NET INCOME PER SHARE ATTRIBUTABLE TO HEICO SHAREHOLDERS (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
Jan. 31, 2015	Jan. 31, 2014
Numerator:
Net income attributable to HEICO	$ 27,640us-gaap_NetIncomeLoss	$ 27,455us-gaap_NetIncomeLoss
Denominator:
Weighted Average Number of Shares Outstanding, Basic	66,595	66,393
Effect of dilutive stock options	1,074	959
Weighted Average Number of Shares Outstanding, Diluted	67,669	67,352
Earnings Per Share, Basic	$ 0.42us-gaap_EarningsPerShareBasic	$ 0.41us-gaap_EarningsPerShareBasic
Earnings Per Share, Diluted	$ 0.41us-gaap_EarningsPerShareDiluted	$ 0.41us-gaap_EarningsPerShareDiluted
Anti-dilutive stock options excluded	305	544

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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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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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