Schedule of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) (USD $) In Thousands, unless otherwise specified	Aug. 01, 2014	Oct. 25, 2013
Level 2
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Embedded derivatives, Assets	$ 1,222	$ 706
Embedded derivatives, Liabilities	518	344
Level 3
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Contingent purchase obligation	5,000	4,000
Designated as Hedging Instrument | Level 2
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Derivative contracts designated as hedging instruments	1,381	2,270
Derivative contracts designated as hedging instruments	8,129	4,541
Not Designated as Hedging Instrument | Level 2
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Derivative contracts not designated as hedging instruments	2,763	3,670
Derivative contracts not designated as hedging instruments	$ 941	$ 122