Accumulated Other Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands	Apr. 30, 2018	Oct. 31, 2017
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Cumulative currency translation adjustments	$ (60,449)	$ (70,407)
Unrealized gain (loss) on derivative instruments, net of taxes	(1,940)	4,428
Total accumulated other comprehensive income (loss)	$ (62,389)	$ (65,979)