15 years
Licensing Agreements [Member] \| Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	10 years
Licensing Agreements [Member] \| Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	17 years
Noncompete Agreements [Member] \| Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	2 years
Noncompete Agreements [Member] \| Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	7 years
Patents [Member] \| Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	5 years
Patents [Member] \| Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	20 years
Trade Names [Member] \| Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	8 years
Trade Names [Member] \| Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	10 years

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Textuals)	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment, Depreciation Methods	Depreciation and amortization is generally provided on the straight-line method over the estimated useful lives of the various assets.
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-Lived Intangible Assets, Amortization Method	The Company’s intangible assets subject to amortization are amortized on the straight-line method (except for certain customer relationships amortized on an accelerated method) over the following estimated useful lives
Revenue Recognition [Abstract]
Percent of Revenue from Services Renderred	10.00%
Net Sales Recognized from Percentage-Of-Completion Method	4.00%	3.00%	1.00%
Heico Aerospace [Member]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Percentage of interest owned by noncontrolling shareholders	20.00%	20.00%
Noncontrolling Interest, Ownership Percentage by Parent		80.00%
Lufthansa Technik AG [Member] \| Heico Aerospace [Member]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Percentage of interest owned by noncontrolling shareholders	20.00%
Heico Flight Support Corp [Member] \| Subsidiary One [Member]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Noncontrolling Interest, Ownership Percentage by Parent	80.00%
Heico Flight Support Corp [Member] \| Subsidiary Two [Member]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Noncontrolling Interest, Ownership Percentage by Parent	84.00%
Heico Flight Support Corp [Member] \| Subsidiaries [Member]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Noncontrolling Interest, Ownership Percentage by Parent	80.10%
HEICO Electronic [Member] \| Subsidiary One [Member]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Noncontrolling Interest, Ownership Percentage by Parent	80.10%
HEICO Electronic [Member] \| Subsidiary Two [Member]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Noncontrolling Interest, Ownership Percentage by Parent	80.10%
HEICO Electronic [Member] \| Subsidiary Three [Member]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Noncontrolling Interest, Ownership Percentage by Parent	82.50%
HEICO Electronic [Member] \| Subsidiary Four [Member]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Noncontrolling Interest, Ownership Percentage by Parent	95.90%
HEICO Electronic [Member] \| Subsidiary Five [Member]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Noncontrolling Interest, Ownership Percentage by Parent	78.00%
Heico Aerospace [Member] \| Subsidiary One [Member]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Noncontrolling Interest, Ownership Percentage by Parent	80.10%
Heico Aerospace [Member] \| Subsidiary Two [Member]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Noncontrolling Interest, Ownership Percentage by Parent	82.30%
Heico Aerospace [Member] \| Joint Venture [Member]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Noncontrolling Interest, Ownership Percentage by Parent	84.00%

ACQUISITIONS ACQUISITIONS (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Business Acquisition [Line Items]
Cash paid, net	$ 166,784	$ 8,737	$ 222,638
Additional purchase consideration	(204)	(56)	2,068
Heico Flight Support Corp [Member] \| Reinhold Industries [Member]
Business Acquisition [Line Items]
Cash paid	141,014
Less: cash acquired	(8,041)
Cash paid, net	132,973
Additional purchase consideration	1,499
Total purchase consideration	$ 134,472

ACQUISITIONS (Details 1) (USD $) In Thousands, unless otherwise specified				12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2015 Heico Flight Support Corp [Member] Reinhold Industries [Member]
Assets acquired:
Goodwill	$ 766,639	$ 686,271	$ 688,489	$ 76,424
Identifiable intangible assets				66,500
Inventories				10,753
Accounts receivable				8,830
Property, plant and equipment				7,994
Other assets				2,756
Total assets acquired, excluding cash				173,257
Liabilities assumed:
Deferred income taxes				25,613
Accrued expenses				6,994
Accounts payable				2,923
Defined benefit pension plan obligation, net				2,865
Other liabilities				390
Total liabilities assumed				38,785
Net assets acquired, excluding cash				$ 134,472

ACQUISITIONS ACQUISITIONS (Details 2) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Business Acquisition [Line Items]
Cash paid, net	$ 166,784	$ 8,737	$ 222,638
Additional purchase consideration	(204)	(56)	2,068
Additional purchase consideration	(293)	28,126	1,640
Other Acquisitions [Member]
Business Acquisition [Line Items]
Cash paid	171,829	6,759	91,647
Less: cash acquired	(5,062)	0	(3,185)
Cash paid, net	166,767	6,759	88,462
Contingent purchase consideration	21,355	0	20,654
Additional purchase consideration	(204)	(56)	569
Total purchase consideration	$ 187,918	$ 6,703	$ 109,685

ACQUISITIONS ACQUISITIONS (Details 3) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Assets acquired:
Goodwill	$ 766,639	$ 686,271	$ 688,489
Other Acquisitions [Member]
Assets acquired:
Identifiable intangible assets	102,981	3,400	39,843
Goodwill	89,144	2,552	68,095
Inventories	17,254	247	3,112
Property, plant and equipment	16,280	248	6,286
Accounts receivable	10,719	256	9,233
Other assets	2,594	12	2,565
Total assets acquired, excluding cash	238,972	6,715	129,134
Liabilities assumed:
Deferred income taxes	6,788	0	13,857
Accounts payable	4,845	0	1,746
Accrued expenses	2,576	12	3,846
Other liabilities	621	0	0
Total liabilities assumed	14,830	12	19,449
Noncontrolling interests in consolidated subsidiaries	36,224	0	0
Net assets acquired, excluding cash	$ 187,918	$ 6,703	$ 109,685

ACQUISITIONS ACQUISITIONS (Details 4) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014
Business Acquisition [Line Items]
Pro Forma Revenue	$ 1,244,911	$ 1,228,987
Pro Forma Net income from consolidated operations	163,012	150,412
Pro Forma Net Income (Loss) Attributable to HEICO	$ 140,771	$ 130,539
Pro Forma Net Income (Loss) Per Share Attributable To Common Shareholders [Abstract]
Pro Forma Earnings Per Share, Basic	$ 2.11	$ 1.96
Pro Forma Earnings Per Share, Diluted	$ 2.08	$ 1.94

