GOODWILL AND OTHER INTANGIBLE ASSETS (Goodwill) (Details) $ in Thousands	6 Months Ended
	Apr. 30, 2016 USD ($)
Goodwill [Line Items]
Balances as of October 31, 2015	$ 766,639
Goodwill acquired	98,641
Foreign currency translation adjustments	2,974
Adjustments to goodwill	315
Balances as of April 30, 2016	868,569
Flight Support Group [Member]
Goodwill [Line Items]
Balances as of October 31, 2015	337,507
Goodwill acquired	0
Foreign currency translation adjustments	983
Adjustments to goodwill	287
Balances as of April 30, 2016	338,777
Electronic Technologies Group [Member]
Goodwill [Line Items]
Balances as of October 31, 2015	429,132
Goodwill acquired	98,641
Foreign currency translation adjustments	1,991
Adjustments to goodwill	28
Balances as of April 30, 2016	$ 529,792