INTEREST AND OTHER INCOME (LOSS), NET (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2017	Jul. 31, 2016	Jul. 31, 2017	Jul. 31, 2016
Other Income and Expenses [Abstract]
Interest income	$ 1,820	$ 1,250	$ 4,609	$ 2,918
Gains (losses) on non-hedge designated foreign currency forward contracts	834	(4,787)	(891)	(20,000)
Foreign currency exchange gain (loss)	(2,946)	(839)	(4,071)	5,291
Modification of term loan	0	0	(2,924)	0
Other	(556)	729	(119)	335
Interest and other income (loss), net	$ (848)	$ (3,647)	$ (3,396)	$ (11,456)