Business Organization And Significant Accounting Policies (Narrative) (Details) (USD $)	12 Months Ended
	Jan. 28, 2012 stores	Jan. 29, 2011	Jan. 30, 2010
Business Organization And Significant Accounting Policies [Line Items]
Number of stores	1,256
Amortization expense	$ 1,600,000
Expected amortization expense 2012	4,400,000
Expected amortization expense 2013	4,400,000
Expected amortization expense 2014	4,400,000
Expected amortization expense 2015	4,400,000
Expected amortization expense 2016	4,400,000
Shipping and handling amounts received from customers	10,500,000	11,200,000	9,600,000
Tax benefit qualifying position threshold of likelihood of being realized	50.00%
Advertising expense	110,600,000	86,800,000	65,000,000
Anti-dilutive securities excluded from computation of diluted EPS	3,823,166	3,280,324	3,132,586
Leasehold Improvements [Member]
Business Organization And Significant Accounting Policies [Line Items]
Estimated useful life, maximum, years	10
Maximum [Member]
Business Organization And Significant Accounting Policies [Line Items]
Construction period prior to store opening, days	90
Minimum [Member]
Business Organization And Significant Accounting Policies [Line Items]
Construction period prior to store opening, days	60
Catalogs [Member]
Business Organization And Significant Accounting Policies [Line Items]
Advertising costs amortization period, maximum, weeks	9
Customer Relationships [Member]
Business Organization And Significant Accounting Policies [Line Items]
Finite-lived intangible assets	$ 43,600,000
Finite-lived intangible assets amortization period, years	10