CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	May 02, 2014	May 03, 2013	May 02, 2014	May 03, 2013
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) [Abstract]
Net income	$ 28,728	$ 24,602	$ 92,943	$ 82,962
Other comprehensive income before income tax expense:
Change in fair value of interest rate swaps	1,984	4,982	3,361	17,493
Income tax expense	766	1,921	1,296	6,711
Other comprehensive income, net of tax	1,218	3,061	2,065	10,782
Comprehensive income	$ 29,946	$ 27,663	$ 95,008	$ 93,744