CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Feb. 01, 2019	Jan. 26, 2018	Feb. 01, 2019	Jan. 26, 2018
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) [Abstract]
Net income	$ 60,755	$ 91,139	$ 107,962	$ 137,519
Other comprehensive (loss) income before income tax (benefit) expense:
Change in fair value of interest rate swaps	(5,371)	5,394	(3,672)	8,449
Income tax (benefit) expense	(1,332)	1,855	(926)	3,023
Other comprehensive (loss) income, net of tax	(4,039)	3,539	(2,746)	5,426
Total comprehensive income (loss)	$ 56,716	$ 94,678	$ 105,216	$ 142,945