v2.4.0.6
DOCUMENT AND ENTITY INFORMATION (USD $)
12 Months Ended
Oct. 31, 2012
Apr. 30, 2012
Dec. 17, 2012
Common Stock [Member]
Dec. 17, 2012
Common Class A [Member]
Document and Entity Information [Abstract]        
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     21,396,373 31,624,278
Document Type 10-K      
Amendment Flag false      
Document Period End Date Oct. 31, 2012      
Document Fiscal Period Focus Q4      
Document Fiscal Year Focus 2012      
Entity Well-Known Seasoned Issuer Yes      
Entity Voluntary Filers No      
Entity Current Reporting Status Yes      
Entity Public Float   $ 1,718,978,000