CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Aug. 01, 2015	Aug. 02, 2014
Statement of Financial Position [Abstract]
Accounts receivable, allowance	$ 7,489	$ 7,589
Intangible assets, accumulated amortization	$ 25,717	$ 19,002
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, authorized shares	5,000,000	5,000,000
Preferred stock, issued shares	0	0
Preferred stock, outstanding shares	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized shares	100,000,000	100,000,000
Common stock, issued shares	50,096,000	49,771,000
Common stock, outstanding shares	50,096,000	49,771,000