CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY AND COMPREHENSIVE INCOME - UNAUDITED (USD $) In Thousands	Total	Redeemable Noncontrolling Interests [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]
Balance at Oct. 31, 2011		$ 65,430	$ 171	$ 250	$ 226,120	$ 522	$ (522)	$ 3,033	$ 299,497	$ 91,083	$ 620,154
Comprehensive income	19,038	2,381	0	0	0	0	0	(5,428)	19,185	2,900	16,657
Cash dividends		0	0	0	0	0	0	0	(2,526)	0	(2,526)
Tax benefit from stock option exercises	13,026	0	0	0	13,026	0	0	0	0	0	13,026
Stock option compensation expense		0	0	0	942	0	0	0	0	0	942
Proceeds from stock option exercises		0	0	0	79	0	0	0	0	0	79
Redemptions of common stock related to stock option exercises	0
Distributions to noncontrolling interests		(3,006)	0	0	0	0	0	0	0	0	0
Adjustments to redemption amount of redeemable noncontrolling interests		992	0	0	0	0	0	0	(992)	0	(992)
Other		420	0	0	0	0	0	(148)	(79)	0	(227)
Balance at Jan. 31, 2012		66,217	171	250	240,167	522	(522)	(2,543)	315,085	93,983	647,113
Balance at Oct. 31, 2012	719,759	67,166	213	315	244,632	823	(823)	(3,572)	375,085	103,086	719,759
Comprehensive income	28,218	2,168	0	0	0	0	0	3,234	19,958	2,858	26,050
Cash dividends		0	0	0	0	0	0	0	(116,645)	0	(116,645)
Tax benefit from stock option exercises	5,170	0	0	0	5,170	0	0	0	0	0	5,170
Stock option compensation expense		0	0	0	1,094	0	0	0	0	0	1,094
Proceeds from stock option exercises		0	1	1	284	0	0	0	0	0	286
Redemptions of common stock related to stock option exercises	(2,364)	0	0	0	(2,364)	0	0	0	0	0	(2,364)
Acquisitions of noncontrolling interests		(16,610)	0	0	0	0	0	0	0	0	0
Distributions to noncontrolling interests		(2,310)	0	0	0	0	0	0	0	0	0
Adjustments to redemption amount of redeemable noncontrolling interests		804	0	0	0	0	0	0	(804)	0	(804)
Deferred compensation obligation		0	0	0	0	105	(105)	0	0	0	0
Other		0	0	0	1	0	0	0	(1)	(2)	(2)
Balance at Jan. 31, 2013	$ 632,544	$ 51,218	$ 214	$ 316	$ 248,817	$ 928	$ (928)	$ (338)	$ 277,593	$ 105,942	$ 632,544