Acquisitions (Business Acquisition, Pro Forma Information) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Oct. 28, 2012	Oct. 30, 2011	Oct. 28, 2012	Oct. 30, 2011
Revenue	$ 160,878	$ 157,049	$ 452,464	$ 469,959
Net income	$ 20,835	$ 18,496	$ 35,503	$ 42,000