Shareholders' Equity (Narrative) (Details) - shares	12 Months Ended			65 Months Ended
	Jan. 28, 2017	Jan. 30, 2016	Jan. 31, 2015	Jan. 28, 2017	Aug. 25, 2011
Shareholders' Equity [Line Items]
Stock Repurchase Program, Authorized Amount					2,500,000
Shares repurchased during period under share repurchase program	900,000	151,500	0	1,100,000
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased	1,400,000			1,400,000
Repurchases Related To Employee Share Based Awards [Member]
Shareholders' Equity [Line Items]
Exercised	205,569	222,110	172,471