GOODWILL AND OTHER INTANGIBLE ASSETS (Goodwill) (Details) $ in Thousands	9 Months Ended
Jul. 31, 2018 USD ($)
Goodwill [Line Items]
Opening Balance	$ 1,081,306
Goodwill acquired	22,831
Foreign currency translation adjustments	334
Adjustments to goodwill	(2,119)
Ending Balance	1,102,352
Flight Support Group [Member]
Goodwill [Line Items]
Opening Balance	388,606
Goodwill acquired	0
Foreign currency translation adjustments	270
Adjustments to goodwill	972
Ending Balance	389,848
Electronic Technologies Group [Member]
Goodwill [Line Items]
Opening Balance	692,700
Goodwill acquired	22,831
Foreign currency translation adjustments	64
Adjustments to goodwill	(3,091)
Ending Balance	$ 712,504

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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