GOODWILL AND OTHER INTANGIBLE ASSETS (Goodwill) (Details) $ in Thousands	6 Months Ended
Apr. 30, 2021 USD ($)
Goodwill [Line Items]
Opening Balance	$ 1,383,167
Goodwill acquired	11,428
Foreign currency translation adjustments	4,962
Adjustments to goodwill	491
Ending Balance	1,400,048
Flight Support Group [Member]
Goodwill [Line Items]
Opening Balance	427,565
Foreign currency translation adjustments	1,970
Adjustments to goodwill	188
Ending Balance	429,723
Electronic Technologies Group [Member]
Goodwill [Line Items]
Opening Balance	955,602
Goodwill acquired	11,428
Foreign currency translation adjustments	2,992
Adjustments to goodwill	303
Ending Balance	$ 970,325

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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