NET INCOME PER SHARE ATTRIBUTABLE TO HEICO SHAREHOLDERS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Jan. 31, 2016	Jan. 31, 2015
Numerator:
Net income attributable to HEICO	$ 31,271	$ 27,640
Denominator:
Weighted Average Number of Shares Outstanding, Basic	66,875	66,595
Effect of dilutive stock options	1,065	1,074
Weighted Average Number of Shares Outstanding, Diluted	67,940	67,669
Earnings Per Share, Basic	$ 0.47	$ 0.42
Earnings Per Share, Diluted	$ 0.46	$ 0.41
Anti-dilutive stock options excluded	715	305