GOODWILL AND OTHER INTANGIBLE ASSETS (Goodwill) (Details) $ in Thousands	3 Months Ended
Jan. 31, 2020 USD ($)
Goodwill [Line Items]
Opening Balance	$ 1,268,703
Goodwill acquired	33,268
Foreign currency translation adjustments	(740)
Adjustments to goodwill	85
Ending Balance	1,301,316
Flight Support Group [Member]
Goodwill [Line Items]
Opening Balance	410,044
Goodwill acquired	0
Foreign currency translation adjustments	(200)
Adjustments to goodwill	0
Ending Balance	409,844
Electronic Technologies Group [Member]
Goodwill [Line Items]
Opening Balance	858,659
Goodwill acquired	33,268
Foreign currency translation adjustments	(540)
Adjustments to goodwill	85
Ending Balance	$ 891,472

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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