Document and Entity Information	3 Months Ended
Document and Entity Information	Jan. 31, 2011	Feb. 25, 2011 Class A Common Stock	Feb. 25, 2011 Common Stock
Entity Registrant Name	HEICO CORP
Entity Central Index Key	0000046619
Current Fiscal Year End Date	--10-31
Entity Filer Category	Large Accelerated Filer
Trading Symbol	hei
Entity Common Stock, Shares Outstanding		19,949,348	13,352,034
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jan. 31, 2011
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2011

CONDENSED CONSOLIDATED BALANCE SHEETS (USD $)	3 Months Ended	12 Months Ended
CONDENSED CONSOLIDATED BALANCE SHEETS (USD $)	Jan. 31, 2011	Oct. 31, 2010
ASSETS
Cash and cash equivalents	$ 13,865,000	$ 6,543,000
Accounts receivable, net	92,047,000	91,815,000
Inventories, net	149,445,000	138,215,000
Prepaid expenses and other current assets	6,744,000	3,769,000
Deferred income taxes	18,260,000	18,907,000
Total current assets	280,361,000	259,249,000
Property, plant and equipment, net	58,134,000	59,003,000
Goodwill	389,202,000	385,016,000
Intangible assets, net	63,100,000	49,487,000
Other assets	34,703,000	28,888,000
Total assets	825,500,000	781,643,000
LIABILITIES AND EQUITY
Current maturities of long-term debt	91,000	148,000
Trade accounts payable	33,601,000	28,604,000
Accrued expenses and other current liabilities	45,966,000	52,101,000
Income taxes payable	1,531,000	979,000
Total current liabilities	81,189,000	81,832,000
Long-term debt, net of current maturities	24,074,000	14,073,000
Deferred income taxes	44,967,000	45,308,000
Other long-term liabilities	36,924,000	30,556,000
Total liabilities	187,154,000	171,769,000
Commitments and contingencies (Note 13)
Redeemable noncontrolling interests (Note 10)	61,196,000	55,048,000
Shareholders' equity:
Preferred Stock, $.01 par value per share; 10,000,000 shares authorized; 300,000 shares designated as Series B Junior Participating Preferred Stock and 300,000 shares designated as Series C Junior Participating Preferred Stock; none issued	0	0
Capital in excess of par value	232,151,000	227,993,000
Accumulated other comprehensive income (loss)	312,000	(124,000)
Retained earnings	256,123,000	240,913,000
Total HEICO shareholders' equity	488,918,000	469,112,000
Noncontrolling interests	88,232,000	85,714,000
Total shareholders' equity	577,150,000	554,826,000
Total liabilities and equity	825,500,000	781,643,000
Common Stock
Shareholders' equity:
Common Stock	133,000	131,000
Class A Common Stock
Shareholders' equity:
Common Stock	$ 199,000	$ 199,000

CONDENSED CONSOLIDATED BALANCE SHEETS [PARENTHETICAL] (USD $)	Jan. 31, 2011	Oct. 31, 2010
Preferred Stock, par value	$ 0.01	$ 0.01
Preferred Stock,shares authorized	10,000,000	10,000,000
Preferred Stock,shares issued	0	0
Series B Junior Participating Preferred Stock
Preferred Stock,shares authorized	300,000	300,000
Preferred Stock,shares issued	0	0
Series C Junior Participating Preferred Stock
Preferred Stock,shares authorized	300,000	300,000
Preferred Stock,shares issued	0	0
Common Stock
Common Stock, par value	$ 0.01	$ 0.01
Common Stock, shares authorized	30,000,000	30,000,000
Common Stock, shares issued	13,252,034	13,126,005
Common stock, shares outstanding	13,252,034	13,126,005
Class A Common Stock
Common Stock, par value	$ 0.01	$ 0.01
Common Stock, shares authorized	30,000,000	30,000,000
Common Stock, shares issued	19,935,679	19,863,572
Common stock, shares outstanding	19,935,679	19,863,572

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	3 Months Ended
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	Jan. 31, 2011	Jan. 31, 2010
Net sales	$ 174,219,000	$ 135,535,000
Operating costs and expenses:
Cost of sales	110,293,000	85,415,000
Selling, general and administrative expenses	31,554,000	25,576,000
Total operating costs and expenses	141,847,000	110,991,000
Operating income	32,372,000	24,544,000
Interest expense	(54,000)	(119,000)
Other income	55,000	155,000
Income before income taxes and noncontrolling interests	32,373,000	24,580,000
Income tax expense	9,850,000	8,550,000
Net income from consolidated operations	22,523,000	16,030,000
Less: Net income attributable to noncontrolling interests	5,449,000	4,237,000
Net income attributable to HEICO	$ 17,074,000	$ 11,793,000
Net income per share attributable to HEICO shareholders:
Basic	$ 0.52	$ 0.36
Diluted	$ 0.50	$ 0.35
Weighted average number of common shares outstanding:
Basic	33,087,674	32,683,590
Diluted	33,908,223	33,701,918
Cash dividends per share	$ 0.060	$ 0.048

