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Summary of Significant Accounting Policies - Schedule of Change in Accumulated Other Comprehensive Income (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 30, 2019
Mar. 31, 2018
Accounting Policies [Abstract]    
Accumulated other comprehensive loss, beginning of period $ (6,199)  
Unrealized losses from foreign currency translation adjustments (577) $ (270)
Accumulated other comprehensive loss, end of period $ (6,776)