ACQUISITIONS (Details Textuals) (USD $)	3 Months Ended								12 Months Ended
ACQUISITIONS (Details Textuals) (USD $)	Oct. 31, 2015	Jul. 31, 2015	Apr. 30, 2015	Jan. 31, 2015	Oct. 31, 2014	Jul. 31, 2014	Apr. 30, 2014	Jan. 31, 2014	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired									$ 166,784,000	$ 8,737,000	$ 222,638,000
Net sales	328,672,000	300,370,000	291,421,000	268,185,000	292,223,000	291,030,000	282,232,000	266,826,000	1,188,648,000	1,132,311,000	1,008,757,000
Net income attributable to HEICO	38,250,000	34,369,000	33,105,000	27,640,000	32,105,000	33,366,000	28,367,000	27,455,000	133,364,000	121,293,000	102,396,000
Contingent consideration, liability	21,405,000				1,184,000				21,405,000	1,184,000
Additional Purchase Consideration Paid										2,000,000	1,200,000
FY 2015 Acquisition [Member]
Business Acquisition [Line Items]
Net sales									62,900,000
Net income attributable to HEICO									7,900,000
Reinhold Industries [Member]
Business Acquisition [Line Items]
Name of the entity in which interest is owned									Reinhold Industries, Inc.
Date on which the acquirer obtains control of the acquiree									May 31, 2013
Description of the acquired entity									Reinhold is a leading manufacturer of advanced niche components and complex composite assemblies for commercial aviation, defense and space applications.
HEICO Electronic [Member] \| Midwest Microwave Solutions [Member]
Business Acquisition [Line Items]
Name of the entity in which interest is owned									Midwest Microwave Solutions, Inc.
Date on which the acquirer obtains control of the acquiree									Aug. 31, 2015
Description of the acquired entity									MMS designs, manufactures and sells unique Size, Weight, Power and Cost (SWAP-C) optimized Communications and Electronic Intercept Receivers and Tuners for military and intelligence applications.
Percentage of interest acquired in the subsidiary	80.10%								80.10%
Percentage of interest owned by noncontrolling shareholders	19.90%								19.90%
HEICO Electronic [Member] \| Lucix Corp [Member]
Business Acquisition [Line Items]
Name of the entity in which interest is owned									Lucix Corporation
Date on which the acquirer obtains control of the acquiree									Oct. 31, 2013
Description of the acquired entity									Lucix is a leading designer and manufacturer of high performance, high reliability microwave modules, units, and integrated sub-systems for commercial and military satellites.
Amount of contingent purchase consideration, the company could be required to pay											50,000,000
Heico Flight Support Corp [Member] \| Reinhold Industries [Member]
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired									132,973,000
Cash Acquired from Acquisition									8,041,000
Net sales											30,800,000
Net income attributable to HEICO											2,800,000
Heico Flight Support Corp [Member] \| Astroseal Products Manufacturing Corp [Member]
Business Acquisition [Line Items]
Name of the entity in which interest is owned									Astroseal Products Mfg. Corporation
Date on which the acquirer obtains control of the acquiree									Aug. 31, 2015
Description of the acquired entity									Astroseal manufactures expanded foil mesh, which is integrated into composite aerospace structures for lighting strike protection in fixed and rotary wing aircraft.
Heico Flight Support Corp [Member] \| Aerospace & Commercial Technologies [Member]
Business Acquisition [Line Items]
Name of the entity in which interest is owned									Aerospace & Commercial Technologies, LLC
Date on which the acquirer obtains control of the acquiree									Aug. 31, 2015
Description of the acquired entity									ACT is a leading provider of products and services necessary to maintain up-to-date F-16 fighter aircraft operational capabilities.
Percentage of interest acquired in the subsidiary	80.10%								80.10%
Percentage of interest owned by noncontrolling shareholders	19.90%								19.90%
Heico Flight Support Corp [Member] \| TEP [Member]
Business Acquisition [Line Items]
Name of the entity in which interest is owned									Thermal Energy Products, Inc.
Date on which the acquirer obtains control of the acquiree									May 31, 2015
Description of the acquired entity									TEP engineers, designs and manufactures removable/reusable insulation systems for industrial, commercial, aerospace and defense applications.
Heico Flight Support Corp [Member] \| Harter [Member]
Business Acquisition [Line Items]
Name of the entity in which interest is owned									Harter Aerospace, LLC
Date on which the acquirer obtains control of the acquiree									Jan. 31, 2015
Description of the acquired entity									Harter is a globally recognized component and accessory maintenance, repair, and overhaul (MRO) station specializing in commercial aircraft accessories, including thrust reverse actuation systems and pneumatics, and electromechanical components.
Percentage of interest acquired in the subsidiary	80.10%								80.10%
Percentage of interest owned by noncontrolling shareholders	19.90%								19.90%
Heico Flight Support Corp [Member] \| Aeroworks [Member]
Business Acquisition [Line Items]
Name of the entity in which interest is owned									Aeroworks International Holding B.V.
Date on which the acquirer obtains control of the acquiree									Jan. 31, 2015
Description of the acquired entity									Aeroworks, which is headquartered in the Netherlands and maintains a significant portion of its production facilities in Thailand and Laos, is a manufacturer of both composite and metal parts used primarily in aircraft interior applications, including seating, galleys, lavatories, doors, and overhead bins.
Percentage of interest acquired in the subsidiary	80.00%								80.00%
Percentage of interest owned by noncontrolling shareholders	20.00%								20.00%
Heico Flight Support Corp [Member] \| Quest Aviation [Member]
Business Acquisition [Line Items]
Name of the entity in which interest is owned									Quest Aviation Supply, Inc.
Date on which the acquirer obtains control of the acquiree									Jun. 30, 2014
Description of the acquired entity									Quest Aviation is a niche supplier of parts to repair thrust reversers on various aircraft engines.
Tranche One [Member] \| HEICO Electronic [Member] \| Lucix Corp [Member]
Business Acquisition [Line Items]
Contingent consideration, liability											7,000,000
Tranche Two [Member] \| HEICO Electronic [Member] \| Lucix Corp [Member]
Business Acquisition [Line Items]
Contingent consideration, liability											$ 13,700,000

SELECTED FINANCIAL STATEMENT INFORMATION, Accounts Receivable (Details) (USD $) In Thousands, unless otherwise specified	Oct. 31, 2015	Oct. 31, 2014
Accounts receivable	$ 183,631	$ 151,812
Less: Allowance for doubtful accounts	(2,038)	(2,143)
Accounts receivable, net	$ 181,593	$ 149,669

SELECTED FINANCIAL STATEMENT INFORMATION, Costs and Estimated Earnings on Uncompleted Percentage-of-Completion Contracts (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014
Costs incurred on uncompleted contracts	$ 22,645	$ 24,437
Estimated earnings	16,116	11,747
Total cost incurred and estimated earnings on uncompleted percentage-of completed contracts	38,761	36,184
Less: Billings to date	(36,442)	(29,829)
Unbilled Contracts Receivable	2,319	6,355
Included in the accompanying Consolidated Balance Sheets under the following captions:
Accounts receivable, net (costs and estimated earnings in excess of billings)	6,263	8,161
Accrued expenses and other current liabilities (billings in excess of costs and estimated earnings)	(3,944)	(1,806)
Unbilled Contracts Receivable	$ 2,319	$ 6,355

- Definition

Liability attributable to (i) billings in excess of costs under the percentage of completion contract accounting method representing the difference between contractually invoiced amounts (billings) and revenue recognized based, for example, on costs incurred to estimated total costs at period end or (ii) contractually invoiced amounts (billings) in excess of costs incurred and accumulated under the completed contract accounting method that are expected to be realized within one year or one operating cycle, whichever is longer, from the reporting date.

+ References+ Details

SELECTED FINANCIAL STATEMENT INFORMATION, Inventories (Details) (USD $) In Thousands, unless otherwise specified	Oct. 31, 2015	Oct. 31, 2014
Finished products	$ 119,262	$ 106,229
Work in process	32,201	30,056
Materials, parts, assemblies and supplies	89,739	79,163
Contracts-in-process	4,521	2,594
Less: Billings to date	(2,206)	0
Inventories, net of valuation reserves	$ 243,517	$ 218,042

- Definition

Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.

+ References+ Details

SELECTED FINANCIAL STATEMENT INFORMATION, Property, Plant and Equipment (Details) (USD $) In Thousands, unless otherwise specified	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Property, Plant and Equipment [Line Items]
Land	$ 5,060	$ 4,501
Buildings and improvements	70,626	60,332
Machinery, equipment and tooling	152,022	139,963
Construction in progress	4,668	6,905
Property, Plant and Equipment, Gross	232,376	211,701
Less: Accumulated depreciation and amortization	(126,706)	(117,836)
Property, plant and equipment, net	$ 105,670	$ 93,865	$ 97,737

SELECTED FINANCIAL STATEMENT INFORMATION, Accrued Expenses and Other Current Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Oct. 31, 2015	Oct. 31, 2014
Accrued employee compensation and related payroll taxes	$ 53,238	$ 52,480
Deferred revenue	16,498	12,481
Accrued customer rebates and credits	8,072	10,924
Accrued additional purchase consideration	6,859	90
Other Liabilities, Current	15,488	16,603
Accrued expenses and other current liabilities	$ 100,155	$ 92,578

- Definition

Aggregate carrying amount of current liabilities (due within one year or within the normal operating cycle if longer) not separately disclosed in the balance sheet. Includes costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered and of liabilities not separately disclosed.

+ References+ Details

SELECTED FINANCIAL STATEMENT INFORMATION SELECTED FINANCIAL STATEMENT INFORMATION, Accumulated Other Comprehensive Income (Loss) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Balance Start	$ (8,289)
Unrealized loss	(17,651)	(8,433)	3,718
Accumulated Other Comprehensive Income (Loss), Balance End	(25,080)	(8,289)
Foreign Currency Translation [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Balance Start	(8,348)	(466)
Unrealized loss	(16,020)	(7,882)
Accumulated Other Comprehensive Income (Loss), Balance End	(24,368)	(8,348)
Pension Benefit Obligation [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Balance Start	59	610
Unrealized loss	(771)	(551)
Accumulated Other Comprehensive Income (Loss), Balance End	(712)	59
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Balance Start	(8,289)	144
Unrealized loss	(16,791)	(8,433)
Accumulated Other Comprehensive Income (Loss), Balance End	$ (25,080)	$ (8,289)

- Definition

Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

+ References+ Details

SELECTED FINANCIAL STATEMENT INFORMATION (Details Textuals) (USD $)	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Property, plant and equipment, net	$ 105,670,000	$ 93,865,000	$ 97,737,000
Depreciation and amortization	47,907,000	47,757,000	36,790,000
Assets under capital lease	3,700,000	4,600,000
Assets under capital lease, accumulated depreciation	700,000	1,000,000
Total customer rebates and credits deducted within net sales	4,700,000	8,300,000	8,300,000
Defined Contribution Plan, Employer Matching Contribution, Percent of Match	50.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	6.00%
Contributions to the plan charged	5,700,000	5,300,000	4,300,000
Deferred compensation plans	81,576,000	71,449,000
Costs in Excess of Billings, Current	6,263,000	8,161,000
Billings in Excess of Cost, Current	3,944,000	1,806,000
Corporate Owned Life Insurance [Member]
Deferred compensation plans	77,100,000	65,900,000
Other Deferred Compensation Plan [Member]
Employee related deferred compensation plans, specified as other long-term liabilities	4,500,000	5,500,000
Leadership Compensation Plan [Member]
Employee related deferred compensation plans, specified as other long-term liabilities	76,200,000	65,000,000
Tooling [Member]
Property, plant and equipment, net	6,500,000	6,000,000
Depreciation and amortization	2,400,000	2,400,000	2,200,000
Property, Plant and Equipment, Exclusive of Tooling [Member]
Depreciation and amortization	$ 17,800,000	$ 17,100,000	$ 13,400,000

