INTEREST AND OTHER INCOME (LOSS), NET (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 30, 2017	Apr. 30, 2016	Apr. 30, 2017	Apr. 30, 2016
Other Income and Expenses [Abstract]
Interest income	$ 1,507	$ 982	$ 2,789	$ 1,668
Losses on non-hedge designated foreign currency forward contracts	(2,749)	(10,600)	(1,725)	(15,213)
Foreign currency exchange gain (loss)	1,292	10,506	(1,125)	6,130
Modification of term loan	(2,924)	0	(2,924)	0
Other	(44)	79	437	(394)
Interest and other income (loss), net	$ (2,918)	$ 967	$ (2,548)	$ (7,809)