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Leases - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 28, 2019
Sep. 29, 2018
Sep. 28, 2019
Sep. 29, 2018
Jan. 01, 2019
Leases [Abstract]          
Lease liability $ 85,308   $ 85,308   $ 100,000
Weighted Average Remaining Lease Term 4 years 8 months 12 days   4 years 8 months 12 days    
Rental expense $ 9,000 $ 8,000 $ 27,000 $ 23,000  
Weighted Average Discount Rate 3.95%   3.95%    
Operating activities in the statement of cash flows     $ 27,000