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Summary of Significant Accounting Policies - Schedule of Change in Accumulated Other Comprehensive Income (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 28, 2019
Sep. 29, 2018
Sep. 28, 2019
Sep. 29, 2018
Accounting Policies [Abstract]        
Accumulated other comprehensive loss, beginning of period     $ (6,199)  
Unrealized gains (losses) from foreign currency translation adjustments $ (1,310) $ 179 (1,595) $ (2,877)
Accumulated other comprehensive loss, end of period $ (7,794)   $ (7,794)