GOODWILL AND OTHER INTANGIBLE ASSETS (Goodwill) (Details) $ in Thousands	3 Months Ended
Jan. 31, 2021 USD ($)
Goodwill [Line Items]
Opening Balance	$ 1,383,167
Foreign currency translation adjustments	4,671
Adjustments to goodwill	208
Ending Balance	1,388,046
Flight Support Group [Member]
Goodwill [Line Items]
Opening Balance	427,565
Foreign currency translation adjustments	1,903
Adjustments to goodwill	(33)
Ending Balance	429,435
Electronic Technologies Group [Member]
Goodwill [Line Items]
Opening Balance	955,602
Foreign currency translation adjustments	2,768
Adjustments to goodwill	241
Ending Balance	$ 958,611

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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-Name Accounting Standards Codification
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