GOODWILL AND OTHER INTANGIBLE ASSETS (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014
Goodwill [Roll Forward]
Opening Balances	$ 686,271	$ 688,489
Goodwill acquired	89,144	2,552
Foreign currency translation adjustments	(8,776)	(4,797)
Adjustments to goodwill		27
Ending Balances	766,639	686,271
Flight Support Group [Member]
Goodwill [Roll Forward]
Opening Balances	282,407	279,855
Goodwill acquired	56,441	2,552
Foreign currency translation adjustments	(1,341)	0
Adjustments to goodwill		0
Ending Balances	337,507	282,407
Electronic Technologies Group [Member]
Goodwill [Roll Forward]
Opening Balances	403,864	408,634
Goodwill acquired	32,703	0
Foreign currency translation adjustments	(7,435)	(4,797)
Adjustments to goodwill		27
Ending Balances	$ 429,132	$ 403,864

GOODWILL AND OTHER INTANGIBLE ASSETS (Details 1) (USD $) In Thousands, unless otherwise specified	Oct. 31, 2015	Oct. 31, 2014
Amortizing Assets:
Customer Relationships, Gross	$ 190,450	$ 144,478
Intellectual Property, Gross	98,143	73,005
License, Gross	4,200	2,900
Noncompete Agreements, Gross	914	1,020
Patents, Gross	746	712
Trade Names, Gross	166	166
Gross Carrying Amount	294,619	222,281
Accumulated Amortization	(89,654)	(76,100)
Amortizing Net Carrying Amount	204,965	146,181
Non-Amortizing Assets:
Indefinite-Lived Trade Names	67,628	54,629
Total Gross Carrying Amount	362,247	276,910
Total Net Carrying Amount	272,593	200,810
Customer Relationships [Member]
Amortizing Assets:
Accumulated Amortization	(63,461)	(55,393)
Amortizing Net Carrying Amount	126,989	89,085
Intellectual Property [Member]
Amortizing Assets:
Accumulated Amortization	(22,912)	(17,620)
Amortizing Net Carrying Amount	75,231	55,385
Licensing Agreements [Member]
Amortizing Assets:
Accumulated Amortization	(1,882)	(1,645)
Amortizing Net Carrying Amount	2,318	1,255
Noncompete Agreements [Member]
Amortizing Assets:
Accumulated Amortization	(914)	(1,020)
Amortizing Net Carrying Amount	0	0
Patents [Member]
Amortizing Assets:
Accumulated Amortization	(447)	(405)
Amortizing Net Carrying Amount	299	307
Trade Names [Member]
Amortizing Assets:
Accumulated Amortization	(38)	(17)
Amortizing Net Carrying Amount	$ 128	$ 149

GOODWILL AND OTHER INTANGIBLE ASSETS (Details Textuals) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Acquired Indefinite-lived Intangible Assets [Line Items]
Goodwill recognized expected tax deductible amount	$ 60	$ 3
Amortization expense related to intangible assets	27.0	27.7	20.6
Estimated Amortization expense related to intangible assets, year one	30.7
Estimated Amortization expense related to intangible assets, year two	29.8
Estimated Amortization expense related to intangible assets, year three	27.8
Estimated Amortization expense related to intangible assets, year four	25.8
Estimated Amortization expense related to intangible assets, year five	23.2
Estimated Amortization expense related to intangible assets, year, there after	$ 67.7
Customer Relationships [Member]
Acquired Indefinite-lived Intangible Assets [Line Items]
Weighted average amortization period (in years)	10 years
Intellectual Property [Member]
Acquired Indefinite-lived Intangible Assets [Line Items]
Weighted average amortization period (in years)	12 years
Licensing Agreements [Member]
Acquired Indefinite-lived Intangible Assets [Line Items]
Weighted average amortization period (in years)	11 years

LONG-TERM DEBT (Details) (USD $) In Thousands, unless otherwise specified	Oct. 31, 2015	Oct. 31, 2014
Borrowings under revolving credit facility	$ 365,203	$ 326,000
Capital leases and notes payable	2,395	3,109
Total debt and capital leases	367,598	329,109
Less: Current maturities of long-term debt	(357)	(418)
Long-term debt, net of current maturities	$ 367,241	$ 328,691

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References+ Details

LONG-TERM DEBT (Details 1) (USD $) In Thousands, unless otherwise specified	Oct. 31, 2015
Lease payments in year one	$ 455
Lease payments in year two	400
Lease payments in year three	395
Lease payments in year four	395
Lease payments in year five	358
Thereafter	753
Total minimum lease payments	2,756
Less: amount representing interest	(361)
Present value of minimum lease payments	$ 2,395

LONG-TERM DEBT (Details Textuals)	12 Months Ended		12 Months Ended				1 Months Ended	12 Months Ended			1 Months Ended	12 Months Ended
LONG-TERM DEBT (Details Textuals)	Oct. 31, 2015 USD ($)	Oct. 31, 2014 USD ($)	Oct. 31, 2015 Minimum [Member]	Oct. 31, 2015 Maximum [Member]	Oct. 31, 2015 London Interbank Offered Rate (LIBOR) [Member]	Oct. 31, 2015 Base Rate [Member]	Dec. 31, 2011 Revolving Credit Facility [Member] USD ($)	Oct. 31, 2015 Revolving Credit Facility [Member]	Oct. 31, 2012 Revolving Credit Facility [Member]	Oct. 31, 2014 Revolving Credit Facility [Member]	Nov. 30, 2013 Amended Revolving Credit Facility1 [Member]	Oct. 31, 2015 Amended Revolving Credit Facility1 [Member] USD ($)	Oct. 31, 2015 Foreign Line of Credit [Member] USD ($)	Oct. 31, 2015 Euro Member Countries, Euro Foreign Line of Credit [Member] EUR (€)
Debt Instrument [Line Items]
Long-term Line of Credit	$ 365,203,000	$ 326,000,000
Line of Credit Facility, Initiation Date							Dec. 31, 2011		Dec. 31, 2012		Nov. 30, 2013
Credit Facility [Abstract]
Credit Facility, Expiration Date								Dec. 31, 2017				Dec. 31, 2018
Credit Facility, Current Borrowing Capacity							670,000,000					800,000,000
Line of Credit Facility Change in Borrowing Capacity												200,000,000
Credit Facility, Maximum Borrowing Capacity												1,000,000,000	50,000,000
Credit facility, interest rate description	Advances under the Credit Facility accrue interest at the Company’s choice of the “Base Rate” or the London Interbank Offered Rate (“LIBOR”) plus the applicable margin (based on the Company’s ratio of total funded debt to earnings before interest, taxes, depreciation and amortization, noncontrolling interests and non-cash charges, or “leverage ratio”). The Base Rate is the highest of (i) the Prime Rate; (ii) the Federal Funds rate plus .50% per annum; and (iii) the Adjusted LIBO Rate determined on a daily basis for an Interest Period of one month plus 1.00% per annum, as such capitalized terms are defined in the Credit Facility.
Credit facility interest rate range, Minimum					0.75%	0.00%
Credit facility interest rate range, Maximum					2.25%	1.25%
Credit facility unused capacity, commitment fee percentage			0.125%	0.35%
Weighted average interest rate								1.30%		1.30%
Long-term Debt													$ 35,200,000	€ 32,000,000

INCOME TAXES INCOME TAXES (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Income Tax Disclosure [Abstract]
Domestic	$ 206,612	$ 185,842	$ 168,643
Foreign	18,352	12,730	12,118
Income before taxes and noncontrolling interests	$ 224,964	$ 198,572	$ 180,761

INCOME TAXES (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Current:
Federal	$ 65,857	$ 63,264	$ 49,275
State	8,559	10,145	9,060
Foreign	4,064	3,136	3,650
Current income tax expense	78,480	76,545	61,985
Deferred:
Federal	(4,459)	(14,000)	(4,786)
State	(1,907)	(2,871)	(467)
Foreign	(714)	126	(532)
Deferred Income Tax Expense (Benefit)	(7,080)	(16,745)	(5,785)
Income tax expense	$ 71,400	$ 59,800	$ 56,200

