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, 2015	Apr. 30, 2014	Apr. 30, 2015	Apr. 30, 2014
Numerator:
Net income attributable to HEICO	$ 33,105us-gaap_NetIncomeLoss	$ 28,367us-gaap_NetIncomeLoss	$ 60,745us-gaap_NetIncomeLoss	$ 55,822us-gaap_NetIncomeLoss
Denominator:
Weighted Average Number of Shares Outstanding, Basic	66,711	66,437	66,653	66,415
Effect of dilutive stock options	1,090	1,018	1,082	988
Weighted Average Number of Shares Outstanding, Diluted	67,801	67,455	67,735	67,403
Earnings Per Share, Basic	$ 0.50us-gaap_EarningsPerShareBasic	$ 0.43us-gaap_EarningsPerShareBasic	$ 0.91us-gaap_EarningsPerShareBasic	$ 0.84us-gaap_EarningsPerShareBasic
Earnings Per Share, Diluted	$ 0.49us-gaap_EarningsPerShareDiluted	$ 0.42us-gaap_EarningsPerShareDiluted	$ 0.90us-gaap_EarningsPerShareDiluted	$ 0.83us-gaap_EarningsPerShareDiluted
Anti-dilutive stock options excluded	305	305	305	425

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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