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Intangible Assets - Estimated Amortization Expense (Detail) - USD ($)
$ in Thousands
Dec. 30, 2017
Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]    
2017 $ 5,420  
2018 4,958  
2019 3,817  
2020 3,435  
2021 1,768  
Thereafter 7,725  
Total $ 27,123 $ 29,376