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Stock-Based Compensation - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 30, 2017
Dec. 31, 2016
Jan. 02, 2016
Jan. 03, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Maximum Contractual term 1 year 25 days 1 year 7 months 24 days 2 years 5 months 15 days 3 years 3 months 18 days
Shares available for Grant under the Plan 2,500,000      
Shares unissued 14,726      
Proceeds from exercise of stock options $ 3,207 $ 2,518 $ 3,661  
Fair value of share vested 9,300 6,600 7,600  
Tax deductions related to the exercise of stock option and vesting of restricted stock $ 11,600 $ 8,000 $ 9,500  
Stock purchase plan 300,000      
Granted additional shares of common stock, percentage 20.00%      
Share based payment share restriction period 24 months      
Purchase price of common stock 95.00%      
Restricted Stock Awards [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock option award period 4 years      
Unrecognized compensation cost $ 4,000      
Unrecognized compensation cost, weighted average period of recognition 2 years 3 months 18 days      
Restricted Stock Awards [Member] | Board of Directors Chairman [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock option award period 1 year      
2015 Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Maximum Contractual term 10 years      
Shares unissued 1,947,030      
Associate Stock Purchase Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock purchase plan 200,000      
Shares issued under associate stock purchase plan 81,511