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Income Taxes - Schedule of Reconciliation of Valuation Allowance (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Feb. 02, 2013
Jan. 28, 2012
Jan. 29, 2011
Valuation Allowance [Line Items]      
Balance at beginning of fiscal year $ 57,484 $ 68,318 $ 65,087
Charged to expense (57,185) 299 (236)
Net changes in deferred tax assets and liabilities (6) (11,133) 3,467
Balance at end of fiscal year $ 293 $ 57,484 $ 68,318