INCOME TAXES (Details 2)	12 Months Ended
INCOME TAXES (Details 2)	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Federal statutory income tax rate	35.00%	35.00%	35.00%
State taxes, less applicable federal income tax reduction	2.40%	2.90%	3.10%
Net tax benefit on qualified research and development activities	(1.90%)	(1.20%)	(2.60%)
Net tax benefit on noncontrolling interests' share of income	(1.30%)	(1.00%)	(1.30%)
Net tax benefit on qualified domestic production activities	(1.20%)	(1.60%)	(1.20%)
Foreign taxes, where permanently reinvested outside of the U.S.	0.80%	0.00%	0.00%
Nontaxable reduction in accrued contingent consideration	(0.20%)	(3.40%)	0.00%
Net tax benefit on corporate owned life insurance policies	0.10%	(0.60%)	(1.40%)
Other, net	0.40%	0.00%	0.50%
Effective tax rate	31.70%	30.10%	31.10%

INCOME TAXES (Details 3) (USD $) In Thousands, unless otherwise specified	Oct. 31, 2015	Oct. 31, 2014
Deferred tax assets:
Deferred compensation liability	$ 31,520	$ 27,568
Inventories	24,912	23,099
Share-based compensation	9,333	7,427
Bonus accrual	3,791	4,031
Deferred revenue	2,005	2,660
Vacation accrual	1,836	1,724
R and D carryforward and credit	1,826	2,068
Customer rebates accrual	1,236	1,635
Other	7,450	8,258
Deferred Tax Assets, Gross	83,909	78,470
Deferred tax liabilities:
Goodwill and other intangible assets	(148,448)	(144,381)
Property, plant and equipment	(7,667)	(9,090)
Other	(2,005)	(880)
Total deferred tax liabilities	(158,120)	(154,351)
Net deferred tax liabilities	$ (74,211)	$ (75,881)

INCOME TAXES (Details 4) (USD $) In Thousands, unless otherwise specified	Oct. 31, 2015	Oct. 31, 2014
Current asset	$ 35,530	$ 34,485
Long-term asset	847	1,063
Long-term liability	(110,588)	(111,429)
Net deferred tax liabilities	$ (74,211)	$ (75,881)

- Definition

Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards expected to be realized or consumed within one year or operating cycle, if longer.

+ References+ Details

- Definition

Amount after allocation of valuation allowances of noncurrent deferred tax asset attributable to deductible temporary differences and carryforwards. Noncurrent assets are expected to be realized or consumed after one year (or the normal operating cycle, if longer).

+ References+ Details

INCOME TAXES (Details 5) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balances as of beginning of year	$ 879	$ 1,072
Increases related to current year tax positions	279	138
Increases related to prior year tax positions	30	10
Decreases related to prior year tax positions	(80)	0
Settlements	(118)	(22)
Lapse of statutes of limitations	(203)	(319)
Balances as of end of year	$ 787	$ 879

INCOME TAXES (Details Textuals) (USD $)	12 Months Ended
INCOME TAXES (Details Textuals) (USD $)	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Income Tax Disclosure [Abstract]
Effective Income Tax Rate, Continuing Operations	31.70%	30.10%	31.10%
Net deferred tax liability	$ (74,211,000)	$ (75,881,000)
Deferred Income Tax Expense (Benefit)	7,080,000	16,745,000	5,785,000
Gross unrecognized tax benefits related to uncertain tax positions	787,000	879,000	1,072,000
Unrecognized tax benefits that would impact effective tax rate	$ 500,000	$ 600,000

- Definition

Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.

+ References+ Details

FAIR VALUE MEASUREMENTS, Assets and liabilities, measured on recurring basis (Details 1) (USD $)	Oct. 31, 2015	Oct. 31, 2014
Assets [Abstract]
Deferred Compensation Plan Assets	$ 81,576,000	$ 71,449,000
Liabilities [Abstract]
Contingent consideration, liability	21,405,000	1,184,000
Fair Value, Inputs, Level 1 [Member]
Assets [Abstract]
Deferred Compensation Plan Assets	8,288,000	9,441,000
Liabilities [Abstract]
Contingent consideration, liability	0	0
Fair Value, Inputs, Level 2 [Member]
Assets [Abstract]
Deferred Compensation Plan Assets	73,288,000	62,008,000
Liabilities [Abstract]
Contingent consideration, liability	0	0
Fair Value, Inputs, Level 3 [Member]
Assets [Abstract]
Deferred Compensation Plan Assets	0	0
Liabilities [Abstract]
Contingent consideration, liability	21,405,000	1,184,000
Other Defined Deferred Compensation Plan [Member]
Assets [Abstract]
Deferred Compensation Plan Assets	996,000	1,389,000
Other Defined Deferred Compensation Plan [Member] \| Fair Value, Inputs, Level 1 [Member]
Assets [Abstract]
Deferred Compensation Plan Assets	946,000	1,339,000
Other Defined Deferred Compensation Plan [Member] \| Fair Value, Inputs, Level 2 [Member]
Assets [Abstract]
Deferred Compensation Plan Assets	50,000	50,000
Other Defined Deferred Compensation Plan [Member] \| Fair Value, Inputs, Level 3 [Member]
Assets [Abstract]
Deferred Compensation Plan Assets	0	0
Equity Funds [Member]
Assets [Abstract]
Deferred Compensation Plan Assets	1,665,000	1,903,000
Equity Funds [Member] \| Fair Value, Inputs, Level 1 [Member]
Assets [Abstract]
Deferred Compensation Plan Assets	1,665,000	1,903,000
Equity Funds [Member] \| Fair Value, Inputs, Level 2 [Member]
Assets [Abstract]
Deferred Compensation Plan Assets	0	0
Equity Funds [Member] \| Fair Value, Inputs, Level 3 [Member]
Assets [Abstract]
Deferred Compensation Plan Assets	0	0
Equity Securities [Member]
Assets [Abstract]
Deferred Compensation Plan Assets	1,845,000	2,225,000
Equity Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Assets [Abstract]
Deferred Compensation Plan Assets	1,845,000	2,225,000
Equity Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Assets [Abstract]
Deferred Compensation Plan Assets	0	0
Equity Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Assets [Abstract]
Deferred Compensation Plan Assets	0	0
Money Market Funds [Member]
Assets [Abstract]
Deferred Compensation Plan Assets	3,832,000	3,974,000
Money Market Funds [Member] \| Fair Value, Inputs, Level 1 [Member]
Assets [Abstract]
Deferred Compensation Plan Assets	3,832,000	3,974,000
Money Market Funds [Member] \| Fair Value, Inputs, Level 2 [Member]
Assets [Abstract]
Deferred Compensation Plan Assets	0	0
Money Market Funds [Member] \| Fair Value, Inputs, Level 3 [Member]
Assets [Abstract]
Deferred Compensation Plan Assets	0	0
Corporate Owned Life Insurance [Member]
Assets [Abstract]
Deferred Compensation Plan Assets	73,238,000	61,958,000
Corporate Owned Life Insurance [Member] \| Fair Value, Inputs, Level 1 [Member]
Assets [Abstract]
Deferred Compensation Plan Assets	0	0
Corporate Owned Life Insurance [Member] \| Fair Value, Inputs, Level 2 [Member]
Assets [Abstract]
Deferred Compensation Plan Assets	73,238,000	61,958,000
Corporate Owned Life Insurance [Member] \| Fair Value, Inputs, Level 3 [Member]
Assets [Abstract]
Deferred Compensation Plan Assets	$ 0	$ 0

FAIR VALUE MEASUREMENTS, Assets and liabilities, measured at fair value using unobservable inputs (Details 3) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014
Liabilities [Abstract]
Total liabilities	$ 751,834	$ 674,629
Fair Value, Inputs, Level 3 [Member]
Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Liabilities, Opening Balance	1,184	29,310
Contingent purchase consideration	21,355
Contingent consideration related to acquisition	293	(28,126)
Liabilities, Ending Balance	21,405	1,184
Liabilities [Abstract]
Accrued Liabilities, Current	6,686
Other Liabilities, Noncurrent	14,719
Total liabilities	21,405
Foreign Currency Gain (Loss) [Member] \| Fair Value, Inputs, Level 3 [Member]
Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Fair Value, Liabilities Measured on Recurring Basis, Change in Unrealized Gain (Loss)	$ (1,427)

