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Rollforward of Liabilities Recognized in Consolidated Balance Sheet (Detail) (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Jul. 28, 2012
Restructuring Cost and Reserve [Line Items]  
Add: Costs incurred, excluding non-cash charges $ 3,439
Less: Cash payments (2,635)
Accrued liability Ending balance $ 804 [1]
[1] Accrued liability at July 28, 2012 relates to severance and employee related charges recorded as a current liability within accrued compensation and payroll taxes.