Condensed Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 25, 2015	Oct. 26, 2014	Oct. 25, 2015	Oct. 26, 2014
Net income	$ 10,704	$ 17,623	$ 10,250	$ 43,388
Other comprehensive income (loss), before tax:
Change in unrealized holding income on available-for-sale investments	0	0	0	(1)
Change in unrealized loss on interest rate cap	0	(90)	(33)	(251)
Reclassification to interest expense	203	71	471	151
Other comprehensive income (loss), before tax	203	(19)	438	(101)
Provision for taxes related to items of other comprehensive loss	(74)	(26)	(172)	(14)
Other comprehensive income (loss), net of tax	129	(45)	266	(115)
Total comprehensive income	$ 10,833	$ 17,578	$ 10,516	$ 43,273