Borrowings (Details) (USD $)	3 Months Ended	6 Months Ended						6 Months Ended		6 Months Ended
	Aug. 03, 2013	Aug. 03, 2013 quarters	Jul. 28, 2012	Aug. 03, 2013 Amended and Restated Credit Agreement [Member]	Jul. 28, 2011 Amended and Restated Credit Agreement [Member]	Aug. 03, 2013 Amended and Restated Credit Agreement [Member] Federal Funds Open Rate Plus 1/2 of 1% [Member] Federal Funds Open Rate [Member]	Aug. 03, 2013 Amended and Restated Credit Agreement [Member] Daily Adjusted Eurodollar Rate Plus 1.0% [Member] Daily Adjusted Eurodollar Rate [Member]	Aug. 03, 2013 Amended and Restated Credit Agreement [Member] Minimum [Member]	Aug. 03, 2013 Amended and Restated Credit Agreement [Member] Maximum [Member]	Aug. 03, 2013 Term Loan Agreement [Member]	Jan. 23, 2013 Term Loan Agreement [Member]	Feb. 24, 2012 Term Loan Agreement [Member]	Aug. 03, 2013 Term Loan Agreement [Member] Minimum [Member]
Line of Credit Facility [Line Items]
Unsecured credit agreement amount					$ 350,000,000						$ 150,000,000	$ 300,000,000
Interest period								3 months
Period following commencement of interest period				3 months
Debt instrument, basis spread on variable rate						0.50%	1.00%
Forward minimum rent commitment ratio	600.00%	600.00%
Percentage facility fees accrue								0.125%	0.30%
Leverage ratio under credit facility									3.75
EBITDAR look back period (in consecutive fiscal quarter periods)		4
Minimum rent and contingent store rent for coverage ratio under credit facility													1.75
Quarterly amortization payment, principal										3,750,000
Final repayment										90,000,000
Borrowings	142,500,000	142,500,000								142,500,000
Interest expense, total	$ 1,100,000	$ 2,100,000	$ 1,500,000