FAIR VALUE MEASUREMENTS FAIR VALUE MEASUREMENTS, Assets and liabilities and related impairment losses (Details 4) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Schedule of Impairment Charges, Nonfinancial Assets and Liabilities [Line Items]
Finite-Lived Intangible Assets, Net	$ 204,965	$ 146,181
Indefinite-Lived Trade Names	67,628	54,629
Impairment of Intangible Assets (Excluding Goodwill)	0	(15,000)	0
Customer Relationships [Member]
Schedule of Impairment Charges, Nonfinancial Assets and Liabilities [Line Items]
Finite-Lived Intangible Assets, Net	126,989	89,085
Intellectual Property [Member]
Schedule of Impairment Charges, Nonfinancial Assets and Liabilities [Line Items]
Finite-Lived Intangible Assets, Net	75,231	55,385
Electronic Technologies Group [Member]
Schedule of Impairment Charges, Nonfinancial Assets and Liabilities [Line Items]
Impairment of Intangible Assets (Excluding Goodwill)		(15,000)
Electronic Technologies Group [Member] \| Customer Relationships [Member]
Schedule of Impairment Charges, Nonfinancial Assets and Liabilities [Line Items]
Impairment of Intangible Assets, Finite-lived		(11,200)
Finite-Lived Intangible Assets, Net		19,366
Electronic Technologies Group [Member] \| Intellectual Property [Member]
Schedule of Impairment Charges, Nonfinancial Assets and Liabilities [Line Items]
Impairment of Intangible Assets, Finite-lived		(1,900)
Finite-Lived Intangible Assets, Net		2,302
Trade Names [Member] \| Electronic Technologies Group [Member]
Schedule of Impairment Charges, Nonfinancial Assets and Liabilities [Line Items]
Indefinite Lived Intangible Assets, Carrying Amount		10,000
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)		(1,900)
Fair Value, Inputs, Level 3 [Member] \| Electronic Technologies Group [Member] \| Customer Relationships [Member]
Schedule of Impairment Charges, Nonfinancial Assets and Liabilities [Line Items]
Finite-Lived Intangible Assets, Net		8,166
Fair Value, Inputs, Level 3 [Member] \| Electronic Technologies Group [Member] \| Intellectual Property [Member]
Schedule of Impairment Charges, Nonfinancial Assets and Liabilities [Line Items]
Finite-Lived Intangible Assets, Net		402
Fair Value, Inputs, Level 3 [Member] \| Trade Names [Member] \| Electronic Technologies Group [Member]
Schedule of Impairment Charges, Nonfinancial Assets and Liabilities [Line Items]
Indefinite-Lived Trade Names		$ 8,100

FAIR VALUE MEASUREMENTS FAIR VALUE MEASUREMENTS, Level 3 valuation inputs (2) (Details 5)	12 Months Ended
	Oct. 31, 2015
Intellectual Property [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Annual attrition rate	20.00%
Fair Value, Inputs, Level 3 [Member] \| Customer Relationships [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Measurements, Valuation Techniques	Excess Earnings
Fair Value, Inputs, Level 3 [Member] \| Intellectual Property [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Measurements, Valuation Techniques	Relief from Royalty
Fair Value Inputs, Discount Rate	19.00%
Fair Value Inputs, Royalty Rate	6.00%
Fair Value, Inputs, Level 3 [Member] \| Trade Names [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Measurements, Valuation Techniques	Relief from Royalty
Minimum [Member] \| Fair Value, Inputs, Level 3 [Member] \| Customer Relationships [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	15.00%
Annual attrition rate	25.00%
Minimum [Member] \| Fair Value, Inputs, Level 3 [Member] \| Trade Names [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	14.00%
Fair Value Inputs, Royalty Rate	1.00%
Maximum [Member] \| Fair Value, Inputs, Level 3 [Member] \| Customer Relationships [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	19.00%
Annual attrition rate	30.00%
Maximum [Member] \| Fair Value, Inputs, Level 3 [Member] \| Trade Names [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	18.00%
Fair Value Inputs, Royalty Rate	2.50%

FAIR VALUE MEASUREMENTS (Details Textuals)	12 Months Ended					12 Months Ended					12 Months Ended						12 Months Ended
FAIR VALUE MEASUREMENTS (Details Textuals)	Oct. 31, 2015 USD ($)	Oct. 31, 2014 USD ($)	Oct. 31, 2013 USD ($)	Oct. 31, 2015 FY 2013 Acquisition [Member] Tranche One [Member] USD ($)	Oct. 31, 2013 FY 2013 Acquisition [Member] Tranche One [Member] USD ($)	Oct. 31, 2014 FY 2013 Acquisition [Member] Tranche Two [Member] USD ($)	Oct. 31, 2015 FY 2013 Acquisition [Member] Tranche Two [Member] USD ($)	Oct. 31, 2013 FY 2013 Acquisition [Member] Tranche Two [Member] USD ($)	Oct. 31, 2015 FY12 Acquisitions [Member] USD ($)	Oct. 31, 2013 FY12 Acquisitions [Member] USD ($)	Oct. 31, 2015 Fair Value, Inputs, Level 3 [Member] USD ($)	Oct. 31, 2014 Fair Value, Inputs, Level 3 [Member] USD ($)	Oct. 31, 2015 Fair Value, Inputs, Level 3 [Member] FY 2015 Acquisition [Member]	Oct. 31, 2015 Fair Value, Inputs, Level 3 [Member] FY 2015 Acquisition [Member] Minimum [Member]	Oct. 31, 2015 Fair Value, Inputs, Level 3 [Member] FY 2015 Acquisition [Member] Maximum [Member]	Oct. 31, 2015 Flight Support Group [Member] USD ($)	Oct. 31, 2015 Flight Support Group [Member] FY 2015 Acquisition [Member] USD ($)	Oct. 31, 2014 Electronic Technologies Group [Member] USD ($)	Oct. 31, 2015 Euro Member Countries, Euro Flight Support Group [Member] EUR (€)	Oct. 31, 2015 Euro Member Countries, Euro Flight Support Group [Member] FY 2015 Acquisition [Member] EUR (€)
Business Acquisition, Contingent Consideration [Line Items]
Amount of contingent purchase consideration, the company could be required to pay				$ 20,000,000			$ 30,000,000		$ 7,700,000								$ 26,900,000			€ 24,400,000
Contingent consideration, liability	21,405,000	1,184,000			7,000,000	1,200,000		13,700,000		8,600,000	21,405,000	1,184,000				21,300,000	21,400,000		18,100,000	19,500,000
Fair Value Inputs, Long-term Revenue Growth Rate														2.00%	16.00%
Fair Value Inputs, Discount Rate													2.00%
Contingent consideration related to acquisition											293,000	(28,126,000)
Impairment of intangible assets	0	15,000,000	0															15,000,000
Change in value of contingent consideration	$ 293,000	$ (28,126,000)	$ (1,640,000)			$ 12,500,000											$ 100,000

SHAREHOLDERS' EQUITY (Details Textuals) (USD $)	1 Months Ended		12 Months Ended			1 Months Ended				12 Months Ended			0 Months Ended
SHAREHOLDERS' EQUITY (Details Textuals) (USD $)	Jan. 31, 2014	Dec. 31, 2012	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013	Jan. 31, 2014 Special Dividend [Member]	Dec. 31, 2012 Special Dividend [Member]	Jan. 31, 2014 Regular Semi-Annual Dividend [Member]	Dec. 31, 2012 Regular Semi-Annual Dividend [Member]	Oct. 31, 2013 Common Stock [Member]	Oct. 31, 2014 Common Class A [Member]	Oct. 31, 2013 Common Class A [Member]	Feb. 14, 2014 Heico Aerospace [Member]	Oct. 31, 2015 Heico Aerospace [Member]	Oct. 31, 2014 Heico Aerospace [Member]	Feb. 14, 2014 Heico Aerospace [Member]
Stock repurchase program, number of shares authorized to be repurchased (in shares)			2,501,813
Repurchase of common stock, shares (in shares)										36,354	6,833	39,965
Repurchase of common stock, amounts (in dollars)										$ 1,300,000	$ 300,000	$ 1,100,000
Dividends Payable, Date to be Paid	Jan. 31, 2014	Dec. 31, 2012
Cash dividends per share (in dollars per share)			$ 0.140	$ 0.470	$ 1.816	$ 0.35	$ 1.712	$ 0.06	$ 0.048
Cash dividends				27,200,000	116,600,000
Business Acquisition, Effective Date of Acquisition													Feb. 14, 2014
Percentage of interest acquired in the subsidiary																20.00%
Noncontrolling Interest, Ownership Percentage by Parent															80.00%
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners														20.00%	20.00%
Net assets acquired, excluding cash													$ 67,400,000

SHARE-BASED COMPENSATION (Details) (USD $)	12 Months Ended
SHARE-BASED COMPENSATION (Details) (USD $)	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Shares Available for Grant [Roll Forward]
Opening Balance Outstanding Shares (Shares Available For Grant)	1,617,000	1,840,000	2,389,000
Shares approved by Shareholders (Shares Available for Grant)	2,700,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	(291,000)	(161,000)	(549,000)
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period		(62,000)
Ending Balance Outstanding Shares (Shares Available For Grant)	1,326,000	1,617,000	1,840,000
Shares Outstanding [Roll Forward]
Outstanding (Shares Under Option)	3,264,000	3,142,000	2,899,000
Granted (Shares Under Option)	291,000	161,000	549,000
Exercised (Shares Under Option)	(220,000)	(39,000)	(306,000)
Outstanding (Shares Under Option)	3,335,000	3,264,000	3,142,000
Weighted Average Exercise Price [Roll Forward]
Outstanding (in dollars per share)	$ 22.59	$ 21.48	$ 16.90
Granted (in dollars per share)	$ 51.85	$ 43.37	$ 35.74
Exercised (in dollars per share)	$ 16.85	$ 18.36	$ 3.78
Outstanding (in dollars per share)	$ 25.52	$ 22.59	$ 21.48

