Credit Facility (Details) (USD $) In Thousands, unless otherwise specified			0 Months Ended
	Jan. 28, 2012	Jan. 29, 2011	Apr. 29, 2011 Amended Credit Agreement [Member]
Line of Credit Facility [Line Items]
Credit facility, borrowing capacity			$ 1,000,000
Credit facility maturity term, in years			5
Increase in commitments under the Amended Credit Agreement, maximum			300,000
Percentage of Loan Cap under Amended Credit Agreement			10.00%
Amount of Loan Cap under Amended Credit Agreement			50,000
Line of Credit Facility, Amount Outstanding	$ 101,600	$ 304,400