CONDENSED CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY AND COMPREHENSIVE INCOME (USD $)	Total	Redeemable Noncontrolling Interests	Common Stock	Class A Common Stock	Capital in excess of par value	Accumulated Other Comprehensive Income (Loss)	Retained Earnings	Noncontrolling Interests
Balances at Oct. 31, 2009	$ 490,658,000	$ 56,937,000	$ 104,000	$ 157,000	$ 224,625,000	$ (1,381,000)	$ 189,485,000	$ 77,668,000
Comprehensive income:
Net income	13,825,000	2,205,000	0	0	0	0	11,793,000	2,032,000
Foreign currency translation adjustments	(23,000)	0	0	0	0	(23,000)	0	0
Total comprehensive income	13,802,000	2,205,000	0	0	0	(23,000)	11,793,000	2,032,000
Cash dividends	(1,570,000)	0	0	0	0	0	(1,570,000)	0
Tax benefit from stock option exercises	947,000	0	0	0	947,000	0	0	0
Proceeds from stock option exercises	232,000	0	0	0	232,000	0	0	0
Stock option compensation expense	308,000	0	0	0	308,000	0	0	0
Redemptions of common stock related to stock option exercises	(353,000)	0	0	0	(353,000)	0	0	0
Distributions to noncontrolling interests	0	(2,508,000)	0	0	0	0	0	0
Adjustments to redemption amount of redeemable noncontrolling interests	(302,000)	302,000	0	0	0	0	(302,000)	0
Other	2,000	1,000	0	0	0	2,000	0	0
Balances at Jan. 31, 2010	503,724,000	56,937,000	104,000	157,000	225,759,000	(1,402,000)	199,406,000	79,700,000
Balances at Oct. 31, 2010	554,826,000	55,048,000	131,000	199,000	227,993,000	(124,000)	240,913,000	85,714,000
Comprehensive income:
Net income	19,592,000	2,931,000	0	0	0	0	17,074,000	2,518,000
Foreign currency translation adjustments	436,000	0	0	0	0	436,000	0	0
Total comprehensive income	20,028,000	2,931,000	0	0	0	436,000	17,074,000	2,518,000
Cash dividends	(1,990,000)	0	0	0	0	0	(1,990,000)	0
Tax benefit from stock option exercises	7,695,000	0	0	0	7,695,000	0	0	0
Proceeds from stock option exercises	295,000	0	2,000	1,000	292,000	0	0	0
Stock option compensation expense	543,000	0	0	0	543,000	0	0	0
Redemptions of common stock related to stock option exercises	(4,371,000)	0	0	0	(4,371,000)	0	0	0
Distributions to noncontrolling interests	0	(2,269,000)	0	0	0	0	0	0
Noncontrolling interests assumed related to acquisition	0	5,612,000	0	0	0	0	0	0
Adjustments to redemption amount of redeemable noncontrolling interests	126,000	(126,000)	0	0	0	0	126,000	0
Other	(2,000)	0	0	(1,000)	(1,000)	0	0	0
Balances at Jan. 31, 2011	$ 577,150,000	$ 61,196,000	$ 133,000	$ 199,000	$ 232,151,000	$ 312,000	$ 256,123,000	$ 88,232,000

