Accumulated Other Comprehensive Income - Components of Accumulated Other Comprehensive Income (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2014	Jul. 31, 2013
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			$ 73,918	$ 86,412
Net loss reclassified to COGS	690	(2,142)	(367)	(4,420)
Changes in fair value, net of tax			(10,182)	(6,272)
Ending balance	63,369	75,659	63,369	75,659
Reclassification out of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Net loss reclassified to COGS			(367)	(4,420)
Net loss reclassified to foreign currency loss				(61)
Derivative Instruments [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			(4,591)	5,756
Changes in fair value, net of tax			1,136	794
Ending balance	(3,822)	2,069	(3,822)	2,069
Derivative Instruments [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Net loss reclassified to COGS			(367)	(4,420)
Net loss reclassified to foreign currency loss				(61)
Foreign Currency Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			78,509	80,656
Changes in fair value, net of tax			(11,318)	(7,066)
Ending balance	67,191	73,590	67,191	73,590
Foreign Currency Adjustments [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Net loss reclassified to COGS			0	0
Net loss reclassified to foreign currency loss				$ 0