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Income Taxes (Components Of Deferred Tax Assets And Liabilities) (Details) (USD $)
In Thousands, unless otherwise specified
Jan. 31, 2012
Jan. 31, 2011
Income Taxes [Abstract]    
Prepaid expenses $ (1,402) $ (1,551)
Depreciation (4,761) (15,922)
Gross deferred tax liabilities (6,163) (17,473)
Deferred rent 37,024 43,005
Inventories 3,093 5,434
Accounts receivable 1,166 747
Net operating loss carryforwards 5,684 5,123
Tax uncertainties 7,651 4,433
Accrued salaries and benefits 13,786 13,496
Other temporary differences 4,437  
Gross deferred tax assets, before valuation allowances 72,841 72,238
Valuation allowances (2,754) (2,622)
Net deferred tax assets $ 63,924 $ 52,143