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	3 Months Ended
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	Jan. 31, 2011	Jan. 31, 2010
Operating Activities:
Net income from consolidated operations	$ 22,523,000	$ 16,030,000
Adjustments to reconcile net income from consolidated operations to net cash provided by operating activities:
Depreciation and amortization	4,307,000	4,251,000
Deferred income tax provision	347,000	429,000
Tax benefit from stock option exercises	7,695,000	947,000
Excess tax benefit from stock option exercises	(6,359,000)	(666,000)
Stock option compensation expense	543,000	308,000
Changes in operating assets and liabilities, net of acquisitions:
Decrease in accounts receivable	4,836,000	3,401,000
Increase in inventories	(2,045,000)	(4,082,000)
Increase in prepaid expenses and other current assets	(2,534,000)	(1,352,000)
Increase in trade accounts payable	1,027,000	1,179,000
Decrease in accrued expenses and other current liabilities	(8,010,000)	(4,486,000)
Increase in income taxes payable	782,000	4,387,000
Other	435,000	(69,000)
Net cash provided by operating activities	23,547,000	20,277,000
Investing Activities:
Acquisitions, net of cash acquired	(22,588,000)	(2,182,000)
Capital expenditures	(1,637,000)	(2,158,000)
Other	6,000	(3,000)
Net cash used in investing activities	(24,219,000)	(4,343,000)
Financing Activities:
Borrowings on revolving credit facility	28,000,000	1,000,000
Payments on revolving credit facility	(18,000,000)	(13,000,000)
Excess tax benefit from stock option exercises	6,359,000	666,000
Redemptions of common stock related to stock option exercises	(4,371,000)	(353,000)
Distributions to noncontrolling interests	(2,269,000)	(2,508,000)
Cash dividends paid	(1,990,000)	(1,570,000)
Proceeds from stock option exercises	295,000	232,000
Other	(59,000)	(34,000)
Net cash provided by (used in) financing activities	7,965,000	(15,567,000)
Effect of exchange rate changes on cash	29,000	(10,000)
Net increase in cash and cash equivalents	7,322,000	357,000
Cash and cash equivalents at beginning of year	6,543,000	7,167,000
Cash and cash equivalents at end of period	$ 13,865,000	$ 7,524,000

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	3 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	Jan. 31, 2011
General Policies [Abstract]
Significant Accounting Policies [Text Block]	1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of Presentation The accompanying unaudited condensed consolidated financial statements of HEICO Corporation and its subsidiaries (collectively, "HEICO," or the "Company") have been prepared in conformity with accounting principles generally accepted in the United States of America for interim financial information and in accordance with the instructions to Form 10-Q. Therefore, the condensed consolidated financial statements do not include all information and footnotes normally included in annual consolidated financial statements and should be read in conjunction with the consolidated financial statements and notes thereto included in the Company's Annual Report on Form 10-K for the year ended October 31, 2010. The October 31, 2010 Condensed Consolidated Balance Sheet has been derived from the Company's audited consolidated financial statements. In the opinion of management, the unaudited condensed consolidated financial statements contain all adjustments (consisting principally of normal recurring accruals) necessary for a fair presentation of the condensed consolidated balance sheets, statements of operations and statements of cash flows for such interim periods presented. The results of operations for the three months ended January 31, 2011 are not necessarily indicative of the results which may be expected for the entire fiscal year. Stock Split All applicable fiscal 2010 share and per share information has been adjusted retrospectively to reflect a 5-for-4 stock split effected in April 2010. New Accounting Pronouncements In January 2010, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2010-06, "Improving Disclosures About Fair Value Measurements," which requires additional disclosures regarding transfers in and out of Level 1 and Level 2 fair value measurements and more detailed information of activity in Level 3 fair value measurements. The Company adopted ASU 2010-06 as of the beginning of fiscal 2010, except the additional Level 3 disclosures, which are effective in fiscal years beginning after December 15, 2010, or as of fiscal 2012 for HEICO. The Company will make the additional Level 3 disclosures, if applicable, as of the date of adoption. In December 2010, the FASB issued ASU 2010-29, "Disclosure of Supplementary Pro Forma Information for Business Combinations." Under ASU 2010-29, supplemental pro forma information disclosures pertaining to acquisitions should be presented as if the business combination(s) occurred as of the beginning of the prior annual period when comparative financial statements are presented. ASU 2010-29 is effective for business combinations consummated in fiscal periods beginning after December 15, 2010. Early adoption is permitted and the Company adopted the new guidance on a prospective basis as of December 2010.

ACQUISITIONS	3 Months Ended
ACQUISITIONS	Jan. 31, 2011
Disclosure Business Combination [Abstract]
Business Combination Disclosure [Text Block]	2. ACQUISITIONS In December 2010, the Company, through its HEICO Aerospace Holdings Corp. ("HEICO Aerospace") subsidiary, acquired 80.1% of the assets and assumed certain liabilities of Blue Aerospace LLC. Blue Aerospace is a supplier, distributor, and integrator of military aircraft parts and support services primarily to foreign military organizations allied with the United States. The remaining 19.9% interest continues to be owned by certain members of Blue Aerospace's management team (see Note 10, Redeemable Noncontrolling Interests, for additional information). The total consideration for this acquisition and related allocation to the tangible and identifiable intangible assets acquired and liabilities assumed is not material or significant to the Company's condensed consolidated financial statements. The purchase price was paid in cash principally using proceeds from the Company's revolving credit facility. The operating results of the Company's fiscal 2011 acquisition were included in the Company's results of operations from the effective acquisition date. The amount of net sales and earnings of the fiscal 2011 acquisition included in the Condensed Consolidated Statements of Operations is not material. Had the fiscal 2011 acquisition been consummated as of November 1, 2009, net sales, net income from consolidated operations, net income attributable to HEICO, and basic and diluted net income per share attributable to HEICO shareholders on a pro forma basis for the three months ended January 31, 2010 and 2011 would not have been materially different than the reported amounts.

