Derivative Financial Instruments - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	May 09, 2015	May 10, 2014	May 09, 2015	May 10, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative losses recorded in Accumulated other comprehensive loss	$ 11,500,000
Net derivative losses amortized into Interest expense	(42,000)	(42,000)	(126,000)	(126,000)
Net derivative loss expected to be reclassified over next 12 months	$ 1,200,000		$ 1,200,000