SHAREHOLDERS' EQUITY (Details Textuals) - USD ($) $ in Thousands		12 Months Ended
	Aug. 04, 2023	Oct. 31, 2025	Oct. 31, 2024	Oct. 31, 2023
Stockholders' Equity Note [Abstract]
Stock repurchase program, number of shares authorized to be repurchased (in shares)		4,886,353
Heico Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation		53,294	68,494	61,658
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation		$ 16,900	$ 18,200	$ 10,400
Common Class A [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation		23,198	62,215	33,992
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation		$ 5,500	$ 11,800	$ 4,400
Wencor | Common Class A [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Issued During Period, Shares, Acquisitions	1,137,628
Stock Issued During Period, Shares, Acquisitions, Registered Portion	1,054,606
Noncontrolling Interest [Line Items]
Stock Issued During Period, Shares, Acquisitions	1,137,628