Impairment Charges (Narrative) (Details) (USD $)	3 Months Ended		12 Months Ended
	Jan. 30, 2010	Aug. 01, 2009	Jan. 28, 2012	Jan. 29, 2011	Jan. 30, 2010
Property, Plant and Equipment [Line Items]
Impairment charges	$ 2,000,000		$ 2,073,000	$ 1,868,000	$ 15,026,000
Non-cash impairment charges		3,800,000	2,100,000	1,900,000	15,000,000
Impairment Of Note Receivable [Member]
Property, Plant and Equipment [Line Items]
Impairment charges		$ 25,800,000			$ 5,834,000