SELECTED FINANCIAL STATEMENT INFORMATION

3 Months Ended

Jan. 31, 2011

Disclosure Selected Financial Statement Information [Abstract]

Selected Financial Statement Information [Text Block]

3. SELECTED FINANCIAL STATEMENT INFORMATION

Accounts Receivable

	January 31, 2011			October 31, 2010
Accounts receivable	$	94,604,000		$	94,283,000
Less: Allowance for doubtful accounts		(2,557,000	)		(2,468,000	)
Accounts receivable, net	$	92,047,000		$	91,815,000

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

	January 31, 2011			October 31, 2010
Costs incurred on uncompleted contracts	$	5,391,000		$	6,323,000
Estimated earnings		5,906,000			7,603,000
		11,297,000			13,926,000
Less: Billings to date		(6,754,000	)		(8,967,000	)
	$	4,543,000		$	4,959,000
Included in the accompanying Condensed Consolidated
Balance Sheets under the following captions:
Accounts receivable, net (costs and estimated earnings in excess of billings)	$	4,658,000		$	5,135,000
Accrued expenses and other current liabilities (billings in excess of costs and estimated earnings) earnings)		(115,000	)		(176,000	)
	$	4,543,000		$	4,959,000

The percentage of the Company's net sales recognized under the percentage-of-completion method was not material for the three months ended January 31, 2011 and 2010. Changes in estimates pertaining to percentage-of-completion contracts did not have a material effect on net income from consolidated operations for the three months ended January 31, 2011 and 2010.

Inventories

	January 31, 2011		October 31, 2010
Finished products	$	80,544,000	$	72,263,000
Work in process		20,832,000		19,034,000
Materials, parts, assemblies and supplies		48,069,000		46,918,000
Inventories, net of valuation reserves	$	149,445,000	$	138,215,000

Inventories related to long-term contracts were not significant as of January 31, 2011 and October 31, 2010.

Property, Plant and Equipment

	January 31, 2011			October 31, 2010
Land	$	3,656,000		$	3,656,000
Buildings and improvements		39,361,000			38,772,000
Machinery, equipment and tooling		86,843,000			85,095,000
Construction in progress		5,460,000			6,319,000
		135,320,000			133,842,000
Less: Accumulated depreciation and amortization		(77,186,000	)		(74,839,000	)
Property, plant and equipment, net	$	58,134,000		$	59,003,000

Accrued Customer Rebates and Credits

The aggregate amount of accrued customer rebates and credits included within accrued expenses and other current liabilities in the accompanying Condensed Consolidated Balance Sheets was $11,519,000 and $9,230,000 as of January 31, 2011 and October 31, 2010, respectively. The total customer rebates and credits deducted within net sales for the three months ended January 31, 2011 and 2010 was $2,580,000 and $2,379,000, respectively.

GOODWILL AND OTHER INTANGIBLE ASSETS

3 Months Ended

Jan. 31, 2011

Disclosure Intangible Asset, Goodwill and Other [Abstract]

Goodwill and Intangible Assets Disclosure [Text Block]

4. GOODWILL AND OTHER INTANGIBLE ASSETS

The Company has two operating segments: the Flight Support Group ("FSG") and the Electronic Technologies Group ("ETG"). Changes in the carrying amount of goodwill by operating segment for the three months ended January 31, 2011 are as follows:

	Segment				Consolidated
	FSG		ETG		Totals
Balances as of October 31, 2010	$	188,459,000	$	196,557,000	$	385,016,000
Goodwill acquired		3,898,000		—		3,898,000
Foreign currency translation adjustments		—		288,000		288,000
Balances as of January 31, 2011	$	192,357,000	$	196,845,000	$	389,202,000

The goodwill acquired pertains to the current year acquisition described in Note 2, Acquisitions, and represents the residual value after the allocation of the total consideration to the tangible and identifiable intangible assets acquired and liabilities assumed.

