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Stock-Based Compensation - Summary of Stock Option Activity (Detail) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 30, 2017
Dec. 31, 2016
Jan. 02, 2016
Jan. 03, 2015
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]        
Shares Under Options, Outstanding, Beginning balance 200,517 308,793 494,483  
Shares Under Options, Exercisable 200,517 308,793 494,483  
Shares Under Options, Exercised (152,589) (107,338) (185,627)  
Shares Under Options, Cancelled/Forfeited   (938) (63)  
Shares Under Options, Outstanding, Ending balance 47,928 200,517 308,793 494,483
Shares Under Options, Exercisable 47,928 200,517 308,793 494,483
Weighted Average Exercise Price, Options outstanding, Beginning balance $ 19.94 $ 21.15 $ 20.61  
Weighted Average Exercise Price, Exercisable 19.94 21.15 20.61  
Weighted Average Exercise Price, Exercised 21.02 23.46 19.72  
Weighted Average Exercise Price, Cancelled/Forfeited   14.36 11.50  
Weighted Average Exercise Price, Options outstanding, Ending balance 16.52 19.94 21.15 $ 20.61
Weighted Average Exercise Price, Exercisable $ 16.52 $ 19.94 $ 21.15 $ 20.61
Weighted Average Remaining Contractual Life Years, Options outstanding 1 year 25 days 1 year 7 months 24 days 2 years 5 months 15 days 3 years 3 months 18 days
Weighted Average Remaining Contractual Life Years, Exercisable 1 year 25 days 1 year 7 months 24 days 2 years 5 months 15 days 3 years 3 months 18 days
Aggregate Intrinsic Value, Options outstanding, Beginning balance $ 3,929 $ 773 $ 2,772  
Aggregate Intrinsic Value, Exercisable 3,929 773 2,772  
Aggregate Intrinsic Value, Exercised 1,832 1,043 1,543  
Aggregate Intrinsic Value, Options outstanding, Ending balance 487 3,929 773 $ 2,772
Aggregate Intrinsic Value, Exercisable $ 487 $ 3,929 $ 773 $ 2,772