Accumulated Other Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands	Jul. 31, 2015	Oct. 31, 2014
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Cumulative currency translation adjustments	$ (81,002)	$ (50,941)
Unrealized gain (loss) on derivative instruments, net of taxes	(14,852)	(11,148)
Unrealized gain (loss) on available-for-sale securities, net of taxes	(11)	0
Total accumulated other comprehensive income (loss)	$ (95,865)	$ (62,089)	[1]

[1] Derived from audited financial statements.