CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - UNAUDITED - USD ($) $ in Thousands	9 Months Ended
	Jul. 31, 2017	Jul. 31, 2016
Operating Activities:
Net income from consolidated operations	$ 148,573	$ 126,629
Adjustments to reconcile net income from consolidated operations to net cash provided by (used in) operating activities:
Depreciation and amortization	46,912	44,603
Employer contributions to HEICO Savings and Investment Plan	5,732	5,219
Share-based compensation expense	5,207	4,905
Change in value of contingent consideration	1,227	2,635
Foreign currency transaction adjustments, net	3,316	876
Deferred income tax provision (benefit)	(6,998)	(6,053)
Tax benefit from stock option exercises	0	867
Excess tax benefit from stock option exercises	0	(880)
Changes in operating assets and liabilities, net of acquisitions:
Change in accounts receivable	13,343	(2,974)
Change in inventories	(22,415)	(13,914)
Change in prepaid expenses and other current assets	(3,722)	(1,943)
Change in trade accounts payable	(3,561)	(2,629)
Change in accrued expenses and other current liabilities	(1,476)	15,630
Change in income taxes payable	(5,423)	1,775
Other	(1,412)	(2,330)
Net cash provided by operating activities	179,303	172,416
Investing Activities:
Acquisitions, net of cash acquired	(95,759)	(263,811)
Capital expenditures	(20,445)	(23,113)
Other	(685)	(3,005)
Net cash used in investing activities	(116,889)	(289,929)
Financing Activities:
Borrowings on revolving credit facility	87,000	260,000
Payments on revolving credit facility	(113,000)	(118,000)
Distributions to noncontrolling interests	(12,924)	(16,156)
Cash dividends paid	(12,807)	(10,724)
Payment of contingent consideration	(7,039)	(6,960)
Acquisitions of noncontrolling interests	(3,848)	(3,599)
Proceeds from stock option exercises	4,171	4,831
Excess tax benefit from stock option exercises		880
Payments of Debt Restructuring Costs	(270)
Other	(241)	(272)
Net cash (used in) provided by financing activities	(58,958)	110,000
Effect of exchange rate changes on cash	3,078	1,101
Net (decrease) increase in cash and cash equivalents	6,534	(6,412)
Cash and cash equivalents at beginning of year	42,955	33,603
Cash and cash equivalents at end of period	$ 49,489	$ 27,191