GOODWILL AND OTHER INTANGIBLE ASSETS (Goodwill) (Details) $ in Thousands	3 Months Ended
Jan. 31, 2019 USD ($)
Goodwill [Line Items]
Opening Balance	$ 1,114,832
Goodwill acquired	55,020
Foreign currency translation adjustments	674
Adjustments to goodwill	(125)
Ending Balance	1,170,401
Flight Support Group [Member]
Goodwill [Line Items]
Opening Balance	398,694
Goodwill acquired	0
Foreign currency translation adjustments	186
Adjustments to goodwill	(125)
Ending Balance	398,755
Electronic Technologies Group [Member]
Goodwill [Line Items]
Opening Balance	716,138
Goodwill acquired	55,020
Foreign currency translation adjustments	488
Adjustments to goodwill	0
Ending Balance	$ 771,646

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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