Debt (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Apr. 28, 2012	Feb. 02, 2013	Jan. 28, 2012
Line of Credit Facility [Line Items]
Number of unsecured credit facilities	2		2
Expiration date of renewed facility		August and November 2012
Available borrowings under credit facilities	$ 80.0
Days borrowings incurred against facilities	0		0
Average borrowings outstanding	0		0
Maximum borrowings outstanding	0		0
Average interest rate on outstanding borrowings	0.00%		0.00%
Debt outstanding at period end	0		0
Subsequent Event [Line Items]
Expiration date of renewed facility		August and November 2012
August 2011 Facility [Member]
Line of Credit Facility [Line Items]
Maximum borrowing capacity under renewed facility	30.0
Interest rate under renewed facility	higher of prime rate, the federal funds rate plus 0.5% or LIBOR
Subsequent Event [Line Items]
Maximum borrowing capacity under renewed facility	30.0
Interest rate under renewed facility	higher of prime rate, the federal funds rate plus 0.5% or LIBOR
November 2011 Facility [Member]
Line of Credit Facility [Line Items]
Maximum borrowing capacity under renewed facility	50.0
Interest rate under renewed facility	prime plus 2%
Subsequent Event [Line Items]
Maximum borrowing capacity under renewed facility	$ 50.0
Interest rate under renewed facility	prime plus 2%