Credit Facilities (Details) (USD $)	3 Months Ended
	May 05, 2013	Feb. 03, 2013	Apr. 29, 2012
Line of Credit Facility [Line Items]
Restricted Cash and Cash Equivalents, Current	$ 71,226,000	$ 71,916,000	$ 71,929,000
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Revolving credit facility	100,000,000
Revolving credit facility expiration date	Mar. 23, 2017
Annual fee rate on unused line of credit payable to lenders	0.20%
Letter Of Credit Issuances, Interest Rate	0.00625
Borrowings	0	0	0
Letter of credit issuances outstanding	17,900,000	17,900,000	24,400,000
Revolving Credit Facility [Member] | LIBOR [Member]
Line of Credit Facility [Line Items]
Interest rate: Basis spread on LIBOR/Base Rate	1.25%
Line of credit facility, interest rate description	LIBOR plus 1.25%
Revolving Credit Facility [Member] | Base Rate [Member]
Line of Credit Facility [Line Items]
Interest rate: Basis spread on LIBOR/Base Rate	0.25%
Line of credit facility, interest rate description	Base Rate plus 0.25%. The Base Rate is defined as the highest of the following rates: the Federal Funds Rate plus 0.5%, the Adjusted LIBOR plus 1.0%, or the Prime Rate.
Revolving Credit Facility [Member] | Federal Funds [Member]
Line of Credit Facility [Line Items]
Interest rate: Basis spread on LIBOR/Base Rate	0.50%
Revolving Credit Facility [Member] | Adjusted LIBOR [Member]
Line of Credit Facility [Line Items]
Interest rate: Basis spread on LIBOR/Base Rate	1.00%
Stand-alone Letter of Credit [Member]
Line of Credit Facility [Line Items]
Letter of credit issuances outstanding	69,200,000	69,800,000	69,800,000
Restricted Cash and Cash Equivalents, Current	71,200,000	71,900,000	71,900,000
Stand-alone letter of credit facility	$ 100,000,000
Fee rate on outstanding stand alone letter of credit	0.175%
Stand-alone letter of credit facility expiration date	March 23, 2017
Advance rate of letter of credit	103.00%