Effect of Derivative Financial Instruments on Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands	3 Months Ended
Oct. 29, 2016	Oct. 31, 2015
Derivative Instruments, Gain (Loss) [Line Items]
Gains / (Losses) Recognized in OCI on Derivative (Effective Portion)	$ 114	$ (23)
Gains / (Losses) Reclassified from Accumulated OCI into Income (Effective Portion)	(1,596)	(992)
Interest rate derivatives \| Interest rate caps \| Interest Expense
Derivative Instruments, Gain (Loss) [Line Items]
Gains / (Losses) Recognized in OCI on Derivative (Effective Portion)		(1)
Gains / (Losses) Reclassified from Accumulated OCI into Income (Effective Portion)	(1,369)	(1,044)
Foreign exchange derivatives \| Forward foreign exchange contracts \| Cost of Goods Sold
Derivative Instruments, Gain (Loss) [Line Items]
Gains / (Losses) Recognized in OCI on Derivative (Effective Portion)	114	(22)
Gains / (Losses) Reclassified from Accumulated OCI into Income (Effective Portion)	$ (227)	$ 52

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No definition available.

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- Definition

The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4D
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624177-113959

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- Definition

The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period.

+ References

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