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Significant Components of Deferred Tax Assets and Liabilities (Detail) (USD $)
In Thousands, unless otherwise specified
Jan. 31, 2014
Jan. 31, 2013
Components Of Deferred Tax Assets And Liabilities [Line Items]    
Prepaid expense $ (2,813) $ (2,794)
Depreciation (48,362) (56,434)
Gross deferred tax liabilities (51,175) (59,228)
Deferred rent 66,579 64,539
Inventories 5,624 3,357
Accounts receivable 3,063 2,093
Net operating loss carryforwards 2,601 4,356
Tax uncertainties 3,372 5,710
Accrued salaries and benefits 28,045 20,390
Other temporary differences 8,779 1,986
Gross deferred tax assets, before valuation allowances 118,063 102,431
Valuation allowances (54) (2,083)
Net deferred tax assets $ 66,834 $ 41,120