Income Taxes Provision for Income Taxes (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Jan. 28, 2012
Jan. 29, 2011
Jan. 30, 2010
Income Taxes [Abstract]      
Current Federal Tax Expense (Benefit) $ 76,984 $ 25,623 $ 0
Current State and Local Tax Expense (Benefit) 18,048 7,746 1,573
Current Foreign Tax Expense (Benefit) 156 0 0
Current Income Tax Expense (Benefit), Total 95,188 33,369 1,573
Deferred Federal Income Tax Expense (Benefit) 714 (16,085) 0
Deferred State and Local Income Tax Expense (Benefit) (949) (2,930) (337)
Deferred Foreign Income Tax Expense (Benefit) (85) 0 0
Deferred Income Tax Expense (Benefit), Total (320) (19,015) (337)
Provision for income taxes $ 94,868 $ 14,354 $ 1,236