SHARE-BASED COMPENSATION (Details 1) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2012
Number Outstanding (in shares)	3,335	3,264	3,142	2,899
Outstanding Weighted Average Exercise Price (in dollars per share)	$ 25.52	$ 22.59	$ 21.48	$ 16.90
Outstanding Weighted Average Contractual Life (in years)	5 years 7 months 6 days
Outstanding Aggregated Intrinsic Value (in dollars)	$ 73,197
Number Exercisable (in shares)	2,250
Exercisable Weighted Average Exercise Price (in dollars per share)	$ 19.73
Exercisable Weighted Average Contractual Life (in years)	4 years 7 months 6 days
Exercisable Aggregate Intrinsic Value (in dollars)	63,020
Heico Common Stock [Member]
Number Outstanding (in shares)	1,579
Outstanding Weighted Average Exercise Price (in dollars per share)	$ 23.54
Outstanding Weighted Average Contractual Life (in years)	4 years 10 months 24 days
Outstanding Aggregated Intrinsic Value (in dollars)	43,230
Number Exercisable (in shares)	1,342
Exercisable Weighted Average Exercise Price (in dollars per share)	$ 19.60
Exercisable Weighted Average Contractual Life (in years)	4 years 3 months 18 days
Exercisable Aggregate Intrinsic Value (in dollars)	41,376
Common Class A [Member]
Number Outstanding (in shares)	1,756
Outstanding Weighted Average Exercise Price (in dollars per share)	$ 27.30
Outstanding Weighted Average Contractual Life (in years)	6 years 3 months 18 days
Outstanding Aggregated Intrinsic Value (in dollars)	29,967
Number Exercisable (in shares)	908
Exercisable Weighted Average Exercise Price (in dollars per share)	$ 19.91
Exercisable Weighted Average Contractual Life (in years)	5 years
Exercisable Aggregate Intrinsic Value (in dollars)	$ 21,644

SHARE-BASED COMPENSATION (Details 2) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Proceeds from stock option exercises	$ 3,673	$ 708	$ 463
Tax benefit from stock option exercises	1,402	93	5,191
Intrinsic value of stock option exercises	$ 6,958	$ 929	$ 8,033

SHARE-BASED COMPENSATION (Details 3) (USD $)	12 Months Ended
SHARE-BASED COMPENSATION (Details 3) (USD $)	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Common Class A [Member]
Expected stock price volatility	36.51%	38.04%	38.40%
Risk-free interest rate	2.12%	2.06%	1.85%
Dividend yield	0.32%	0.38%	0.33%
Forfeiture rate	0.00%	0.00%	0.00%
Expected option life (years)	7 years	7 years	7 years
Weighted average fair value	$ 19.59	$ 17.23	$ 14.29
Heico Common Stock [Member]
Expected stock price volatility	39.96%		39.94%
Risk-free interest rate	2.30%		2.02%
Dividend yield	0.24%		0.24%
Forfeiture rate	0.00%		0.00%
Expected option life (years)	9 years		9 years
Weighted average fair value	$ 28.46		$ 20.24

SHARE-BASED COMPENSATION (Details Textuals) (USD $)	12 Months Ended
SHARE-BASED COMPENSATION (Details Textuals) (USD $)	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2012
Shares approved by Shareholders (Shares Available for Grant)	2,700,000
Number Outstanding (in shares)	3,335,000	3,264,000	3,142,000	2,899,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)	1,326,000	1,617,000	1,840,000	2,389,000
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period	10 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	5 years
Pre-tax unrecognized compensation expense related to nonvested stock options	$ 15,200,000
Pre-tax unrecognized compensation expense related to nonvested stock options, expected to be recognized over a weighted average period (in years)	3 years 4 months 24 days
Fair value of stock options, Vested	5,500,000	5,900,000	4,500,000
Excess tax benefit from stock option exercises	1,402,000	93,000	5,126,000
Deferred Compensation Arrangement with Individual, Shares Issued		24,982
Deferred Compensation Arrangement with Individual, Common Stock Reserved for Future Issuance		62,455
Common Class A [Member]
Number Outstanding (in shares)	1,756,000
Stock Option and Future Grants [Member]
Shares approved by Shareholders (Shares Available for Grant)	4,600,000
Number Outstanding (in shares)	3,300,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)	1,300,000
Restricted Stock [Member]
Allocated Share-based Compensation Expense	200,000	200,000	100,000
Pre-tax unrecognized compensation expense related to nonvested stock options	500,000
Pre-tax unrecognized compensation expense related to nonvested stock options, expected to be recognized over a weighted average period (in years)	2 years 2 months 12 days
Employee Stock Option [Member]
Allocated Share-based Compensation Expense	5,800,000	6,200,000	5,100,000
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense	$ 2,200,000	$ 2,400,000	$ 2,000,000
Restricted Subsidiary Shares [Member]
Equity Method Investment, Ownership Percentage			1.00%

EMPLOYEE RETIREMENT PLANS EMPLOYEE RETIREMENT PLANS (Details 2) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Change in projected benefit obligation:
Interest cost	$ 561
FY 2013 Acquisition [Member]
Change in projected benefit obligation:
Projected benefit obligation, Opening balance	13,815	13,213
Actuarial gain	716	930
Interest cost	561	610	236
Benefits paid	(924)	(938)
Projected benefit obligation, Ending balance	14,168	13,815	13,213
Change in plan assets:
Fair value of plan assets, Opening balance	11,359	11,397
Actual return on plan assets	254	764
Employer contributions	78	136
Benefits paid	(924)	(938)
Fair value of plan assets, Ending balance	10,767	11,359	11,397
Funded status	$ 3,401	$ 2,456

EMPLOYEE RETIREMENT PLANS EMPLOYEE RETIREMENT PLANS (Details 3) (FY 2013 Acquisition [Member])	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
FY 2013 Acquisition [Member]
Weighted Average Discount Rate [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	4.47%	4.20%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate	4.20%	4.79%	3.99%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets	6.75%	6.75%	6.75%

EMPLOYEE RETIREMENT PLANS EMPLOYEE RETIREMENT PLANS (Details 4) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Defined Benefit Plan Disclosure [Line Items]
Expected return on plan assets	$ 738
Interest cost	561
Net pension income	177
FY 2013 Acquisition [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected return on plan assets		739	320
Interest cost	561	610	236
Net pension income		$ 129	$ 84

EMPLOYEE RETIREMENT PLANS EMPLOYEE RETIREMENT PLANS (Details 5) (FY 2013 Acquisition [Member], USD $) In Thousands, unless otherwise specified	Oct. 31, 2015
FY 2013 Acquisition [Member]
Year ending October 31,
2016	$ 914
2017	907
2018	883
2019	915
2020	918
2021-2025	$ 4,436

EMPLOYEE RETIREMENT PLANS EMPLOYEE RETIREMENT PLANS (Details 6) (FY 2013 Acquisition [Member], USD $) In Thousands, unless otherwise specified	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	$ 10,767	$ 11,359	$ 11,397
Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	10,767	11,359
Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	5,372	5,563
Fixed Income Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	5,372	5,563
Fixed Income Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Fixed Income Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	5,280	5,678
Equity Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	5,280	5,678
Equity Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Equity Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Money Market Funds and Cash [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	115	118
Money Market Funds and Cash [Member] \| Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	115	118
Money Market Funds and Cash [Member] \| Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Money Market Funds and Cash [Member] \| Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	$ 0	$ 0

EMPLOYEE RETIREMENT PLANS EMPLOYEE RETIREMENT PLANS (Details 7) (FY 2013 Acquisition [Member])	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations	100.00%	100.00%
Defined Benefit Plan, Target Plan Asset Allocations	100.00%	100.00%
Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations	50.00%	49.00%
Defined Benefit Plan, Target Plan Asset Allocations	50.00%	50.00%
Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations	49.00%	50.00%
Defined Benefit Plan, Target Plan Asset Allocations	50.00%	50.00%
Money Market Funds and Cash [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations	1.00%	1.00%
Defined Benefit Plan, Target Plan Asset Allocations	0.00%	0.00%

