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Income Taxes - Additional Information (Detail) (USD $)
 12 Months Ended
Dec. 29, 2013
Dec. 30, 2012
Store
Jan. 01, 2012
Jan. 02, 2011
Schedule Of Income Taxes [Line Items]        
Likelihood of benefit being realized upon settlement Greater than 50 percent      
Unrecognized tax benefits, interest on income taxes expense $ 100,000 $ 100,000 $ 100,000  
Unrecognized tax benefits 3,573,000 3,472,000 3,487,000 4,405,000
Unrecognized tax benefits that would impact effective tax rate 2,100,000 2,100,000 2,200,000  
Unrecognized tax benefits, interest on income taxes accrued 600,000 500,000 400,000  
Tax benefit to reflect increased tax basis in certain assets due to issuance of final tax regulations   700,000    
Number of remaining company-owned stores sold   6    
Deferred tax asset, valuation allowance   900,000    
Release Of Accrual
        
Schedule Of Income Taxes [Line Items]        
Unrecognized tax benefits, interest on income taxes expense     $ 200,000