NET INCOME PER SHARE ATTRIBUTABLE TO HEICO SHAREHOLDERS (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Jul. 31, 2013	Jul. 31, 2012	Jul. 31, 2013	Jul. 31, 2012
Numerator:
Net income attributable to HEICO	$ 28,947	$ 23,128	$ 72,605	$ 61,356
Denominator:
Weighted average common shares outstanding - basic (in shares)	53,074	52,695	53,020	52,651
Effect of dilutive stock options (in shares)	538	593	496	639
Weighted average common shares outstanding - diluted (in shares)	53,612	53,288	53,516	53,290
Net income per share attributable to HEICO shareholders:
Basic (in dollars per share)	$ 0.55	$ 0.44	$ 1.37	$ 1.17
Diluted (in dollars per share)	$ 0.54	$ 0.43	$ 1.36	$ 1.15
Anti-dilutive stock options excluded (in shares)	639	720	661	667