GOODWILL AND OTHER INTANGIBLE ASSETS, Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
Oct. 31, 2021	Oct. 31, 2020
Goodwill [Roll Forward]
Opening Balances	$ 1,383,167	$ 1,268,703
Goodwill acquired	66,450	114,380
Foreign currency translation adjustments	(767)	(4,618)
Deconsolidation of subsidiary		(4,249)
Adjustments to goodwill	11	(285)
Ending Balances	1,450,395	1,383,167
Flight Support Group [Member]
Goodwill [Roll Forward]
Opening Balances	427,565	410,044
Goodwill acquired	40,308	14,979
Foreign currency translation adjustments	(227)	(2,542)
Adjustments to goodwill	188
Ending Balances	468,288	427,565
Electronic Technologies Group [Member]
Goodwill [Roll Forward]
Opening Balances	955,602	858,659
Goodwill acquired	26,142	99,401
Foreign currency translation adjustments	(540)	(2,076)
Deconsolidation of subsidiary		(4,249)
Adjustments to goodwill	(177)	(285)
Ending Balances	$ 982,107	$ 955,602

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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