GOODWILL AND OTHER INTANGIBLE ASSETS (Goodwill) (Details) $ in Thousands	6 Months Ended
Apr. 30, 2019 USD ($)
Goodwill [Line Items]
Opening Balance	$ 1,114,832
Goodwill acquired	74,161
Foreign currency translation adjustments	(1,587)
Adjustments to goodwill	(125)
Ending Balance	1,187,281
Flight Support Group [Member]
Goodwill [Line Items]
Opening Balance	398,694
Goodwill acquired	12,476
Foreign currency translation adjustments	(890)
Adjustments to goodwill	(125)
Ending Balance	410,155
Electronic Technologies Group [Member]
Goodwill [Line Items]
Opening Balance	716,138
Goodwill acquired	61,685
Foreign currency translation adjustments	(697)
Adjustments to goodwill	0
Ending Balance	$ 777,126

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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