Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jan. 27, 2013	Jan. 29, 2012	Jan. 30, 2011
Net income	$ 41,939	$ 89,087	$ 72,572
Other comprehensive (loss) income, before tax:
Change in net unrealized holding loss on available-for-sale investments	(42)	(262)	(117)
Change in unrealized loss on interest rate cap	(556)	0	0
Change in cumulative translation adjustment	203	(4)	1
Other comprehensive loss, before tax	(395)	(266)	(116)
Benefit for taxes related to items of other comprehensive (loss) income	213	58	41
Other comprehensive loss, net of tax	(182)	(208)	(75)
Total comprehensive income, net of tax	$ 41,757	$ 88,879	$ 72,497