Consolidated Statements of Comprehensive Income (Loss) Statement (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2013	Oct. 31, 2012	Oct. 31, 2011
Statement of Comprehensive Income [Abstract]
Net loss	$ (85,431)	$ (144,021)	$ (195,521)
Change in unrealized gain (loss) on available-for-sale securities, net of tax	(14)	(166)	393
Change in unrealized gain (loss) on foreign currency forward contracts, net of tax	(310)	49	0
Change in accumulated translation adjustments	(4,096)	(3,268)	(1,424)
Total comprehensive loss	$ (89,851)	$ (147,406)	$ (196,552)