CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Aug. 03, 2018	Jul. 28, 2017	Jul. 29, 2016
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME [Abstract]
Net income	$ 247,620	$ 201,899	$ 189,299
Other comprehensive income (loss) before income tax expense (benefit):
Change in fair value of interest rate swaps	13,103	15,402	(16,188)
Income tax expense (benefit)	4,189	5,891	(6,173)
Other comprehensive income (loss), net of tax	8,914	9,511	(10,015)
Comprehensive income	$ 256,534	$ 211,410	$ 179,284