CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended
	Jan. 31, 2016	Jan. 31, 2015
Net loss	$ (11,546)	$ (18,779)
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Change in unrealized gain on available-for-sale securities, net of tax	22	36
Change in cumulative translation adjustment	(2,823)	(12,248)
Other comprehensive loss	(5,650)	(19,290)
Total comprehensive loss	(17,196)	(38,069)
Foreign Exchange Forward | Cash Flow Hedging
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Change in unrealized loss on foreign currency forward contracts and forward starting interest rate swaps, net of tax	(2,520)	(4,513)
Interest Rate Swap | Cash Flow Hedging | Designated as Hedging Instrument
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Change in unrealized loss on foreign currency forward contracts and forward starting interest rate swaps, net of tax	$ (329)	$ (2,565)