Identifiable intangible assets consist of the following:

	As of January 31, 2011							As of October 31, 2010
	Gross					Net		Gross					Net
	Carrying		Accumulated			Carrying		Carrying		Accumulated			Carrying
	Amount		Amortization			Amount		Amount		Amortization			Amount
Amortizing Assets:
Customer relationships	$	46,682,000	$	(13,506,000	)	$	33,176,000	$	37,338,000	$	(12,142,000	)	$	25,196,000
Intellectual property		7,312,000		(1,594,000	)		5,718,000		7,281,000		(1,372,000	)		5,909,000
Licenses		2,900,000		(656,000	)		2,244,000		1,000,000		(621,000	)		379,000
Non-compete agreements		1,362,000		(1,057,000	)		305,000		1,170,000		(1,019,000	)		151,000
Patents		569,000		(281,000	)		288,000		554,000		(270,000	)		284,000
Trade names		569,000		(140,000	)		429,000		569,000		(112,000	)		457,000
		59,394,000		(17,234,000	)		42,160,000		47,912,000		(15,536,000	)		32,376,000
Non-Amortizing Assets:
Trade names		20,940,000		—			20,940,000		17,111,000		—			17,111,000
	$	80,334,000	$	(17,234,000	)	$	63,100,000	$	65,023,000	$	(15,536,000	)	$	49,487,000

The increase in the gross carrying amount of customer relationships, licenses, non-compete agreements and non-amortizing trade names as of January 31, 2011 compared to October 31, 2010 principally relates to such intangible assets recognized in connection with an acquisition made during the first quarter of fiscal 2011 (see Note 2, Acquisitions). The weighted average amortization period of the customer relationships, licenses and non-compete agreements acquired is 10 years, 10 years and 2 years, respectively.

Amortization expense related to intangible assets for the three months ended January 31, 2011 and 2010 was $1,651,000 and $1,576,000, respectively. Amortization expense related to intangible assets for the fiscal year ending October 31, 2011 is estimated to be $7,298,000. Amortization expense for each of the next five fiscal years and thereafter is estimated to be $6,806,000 in fiscal 2012, $6,234,000 in fiscal 2013, $5,884,000 in fiscal 2014, $4,698,000 in fiscal 2015, $3,683,000 in fiscal 2016 and $9,208,000 thereafter.

- Definition

Discloses 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 or 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. This element may be used as a single block of text to include the entire intangible asset disclosure including data and tables.

+ References+ Details

LONG-TERM DEBT

3 Months Ended

Jan. 31, 2011

Disclosure of Debt [Abstract]

Long-term Debt [Text Block]

5. LONG-TERM DEBT

Long-term debt consists of the following:

	January 31, 2011			October 31, 2010
Borrowings under revolving credit facility	$	24,000,000		$	14,000,000
Notes payable and capital leases		165,000			221,000
		24,165,000			14,221,000
Less: Current maturities of long-term debt		(91,000	)		(148,000	)
	$	24,074,000		$	14,073,000

As of January 31, 2011 and October 31, 2010, the weighted average interest rate on borrowings under the Company's $300 million revolving credit facility was .9% as of each period. The revolving credit facility contains both financial and non-financial covenants. As of January 31, 2011, the Company was in compliance with all such covenants.

INCOME TAXES

3 Months Ended

Jan. 31, 2011

Disclosure Of Income Tax [Abstract]

Income Tax Disclosure [Text Block]

6. INCOME TAXES

As of January 31, 2011, the Company's liability for gross unrecognized tax benefits related to uncertain tax positions was $2,592,000 of which $2,190,000 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 for the three months ended January 31, 2011 is as follows:

Balance as of October 31, 2010	$	2,306,000
Increases related to prior year tax positions		104,000
Increases related to current year tax positions		182,000
Balance as of January 31, 2011	$	2,592,000

There were no material changes in the liability for unrecognized tax positions resulting from tax positions taken during the current or a prior year, settlements with other taxing authorities or a lapse of applicable statutes of limitations. The accrual of interest and penalties related to the unrecognized tax benefits was not material for the three months ended January 31, 2011. Further, the Company does not expect the total amount of unrecognized tax benefits to materially change in the next twelve months.

In December 2010, Section 41 of the Internal Revenue Code, "Credit for Increasing Research Activities," was retroactively extended for two years to cover the period from January 1, 2010 to December 31, 2011. As a result, the Company recognized an income tax credit for qualified research and development activities for the last ten months of fiscal 2010 in the first quarter of 2011. The tax credit, net of expenses, increased net income attributable to HEICO by approximately $.8 million for the three months ended January 31, 2011.