EMPLOYEE RETIREMENT PLANS (Details Textuals) (USD $)	12 Months Ended
EMPLOYEE RETIREMENT PLANS (Details Textuals) (USD $)	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Defined contribution plan partcipants range minimum	6.00%
Defined contribution plan partcipants employees range maximum	6.00%
Defined contribution plan, vesting of employee contribution and cash dividends, percent	100.00%
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 6,100,000	$ 6,300,000	$ 3,200,000
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Gains (Losses), before Tax	1,200,000	900,000
Minimum [Member]
Defined contribution plan partcipants range minimum	25.00%
Maximum [Member]
Defined contribution plan partcipants range minimum	50.00%
FY 2013 Acquisition [Member]
Employer contributions	78,000	136,000
Defined Benefit Plan, Funded Status of Plan	3,401,000	2,456,000
Defined Benefit Plan, Actuarial Gain (Loss)	(716,000)	(930,000)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, before Reclassification Adjustments, Tax	(400,000)	(300,000)
Defined Benefit Plan, Actuarial Gain (Loss) before Tax	1,100,000
Defined Benefit Plans, Estimated Future Employer Contributions in Next Fiscal Year	$ 400,000

REDEEMABLE NONCONTROLLING INTERESTS REDEEMABLE NONCONTROLLING INTERESTS (Details)	12 Months Ended		12 Months Ended								12 Months Ended
	Oct. 31, 2015 Electronic Technologies Group [Member] Subsidiary One [Member]	Oct. 31, 2004 Electronic Technologies Group [Member] Subsidiary One [Member]	Oct. 31, 2015 Electronic Technologies Group [Member] Subsidiary Four [Member]	Oct. 31, 2015 Electronic Technologies Group [Member] Subsidiary Six [Member]	Oct. 31, 2015 Electronic Technologies Group [Member] Subsidiary Twelve [Member]	Oct. 31, 2015 Flight Support Group [Member] Subsidiary Two [Member]	Oct. 31, 2015 Flight Support Group [Member] Subsidiary Three [Member]	Oct. 31, 2013 Flight Support Group [Member] Subsidiary Four [Member]	Oct. 31, 2012 Flight Support Group [Member] Subsidiary Four [Member]	Oct. 31, 2006 Flight Support Group [Member] Subsidiary Four [Member]	Oct. 31, 2015 Flight Support Group [Member] Subsidiary Five [Member]	Oct. 31, 2015 Flight Support Group [Member] Subsidiary Seven [Member]	Oct. 31, 2015 Flight Support Group [Member] Subsidiary Eight [Member]	Oct. 31, 2015 Flight Support Group [Member] Subsidiary Nine [Member]	Oct. 31, 2015 Flight Support Group [Member] Subsidiary Ten [Member]	Oct. 31, 2015 Flight Support Group [Member] Subsidiary Eleven [Member]
Business Acquisition [Line Items]
Business Acquisition, Effective Date of Acquisition	Oct. 31, 2005		Oct. 31, 2009	Oct. 31, 2012	Oct. 31, 2015	Oct. 31, 2006	Oct. 31, 2008				Oct. 31, 2011	Oct. 31, 2012	Oct. 31, 2012	Oct. 31, 2015	Oct. 31, 2015	Oct. 31, 2015
Percentage of interest acquired in the subsidiary	95.90%	80.10%	82.50%	78.00%	80.10%	80.10%	82.30%	13.30%	35.70%	51.00%	80.10%	84.00%	80.10%	80.00%	80.10%	80.10%
Class of Warrant or Right, Date from which Warrants or Rights Exercisable	Oct. 31, 2016		Oct. 31, 2016	Oct. 31, 2017	Oct. 31, 2020	Oct. 31, 2016	Oct. 31, 2016				Oct. 31, 2016	Oct. 31, 2018	Oct. 31, 2019	Oct. 31, 2019	Oct. 31, 2020	Oct. 31, 2022
Put Rights Purchase Period	4 years		1 year	2 years	2 years	4 years	5 years				2 years	4 years	4 years	4 years	4 years	4 years

REDEEMABLE NONCONTROLLING INTERESTS (Details Textuals) (USD $)	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2015 Series of Individually Immaterial Business Acquisitions [Member]	Oct. 31, 2015 Subsidiary One [Member] Electronic Technologies Group [Member]	Oct. 31, 2004 Subsidiary One [Member] Electronic Technologies Group [Member]	Oct. 31, 2015 Subsidiary Two [Member] Flight Support Group [Member]	Oct. 31, 2015 Subsidiary Three [Member] Flight Support Group [Member]	Oct. 31, 2015 Subsidiary Four [Member] Electronic Technologies Group [Member]	Oct. 31, 2013 Subsidiary Four [Member] Flight Support Group [Member]	Oct. 31, 2012 Subsidiary Four [Member] Flight Support Group [Member]	Oct. 31, 2006 Subsidiary Four [Member] Flight Support Group [Member]	Oct. 31, 2015 Subsidiary Five [Member] Flight Support Group [Member]	Oct. 31, 2015 Subsidiary Six [Member] Electronic Technologies Group [Member]
Business Acquisition [Line Items]
Aggregate Redemption Amount Puttable				$ 35,000,000
Management's estimate of the aggregate redemption amount of all put rights	91,282,000	39,966,000
Potential Redemption Amount Payable				20,100,000
Estimated Redemption Amount of equity interest redeemable at fair value	76,900,000
Estimated Redemption Amount of equity interest redeemable based on a multiple of future earnings	14,400,000
Percentage of interest acquired in the subsidiary					95.90%	80.10%	80.10%	82.30%	82.50%	13.30%	35.70%	51.00%	80.10%	78.00%
Payments For Repurchase Of Redeemable Noncontrolling Interest	$ 0	$ (1,243,000)	$ (16,610,000)

- Definition

The fair value as of the reporting date of noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. The noncontrolling interest holder's ownership (or holders' ownership) may be in the form of common shares (regardless of class), limited partnership units (regardless of class), non-preferential membership interests, or any other form of common equity regardless of investee entity legal form.

+ References+ Details

NET INCOME PER SHARE ATTRIBUTABLE TO HEICO SHAREHOLDERS (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Oct. 31, 2015	Jul. 31, 2015	Apr. 30, 2015	Jan. 31, 2015	Oct. 31, 2014	Jul. 31, 2014	Apr. 30, 2014	Jan. 31, 2014	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Net income attributable to HEICO	$ 38,250	$ 34,369	$ 33,105	$ 27,640	$ 32,105	$ 33,366	$ 28,367	$ 27,455	$ 133,364	$ 121,293	$ 102,396
Denominator:
Weighted average common shares outstanding - basic									66,740	66,463	66,298
Effect of dilutive stock options									1,071	990	684
Weighted Average Number of Shares Outstanding, Diluted									67,811	67,453	66,982
Basic	$ 0.57	$ 0.51	$ 0.50	$ 0.42	$ 0.48	$ 0.50	$ 0.43	$ 0.41	$ 2.00	$ 1.82	$ 1.54
Diluted	$ 0.56	$ 0.51	$ 0.49	$ 0.41	$ 0.48	$ 0.49	$ 0.42	$ 0.41	$ 1.97	$ 1.80	$ 1.53
Anti-dilutive stock options excluded									412	430	754

- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References+ Details

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

+ References+ Details

- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

+ References+ Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References+ Details

QUARTERLY FINANCIAL INFORMATION (UNAUDITED) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Oct. 31, 2015	Jul. 31, 2015	Apr. 30, 2015	Jan. 31, 2015	Oct. 31, 2014	Jul. 31, 2014	Apr. 30, 2014	Jan. 31, 2014	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Net sales:
Net sales	$ 328,672	$ 300,370	$ 291,421	$ 268,185	$ 292,223	$ 291,030	$ 282,232	$ 266,826	$ 1,188,648	$ 1,132,311	$ 1,008,757
Gross profit:
Gross profit	126,796	108,092	105,494	93,797	102,946	103,327	99,922	92,117
Net income from consolidated operations:
Net income from consolidated operations	44,031	38,938	38,504	32,091	36,078	37,352	32,780	32,562	153,564	138,772	124,561
Net income attributable to HEICO:
Net income attributable to HEICO	$ 38,250	$ 34,369	$ 33,105	$ 27,640	$ 32,105	$ 33,366	$ 28,367	$ 27,455	$ 133,364	$ 121,293	$ 102,396
Basic:
Basic (in dollars per share)	$ 0.57	$ 0.51	$ 0.50	$ 0.42	$ 0.48	$ 0.50	$ 0.43	$ 0.41	$ 2.00	$ 1.82	$ 1.54
Diluted:
Diluted (in dollars per share)	$ 0.56	$ 0.51	$ 0.49	$ 0.41	$ 0.48	$ 0.49	$ 0.42	$ 0.41	$ 1.97	$ 1.80	$ 1.53

