CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - UNAUDITED - USD ($) $ in Thousands	6 Months Ended
	Apr. 30, 2023	Apr. 30, 2022
Operating Activities:
Net income from consolidated operations	$ 218,065	$ 187,364
Adjustments to reconcile net income from consolidated operations to net cash provided by (used in) operating activities:
Depreciation and amortization	56,784	46,707
Employer contributions to HEICO Savings and Investment Plan	6,533	5,364
Share-based compensation expense	6,055	6,855
Change in value of contingent consideration	1,842	(1,773)
Business Combination, Reversal of Remaining Contingent Consideration, Liability	(9,057)	0
Payment for Contingent Consideration Liability, Operating Activities	(6,299)	0
Deferred income tax provision (benefit)	(9,596)	2,080
Changes in operating assets and liabilities, net of acquisitions:
Change in accounts receivable	(21,222)	(20,263)
Change in contract assets	(9,267)	1,778
Change in inventories	(75,251)	(42,766)
Change in prepaid expenses and other current assets	1,738	(8,974)
Change in trade accounts payable	6,797	8,137
Change in accrued expenses and other current liabilities	(2,671)	(15,946)
Change in income taxes payable	(13,824)	(9,343)
Change in other long-term liabilities and assets related to HEICO Leadership Compensation Plan	10,563	13,356
Other	(6,754)	2,177
Net cash provided by operating activities	154,436	174,753
Investing Activities:
Acquisitions, net of cash acquired	(524,231)	(105,533)
Capital expenditures	(21,921)	(16,211)
Net Investment Related to Deferred Compensation Plan	(14,000)	(11,700)
Other	362	(10,511)
Net cash used in investing activities	(559,790)	(143,955)
Financing Activities:
Proceeds from Long-term Lines of Credit	556,000	93,000
Payments on revolving credit facility	(108,000)	(65,000)
Distributions to noncontrolling interests	(22,650)	(10,576)
Common Stock Issued Repurchased and Retired Related To Stock Option Exercises	(14,811)	(23,692)
Cash dividends paid	(13,668)	(12,227)
Payment for Contingent Consideration Liability, Financing Activities	(12,610)	0
Payments to Noncontrolling Interests	(2,733)	0
Proceeds from stock option exercises	4,074	1,610
Other	3,163	(1,220)
Net cash (used in) provided by financing activities	388,765	(18,105)
Effect of exchange rate changes on cash	4,246	(3,673)
Net (decrease) increase in cash and cash equivalents	(12,343)	9,020
Cash and cash equivalents at beginning of year	139,504	108,298
Cash and cash equivalents at end of period	$ 127,161	$ 117,318