FAIR VALUE MEASUREMENTS

3 Months Ended

Jan. 31, 2011

Fair Value Measures and Disclosuers [Abstract]

Fair Value Disclosures [Text Block]

7. FAIR VALUE MEASUREMENTS

The following tables sets forth by level within the fair value hierarchy, the Company's assets and liabilities that were measured at fair value on a recurring basis:

	As of January 31, 2011
	Quoted Prices		Significant		Significant
	in Active Markets		Other Observable		Unobservable
	for Identical Assets		Inputs		Inputs
	(Level 1)		(Level 2)		(Level 3)		Total
Assets:
Deferred compensation plans:
Corporate owned life insurance	$	—	$	27,827,000	$	—	$	27,827,000
Equity securities		1,343,000		—		—		1,343,000
Money market funds and cash		1,315,000		—		—		1,315,000
Mutual funds		1,028,000		—		—		1,028,000
Other		—		476,000		556,000		1,032,000
Total assets	$	3,686,000	$	28,303,000	$	556,000	$	32,545,000

Liabilities:
Contingent consideration	$	—	$	—	$	1,150,000	$	1,150,000

	As of October 31, 2010
	Quoted Prices		Significant		Significant
	in Active Markets		Other Observable		Unobservable
	for Identical Assets		Inputs		Inputs
	(Level 1)		(Level 2)		(Level 3)		Total
Assets:
Deferred compensation plans:
Corporate owned life insurance	$	—	$	22,908,000	$	—	$	22,908,000
Equity securities		1,267,000		—		—		1,267,000
Money market funds and cash		1,165,000		—		—		1,165,000
Mutual funds		1,002,000		—		—		1,002,000
Other		—		545,000		—		545,000
Total assets	$	3,434,000	$	23,453,000	$	—	$	26,887,000

Liabilities:
Contingent consideration	$	—	$	—	$	1,150,000	$	1,150,000

The Company maintains two non-qualified deferred compensation plans. The assets of the HEICO Corporation Leadership Compensation Plan (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 are valued using a market approach. Certain other assets of the LCP represent investments in HEICO common stock and money market funds that are classified within Level 1. The majority of the assets of the Company's other deferred compensation plan are principally invested in equity securities, mutual funds and money market funds that are classified within Level 1. A portion o f the assets within the other deferred compensation plan is currently invested in a fund that invests in future and forward contracts; most of which are privately negotiated with counterparties without going through a public exchange, and that use trading methods that are proprietary and confidential. These assets are therefore classified within Level 3 and are valued using a market approach with corresponding gains and losses reported within other income (expense) in the Company's Condensed Consolidated Statement of Operations. The assets of both plans are held within irrevocable trusts and classified within other assets in the Company's Condensed Consolidated Balance Sheets and have an aggregate value of $32,545,000 as of January 31, 2011 and $26,887,000 as of October 31, 2010, of which the LCP related assets were $28,366,000 and $22,604,000 as of January 31, 2011 and October 31, 2010, respectively. The related liabilities of the two deferred compensation plans are included within other long-term liabilities in the Company's Condensed Consolidated Balance Sheets and have an aggregate value of $32,620,000 as of January 31, 2011 and $26,506,000 as of October 31, 2010, of which the LCP related liability was $28,440,000 and $22,223,000 as of January 31, 2011 and October 31, 2010, respectively.

Changes in the Company’s assets measured at fair value on a recurring basis using unobservable inputs (Level 3) for the three months ended January 31, 2011 are as follows:

Balance as of October 31, 2010	$	—
Purchases		550,000
Total unrealized gains		6,000
Balance as of January 31, 2011	$	556,000

The Company did not have any transfers between Level 1 and Level 2 fair value measurements during the three months ended January 31, 2011.

As part of the agreement to acquire a subsidiary by the ETG in fiscal 2010, the Company may be obligated to pay contingent consideration of up to $2.0 million in fiscal 2013 should the acquired entity meet certain earnings objectives during the second and third years following the acquisition. The $1,150,000 fair value of the contingent consideration was determined as of the acquisition date using a discounted cash flow model and probability adjusted internal estimates of the subsidiary's future earnings and is classified in Level 3. There have been no subsequent changes in the fair value of this contingent consideration as of January 31, 2011 and this obligation is included in other long-term liabilities in the Company's Condensed Consolidated Balance Sheet. Changes in the fair value of contingent consideration will be recorded in the Company's condensed consolidated statements of operations.

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 January 31, 2011 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.

- Definition

This item represents the complete disclosure regarding the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments, 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 Company 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 risk is 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	3 Months Ended
SHAREHOLDERS' EQUITY	Jan. 31, 2011
Stockholders' Equity Note [Abstract]
Stockholders' Equity Note Disclosure [Text Block]	8. SHAREHOLDERS' EQUITY During the first quarter of fiscal 2011, the Company repurchased an aggregate 65,706 shares of Common Stock at a total cost of approximately $3.7 million and an aggregate 17,562 shares of Class A Common Stock at a total cost of approximately $.7 million. The transactions occurred as settlement for employee taxes due pertaining to exercises of non-qualified stock options and did not impact the number of shares authorized for future purchase under the Company's share repurchase program.

