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Stock-Based Compensation - Additional Information (Detail)
12 Months Ended
Dec. 30, 2015
USD ($)
Director
shares
Dec. 31, 2014
USD ($)
Director
$ / shares
shares
Dec. 25, 2013
USD ($)
$ / shares
shares
Dec. 26, 2012
$ / shares
shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Common stock, options outstanding 2,151,214 3,070,176 3,338,096  
Common stock, options vested 1,728,964      
Options to purchase common stock granted 0 229,048    
Stock options exercise price | $ / shares   $ 15.55    
Options expiration period 10 years      
Aggregate intrinsic value of options outstanding | $ $ 13,700,000      
Aggregate intrinsic value of options exercisable | $ 11,500,000      
Intrinsic value of options exercised | $ 14,900,000 $ 11,500,000 $ 0  
Stock-based compensation expense | $ 539,000 $ 1,093,000 $ 822,000  
Unrecognized compensation expense | $ $ 900,000      
Unrecognized compensation expense, recognition period 2 years 1 month 6 days      
Exercise price of $5.84 [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Options to purchase common stock granted     535,238 2,126,677
Stock options exercise price | $ / shares     $ 5.84 $ 5.84
Exercise price equal to the fair value of the common stock on the date of grant [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Options to purchase common stock granted   229,048 267,619  
Premium Options [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Common stock, options outstanding 1,739,367      
Stock Options [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Common stock, options outstanding 411,847      
Options granted, percent   50.00% 50.00% 50.00%
Options granted, description Of the total options granted in fiscal 2014, 2013 and 2012, 50% are performance based and vest according to whether certain financial targets are met, and the remaining 50% vest over four or three years.      
Option vesting period   4 years 4 years 3 years
Authorized number of common stock for issuance, shares 4,402,240      
Number of share available for grant 882,594      
Weighted average grant date fair Value | $ / shares   $ 6.23 $ 1.40  
Expected volatility, Minimum   32.40%    
Expected volatility, Maximum   41.00%    
Expected life   5 years 9 months 6 years 3 months  
Risk-free interest rates, Minimum   1.70% 1.15%  
Risk-free interest rates, Maximum   1.72% 1.99%  
Expected dividends   0.00% 0.00%  
Expected volatility     40.60%  
Restricted Stock [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Stock-based compensation expense | $ $ 98,000 $ 32,000    
Unrecognized compensation expense | $ $ 250,000      
Unrecognized compensation expense, recognition period 2 years 1 month 6 days      
Number of directors granted shares | Director 3 2    
Restricted Stock [Member] | Directors [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Option vesting period 3 years      
Restricted shares granted 2,636 3,333    
Value of restricted grants | $ $ 50,000 $ 50,000