CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY - 6 months ended Jan. 28, 2017 - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid in Capital	Accumulated Other Comprehensive (Loss) Income	Retained Earnings
Beginning Balance (shares) at Jul. 30, 2016	50,383	50,383
Beginning Balance at Jul. 30, 2016	$ 1,519,504	$ 504	$ 436,167	$ (22,379)	$ 1,105,212
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock option exercises and restricted stock vestings, net of tax		209
Stock option exercises and restricted stock vestings, net of tax	(1,026)	$ 2	(1,028)
Share-based compensation	14,011		14,011
Tax deficit associated with stock plans	(1,413)		(1,413)
Fair value of swap agreements, net of tax	5,078			5,078
Foreign currency translation adjustments	(620)			(620)
Net income	$ 54,699				54,699
Ending Balance (shares) at Jan. 28, 2017	50,592	50,592
Ending Balance at Jan. 28, 2017	$ 1,590,233	$ 506	$ 447,737	$ (17,921)	$ 1,159,911