- Definition

Disclosures related to accounts comprising shareholders' equity, including other comprehensive income. Includes: (1) balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings; (2) accumulated balance for each classification of other comprehensive income and total amount of comprehensive income; (3) amount and nature of changes in separate accounts, including the number of shares authorized and outstanding, number of shares issued upon exercise and conversion, and for other comprehensive income, the adjustments for reclassifications to net income; (4) rights and privileges of each class of stock authorized; (5) basis of treasury stock, if other than cost, and amounts paid and accounting treatment for treasury stock purchased significantly in excess of market; (6) dividends paid or payable per share and in the aggregate for each class of stock for each period presented; (7) dividend restrictions and accumulated preferred dividends in arrears (in aggregate and per share amount); (8) retained earnings appropriations or restrictions, such as dividend restrictions; (9) impact of change in accounting principle, initial adoption of new accounting principle and correction of an error in previously issued financial statements; (10) shares held in trust for Employee Stock Ownership Plan (ESOP); (11) deferred compensation related to issuance of capital stock; (12) note received for issuance of stock; (13) unamortized discount on shares; (14) description, terms and number of warrants or rights outstanding; (15) shares under subscription and subscription receivables; effective date of new retained earnings after quasi-reorganization and deficit eliminated by quasi-reorganization and, for a period of at least ten years after the effective date, the point in time from which the new retained dates; and (16) retroactive effective of subsequent change in capital structure.

+ References+ Details

RESEARCH AND DEVELOPMENT EXPENSES	3 Months Ended
RESEARCH AND DEVELOPMENT EXPENSES	Jan. 31, 2011
Disclosure Research and Development [Abstract]
Research, Development, and Computer Software Disclosure [Text Block]	9. RESEARCH AND DEVELOPMENT EXPENSES Cost of sales for the three months ended January 31, 2011 and 2010 includes approximately $5.6 million and $5.1 million, respectively, of new product research and development expenses.

- Definition

Description, amount and terms involving research, development, and computer software activities, including contracts and arrangements to be performed for others and with federal government. Includes costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility and in-process research and development acquired in a business combination consummated during the period.

+ References+ Details

REDEEMABLE NONCONTROLLING INTERESTS	3 Months Ended
REDEEMABLE NONCONTROLLING INTERESTS	Jan. 31, 2011
Disclosure Noncontrolling Interest [Abstract]
Temporary Equity Redeemable Noncontrolling Interests [Text Block]	10. 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 beginning in the second quarter of fiscal 2011 through fiscal 2018. 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 January 31, 2011, management's estimate of the aggregate Redemption Amount of all Put Rights that the Company would be required to pay is approximately $61 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 January 31, 2011 redeemable at fair value is approximately $31 million and the portion redeemable based solely on a multiple of future earnings is approximately $30 million. The portion of periodic adjustments to the Redemption Amount based on fair value, if any, will have no effect 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 in excess of fair value, if any, will affect net income per share attributable to HEICO shareholders. As discussed in Note 2, Acquisitions, the Company entered into an agreement to acquire an 80.1% interest in a subsidiary by the FSG in December 2010. As part of the agreement, the Company has the right to purchase the noncontrolling interests over a two-year period beginning in fiscal 2015, or sooner under certain conditions, and the noncontrolling interest holders have the right to cause the Company to purchase the same equity interests over the same period. The estimated amount of Put Rights related to the acquisition is included in the aggregate Redemption Amount above.

NET INCOME PER SHARE ATTRIBUTABLE TO HEICO SHAREHOLDERS

3 Months Ended

Jan. 31, 2011

Earnings Per Share [Abstract]

Earnings Per Share [Text Block]

11. 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:

	Three months ended January 31,
	2011		2010
Numerator:
Net income attributable to HEICO	$	17,074,000	$	11,793,000

Denominator:
Weighted average common shares outstanding-basic		33,087,674		32,683,590
Effect of dilutive stock options		820,549		1,018,328
Weighted average common shares outstanding - diluted		33,908,223		33,701,918

Net income per share attributable to HEICO shareholders:
Basic	$	.52	$	.36
Diluted	$	.50	$	.35

Anti-dilutive stock options excluded		216,000		434,375

No portion of the adjustments to the redemption amount of redeemable noncontrolling interests of ($126,000) and $302,000 for the three months ended January 31, 2011 and 2010, respectively, reflect a redemption amount in excess of fair value and therefore no portion of the adjustments affect basic or diluted net income per share attributable to HEICO shareholders.

