CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Jul. 30, 2016	Jul. 25, 2015	Jul. 26, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 128,740	$ 84,324	$ 39,978
Foreign currency translation losses, net of tax	(76)	(1,040)	(261)
Comprehensive income	$ 128,664	$ 83,284	$ 39,717