v3.8.0.1
Capital Stock - Additional Information (Detail) - USD ($)
9 Months Ended
Sep. 24, 2017
Sep. 25, 2016
Sep. 08, 2016
Sep. 08, 2015
Equity [Abstract]        
Stock repurchase program, authorized amount     $ 30,000,000 $ 35,000,000
Common stock shares repurchased 745,496      
Common stock repurchased value $ 8,853,000 $ 20,447,000    
Remaining dollar value of authorization under the share repurchase program $ 18,800,000