Summary of Significant Accounting Policies Revenue from External Customers (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Jan. 28, 2012
Oct. 29, 2011
Jul. 30, 2011
Apr. 30, 2011
Jan. 29, 2011
Oct. 30, 2010
Jul. 31, 2010
May 01, 2010
Jan. 28, 2012
Jan. 29, 2011
Jan. 30, 2010
Revenue from External Customers [Line Items]                      
Revenue, Net $ 673,153 $ 486,784 $ 446,041 $ 467,377 $ 621,498 $ 450,577 $ 407,277 $ 426,462 $ 2,073,355 $ 1,905,814 $ 1,721,066
Other Revenue [Member]
                     
Revenue from External Customers [Line Items]                      
Revenue, Net                 21,543 17,461 12,200
Sales Revenue, Stores [Member]
                     
Revenue from External Customers [Line Items]                      
Revenue, Net                 1,846,323 1,740,818 1,616,642
Sales Revenue, E-commerce [Member]
                     
Revenue from External Customers [Line Items]                      
Revenue, Net                 205,489 147,535 92,224
Sales Revenue, Apparel [Member]
                     
Revenue from External Customers [Line Items]                      
Revenue, Net                 1,864,964 1,715,435 1,564,060
Sales Revenue, Accessories [Member]
                     
Revenue from External Customers [Line Items]                      
Revenue, Net                 $ 186,848 $ 172,918 $ 144,806