CONDENSED CONSOLIDATED BALANCE SHEETS - UNAUDITED - USD ($) shares in Thousands, $ in Thousands	Apr. 30, 2024	Oct. 31, 2023
Current assets:
Cash and cash equivalents	$ 204,161	$ 171,048
Accounts receivable, net	504,362	509,075
Contract assets	110,158	111,702
Inventories, net	1,088,101	1,013,680
Prepaid expenses and other current assets	61,919	49,837
Total current assets	1,968,701	1,855,342
Property, plant and equipment, net	326,740	321,848
Goodwill	3,285,468	3,274,327
Intangible assets, net	1,333,337	1,357,281
Other assets	451,599	386,265
Total assets	7,365,845	7,195,063
Current liabilities:
Debt, Current	4,382	17,801
Trade accounts payable	194,875	205,893
Accrued expenses and other current liabilities	353,874	433,101
Income taxes payable	6,032	8,547
Total current liabilities	559,163	665,342
Long-term debt, net of current maturities	2,385,267	2,460,277
Deferred income taxes	119,987	131,846
Other long-term liabilities	490,253	379,640
Total liabilities	3,554,670	3,637,105
Commitments and contingencies
Redeemable noncontrolling interests	368,369	364,807
Shareholders' equity:
Preferred Stock, $.01 par value per share; 10,000 shares authorized; none issued	0	0
Capital in excess of par value	598,699	578,809
Deferred compensation obligation	6,318	6,318
HEICO stock held by irrevocable trust	(6,318)	(6,318)
Accumulated other comprehensive loss	(35,677)	(40,180)
Retained earnings	2,825,021	2,605,984
Total HEICO shareholders' equity	3,389,427	3,145,995
Noncontrolling interests	53,379	47,156
Total shareholders' equity	3,442,806	3,193,151
Total liabilities and equity	$ 7,365,845	$ 7,195,063
Preferred Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Preferred Stock, Shares Authorized	10,000	10,000
Preferred Stock, Shares Issued	0	0
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares Authorized	150,000	150,000
Common Stock, Shares, Issued	54,828	54,721
Common Stock, Shares, Outstanding	54,828	54,721
Class A Common Stock [Member]
Shareholders' equity:
Common Stock	$ 836	$ 835
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares Authorized	150,000	150,000
Common Stock, Shares, Issued	83,644	83,507
Common Stock, Shares, Outstanding	83,644	83,507
Heico Common Stock [Member]
Shareholders' equity:
Common Stock	$ 548	$ 547