OPERATING SEGMENTS

3 Months Ended

Jan. 31, 2011

Disclosure Segment Reporting [Abstract]

Segment Reporting Disclosure [Text Block]

12. OPERATING SEGMENTS

Information on the Company's two operating segments, the Flight Support Group ("FSG"), consisting of HEICO Aerospace Holdings Corp. and its subsidiaries, and the Electronic Technologies Group ("ETG"), consisting of HEICO Electronic Technologies Corp. and its subsidiaries, for the three months ended January 31, 2011 and 2010, respectively, is as follows:

					Other,
					Primarily
	Segment				Corporate and			Consolidated
	FSG		ETG		Intersegment			Totals
Three months ended January 31, 2011:
Net sales	$	120,641,000	$	53,939,000	$	(361,000	)	$	174,219,000
Depreciation and amortization		2,378,000		1,834,000		95,000			4,307,000
Operating income		20,429,000		15,538,000		(3,595,000	)		32,372,000
Capital expenditures		1,285,000		351,000		1,000			1,637,000

Three months ended January 31, 2010:
Net sales	$	93,779,000	$	42,058,000	$	(302,000	)	$	135,535,000
Depreciation and amortization		2,464,000		1,688,000		99,000			4,251,000
Operating income		16,720,000		11,170,000		(3,346,000	)		24,544,000
Capital expenditures		1,949,000		206,000		3,000			2,158,000

Total assets by operating segment as of January 31, 2011 and October 31, 2010 are as follows:


	Segment				Primarily		Consolidated
	FSG		ETG		Corporate		Totals

Total assets as of January 31, 2011	$	448,405,000	$	324,854,000	$	52,241,000	$	825,500,000
Total assets as of October 31, 2010		410,666,000		328,577,000		42,400,000		781,643,000

COMMITMENTS AND CONTINGENCIES

3 Months Ended

Jan. 31, 2011

Disclosure Commitment and Contingencies [Abstract]

Commitments and Contingencies Disclosure [Text Block]

13. COMMITMENTS AND CONTINGENCIES

Guarantees

The Company has arranged for a standby letter of credit for $1.5 million to meet the security requirement of its insurance company for potential workers' compensation claims, which is supported by the Company's revolving credit facility.

Product Warranty

Changes in the Company's product warranty liability for the three months ended January 31, 2011 and 2010, respectively, are as follows:

	Three months ended January 31,
	2011			2010
Balances as of beginning of fiscal year	$	1,636,000		$	1,022,000
Accruals for warranties		283,000			454,000
Warranty claims settled		(174,000	)		(281,000	)
Balances as of January 31	$	1,745,000		$	1,195,000

Additional Contingent Purchase Consideration

As part of the agreement to acquire a subsidiary by the ETG in fiscal 2007, the Company may be obligated to pay additional purchase consideration of up to 73 million Canadian dollars in aggregate, which translates to approximately $73 million U.S. dollars based on the January 31, 2011 exchange rate, should the subsidiary meet certain earnings objectives through fiscal 2012.

As part of the agreement to acquire a subsidiary by the ETG in fiscal 2009, the Company may be obligated to pay additional purchase consideration of up to approximately $1.3 million in fiscal 2011 and $10.1 million in fiscal 2012 should the subsidiary meet certain earnings objectives during the second and third years, respectively, following the acquisition.

As part of the agreement to acquire a subsidiary by the ETG in fiscal 2009, the Company may be obligated to pay additional purchase consideration of up to approximately $7.6 million should the subsidiary meet certain earnings objectives during the second year following the acquisition.

The above referenced additional contingent purchase consideration will be accrued when the earnings objectives are met. Such additional contingent purchase consideration is based on a multiple of earnings above a threshold (subject to a cap in certain cases) and is not contingent upon the former shareholders of the acquired entities remaining employed by the Company or providing future services to the Company. Accordingly, such consideration will be recorded as an additional cost of the respective acquired entity when paid. The aggregate maximum amount of such contingent purchase consideration that the Company could be required to pay is approximately $92 million payable over future periods beginning in fiscal 2011 through fiscal 2012. Assuming the subsidiaries perform over their respective future measurement periods at the same earnings levels they have performed in the comparable historical measurement periods, the aggregate amount of such contingent purchase consideration that the Company would be required to pay is approximately $16 million. The actual contingent purchase consideration will likely be different.

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.

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY AND COMPREHENSIVE INCOME [PARENTHETICAL] (USD $)	3 Months Ended
	Jan. 31, 2011	Jan. 31, 2010
Consolidated Statements Of Shareholders' Equity and Comprehensive Income [Parenthetical] [Abstract]
Cash dividends per share	$ 0.060	$ 0.048