OPERATING SEGMENTS (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Oct. 31, 2015	Jul. 31, 2015	Apr. 30, 2015	Jan. 31, 2015	Oct. 31, 2014	Jul. 31, 2014	Apr. 30, 2014	Jan. 31, 2014	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Segment Reporting, Reconciling Item For Operating Profit (Loss) and Capital Expenditure From Segment To Consolidated [Line Items]
Net sales	$ 328,672	$ 300,370	$ 291,421	$ 268,185	$ 292,223	$ 291,030	$ 282,232	$ 266,826	$ 1,188,648	$ 1,132,311	$ 1,008,757
Depreciation									17,830	17,068	13,372
Amortization									30,077	30,689	23,418
Depreciation and amortization									47,907	47,757	36,790
Operating income									229,656	203,388	183,590
Capital expenditures									18,249	16,410	18,328
Total assets	1,736,387				1,489,214				1,736,387	1,489,214	1,533,015
Flight Support Group [Member]
Segment Reporting, Reconciling Item For Operating Profit (Loss) and Capital Expenditure From Segment To Consolidated [Line Items]
Net sales									809,700	762,801	665,148
Depreciation									10,859	9,809	7,997
Amortization									13,470	10,034	6,617
Operating income									149,798	136,480	122,058
Capital expenditures									11,737	9,437	10,190
Total assets	868,218				676,824				868,218	676,824	679,839
Electronic Technologies Group [Member]
Segment Reporting, Reconciling Item For Operating Profit (Loss) and Capital Expenditure From Segment To Consolidated [Line Items]
Net sales									390,982	379,404	350,033
Depreciation									6,803	7,113	5,242
Amortization									15,945	19,993	16,150
Operating income									98,833	88,914	83,063
Capital expenditures									6,201	6,327	7,748
Total assets	746,018				703,144				746,018	703,144	759,807
Other Primarily Corporate and Inter Segment [Member]
Segment Reporting, Reconciling Item For Operating Profit (Loss) and Capital Expenditure From Segment To Consolidated [Line Items]
Net sales									(12,034)	(9,894)	(6,424)
Depreciation									168	146	133
Amortization									662	662	651
Operating income									(18,975)	(22,006)	(21,531)
Capital expenditures									311	646	390
Total assets	$ 122,151				$ 109,246				$ 122,151	$ 109,246	$ 93,369

OPERATING SEGMENTS (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Oct. 31, 2015	Jul. 31, 2015	Apr. 30, 2015	Jan. 31, 2015	Oct. 31, 2014	Jul. 31, 2014	Apr. 30, 2014	Jan. 31, 2014	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 328,672	$ 300,370	$ 291,421	$ 268,185	$ 292,223	$ 291,030	$ 282,232	$ 266,826	$ 1,188,648	$ 1,132,311	$ 1,008,757
Property, Plant and Equipment, Net	105,670				93,865				105,670	93,865	97,737
North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									785,567	754,616	654,096
Property, Plant and Equipment, Net	85,253				84,116				85,253	84,116	87,247
Other Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									403,081	377,695	354,661
Property, Plant and Equipment, Net	$ 20,417				$ 9,749				$ 20,417	$ 9,749	$ 10,490

COMMITMENTS AND CONTINGENCIES (Details) (USD $) In Thousands, unless otherwise specified	Oct. 31, 2015
Year One	$ 10,526
Year Two	8,202
Year Three	4,479
Year Four	2,509
Year Five	2,063
Thereafter	8,943
Total minimum lease commitments	$ 36,722

COMMITMENTS AND CONTINGENCIES (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]
Balances as of beginning of year	$ 4,079	$ 3,233
Accruals for warranties	1,215	3,005
Acquired warranty liabilities	35	0
Warranty claims settled	(2,126)	(2,159)
Balances as of end of year	$ 3,203	$ 4,079

COMMITMENTS AND CONTINGENCIES (Details Textuals) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Commitments and Contingencies Disclosure [Abstract]
Total rent expense charged to operations for operating leases	$ 11.9	$ 11.2	$ 9.8
Guarantor Obligations, Maximum Exposure, Undiscounted	2.7
Standby letter of credit to meet the security requirement of its insurance company for potential workers' compensation claims	$ 1.5

SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Cash paid for income taxes	$ 76,021	$ 72,723	$ 62,631
Cash received from income tax refunds	(1,211)	(395)	(33)
Cash paid for interest	4,598	5,550	3,514
Other Significant Noncash Transaction, Value of Consideration Received	(204)	(56)	2,068
Property, plant and equipment acquired through capital lease obligations	59	131	0
Other Acquisitions [Member]
Contingent purchase consideration	21,355	0	20,654
Other Significant Noncash Transaction, Value of Consideration Received	$ (204)	$ (56)	$ 569

VALUATION AND QUALIFYING ACCOUNTS VALUATION AND QUALIFYING ACCOUNTS (Details) (USD $)
In Thousands, unless otherwise specified

12 Months Ended

Oct. 31, 2015

Oct. 31, 2014

Oct. 31, 2013

Allowance for Doubtful Accounts [Member]

Movement in Valuation Allowances and Reserves [Roll Forward]

Valuation Allowances and Reserves, Opening Balance

$ 2,143

$ 3,096

$ 2,334

Valuation Allowances and Reserves, Charged to Cost and Expense

248

586

Deductions Charged to Costs and Expenses

(232)

Deductions to Other Accounts

^[1]

Valuation Allowances and Reserves, Charged to Other Accounts

^[1]

303

^[1]

Valuation Allowances and Reserves, Deductions

(408)

^[2]

(690)

^[2]

(127)

^[2]

Valuation Allowances and Reserves, Ending Balance

2,038

2,143

3,096

Inventory Valuation Reserve [Member]

Movement in Valuation Allowances and Reserves [Roll Forward]

Valuation Allowances and Reserves, Opening Balance

60,608

54,577

46,861

Valuation Allowances and Reserves, Charged to Cost and Expense

7,779

9,398

8,032

Deductions to Other Accounts

322

^[3]

Valuation Allowances and Reserves, Charged to Other Accounts

4,598

^[3]

3,148

^[3]

Valuation Allowances and Reserves, Deductions

(3,331)

^[4]

(3,045)

^[4]

(3,464)

^[4]

Valuation Allowances and Reserves, Ending Balance

$ 69,654

$ 60,608

$ 54,577

[1]	Principally additions from acquisitions and foreign currency translation adjustments.
[2]	Principally write-offs of uncollectible accounts receivable, net of recoveries.
[3]	Principally additions from acquisitions and foreign currency translation adjustments
[4]	Principally write-offs of slow-moving, obsolete or damaged inventory

SUBSEQUENT EVENT SUBSEQUENT EVENT (Notes)	12 Months Ended
SUBSEQUENT EVENT SUBSEQUENT EVENT (Notes)	Oct. 31, 2015
Subsequent Events [Abstract]
Subsequent Events [Text Block]	SUBSEQUENT EVENT In December 2015, the Company, through a subsidiary of HEICO Electronic, acquired all of the assets and assumed certain liabilities of a company that designs and manufactures underwater locator beacons used to locate aircraft cockpit voice recorders, flight data recorders, marine ship voyage recorders and other devices which have been submerged under water. The purchase price of this acquisition was paid in cash using cash provided by operating activities and the total consideration for the acquisition is not material or significant to the Company’s consolidated financial statements.

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)	12 Months Ended
	Oct. 31, 2015
Building and Building Improvements [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	10 years
Building and Building Improvements [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	40 years
Leasehold Improvements [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	2 years
Leasehold Improvements [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	20 years
Other Machinery and Equipment [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Other Machinery and Equipment [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	10 years
Tooling [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	2 years
Tooling [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	5 years

FAIR VALUE MEASUREMENTS FAIR VALUE MEASUREMENTS, Level 3 valuation inputs (1) (Details 2) (FY 2015 Acquisition [Member], Fair Value, Inputs, Level 3 [Member])	12 Months Ended
	Oct. 31, 2015
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	2.00%
Minimum [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Fair Value Inputs, Long-term Revenue Growth Rate	2.00%
Maximum [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Fair Value Inputs, Long-term Revenue Growth Rate	16.00%

QUARTERLY FINANCIAL INFORMATION (UNAUDITED) (Details Textuals) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Jan. 31, 2015	Oct. 31, 2014 FY12 Acquisitions [Member]	Jul. 31, 2014 FY 2013 Acquisition [Member]	Jan. 31, 2014 FY 2013 Acquisition [Member]
Net Income Impact From Research And Development Credits Net Of Expenses	$ 1.8
Earnings Per Share Impact From Research And Development Credits Net Of Expenses	$ 0.03
Net Income Impact		$ 1.7	$ 3.4	$ 2.6
Earnings Per Share Impact		$ 0.03	$ 0.05	$ 0.04

SUBSEQUENT EVENT SUBSEQUENT EVENT (Details Textual) (Subsequent Event [Member])	1 Months Ended
	Dec. 31, 2015
Subsequent Event [Member]
Subsequent Event [Line Items]
Subsequent Event, Date	Dec. 31, 2015
Subsequent Event, Description	acquired all of the assets and assumed certain liabilities of a company that designs and manufactures underwater locator beacons used to locate aircraft cockpit voice recorders, flight data recorders, marine ship voyage recorders and other devices which have been submerged under water.

Buildings and improvements

Leasehold improvements

Machinery and equipment