CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Aug. 02, 2014	Aug. 03, 2013
Statement of Financial Position [Abstract]
Accounts receivable, allowance	$ 7,589	$ 9,271
Intangible assets, accumulated amortization	$ 19,002	$ 14,214
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	49,771,000	49,330,000
Common stock, outstanding shares	49,771,000	49,330,000