Unaudited Consolidated Condensed Statements Of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Oct. 27, 2013	Oct. 28, 2012	Oct. 27, 2013	Oct. 28, 2012
Net income	$ 12,453	$ 16,590	$ 46,342	$ 28,821
Other comprehensive income (loss), before tax:
Change in unrealized holding income (loss) on available-for-sale investments	3	(4)	(5)	(37)
Change in unrealized loss on interest rate cap	(255)	(194)	(208)	(499)
Less: Reclassification adjustments for losses on interest rate cap included in interest expense	(27)	0	(46)	0
Change in cumulative translation adjustment	0	84	0	203
Other comprehensive loss, before tax	(225)	(114)	(167)	(333)
Provision for taxes related to items of other comprehensive loss	82	72	61	189
Other comprehensive loss, net of tax	(143)	(42)	(106)	(144)
Comprehensive income	$ 12,310	$ 16,548	$ 46,236	$ 28,677