GOODWILL AND OTHER INTANGIBLE ASSETS (Goodwill) (Details) $ in Thousands	6 Months Ended
Apr. 30, 2020 USD ($)
Goodwill [Line Items]
Opening Balance	$ 1,268,703
Goodwill acquired	34,173
Foreign currency translation adjustments	(2,404)
Adjustments to goodwill	(285)
Ending Balance	1,300,187
Flight Support Group [Member]
Goodwill [Line Items]
Opening Balance	410,044
Foreign currency translation adjustments	(569)
Ending Balance	409,475
Electronic Technologies Group [Member]
Goodwill [Line Items]
Opening Balance	858,659
Goodwill acquired	34,173
Foreign currency translation adjustments	(1,835)
Adjustments to goodwill	(285)
Ending Balance	$ 890,712

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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