NET INCOME PER SHARE ATTRIBUTABLE TO HEICO SHAREHOLDERS (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2014	Apr. 30, 2013
Numerator:
Net income attributable to HEICO	$ 28,367	$ 23,700	$ 55,822	$ 43,658
Denominator:
Weighted average common shares outstanding - basic (in shares)	66,437	66,294	66,415	66,242
Effect of dilutive stock options (in shares)	1,018	578	988	593
Weighted average common shares outstanding - diluted (in shares)	67,455	66,872	67,403	66,835
Earnings Per Share, Basic	$ 0.43	$ 0.36	$ 0.84	$ 0.66
Earnings Per Share, Diluted	$ 0.42	$ 0.35	$ 0.83	$ 0.65
Anti-dilutive stock options excluded	305	747	425	841