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Activity in Deferred Tax Valuation Allowance (Detail) (Valuation Allowance of Deferred Tax Assets, USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 29, 2012
Dec. 31, 2011
Jan. 01, 2011
Valuation Allowance of Deferred Tax Assets
     
Valuation Allowance [Line Items]      
Beginning Balance $ 4,874 $ 2,691 $ 3,647
Charged to Expense (782) (415) (279)
Write-Offs and Other 453 2,598 (677)
Ending Balance $ 4,545 $ 4,874 $ 2,691