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Schedule of Restructuring and Acquisition Related Costs (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 27, 2019
Sep. 28, 2018
Sep. 27, 2019
Sep. 28, 2018
Restructuring Cost And Reserve [Line Items]        
Total restructuring charges $ 1,466 $ 137 $ 4,836 $ 1,125
Acquisition and related charges 4,080 2,204 7,077 3,680
Total restructuring and acquisition related costs 5,546 2,341 11,913 4,805
2019 Restructuring        
Restructuring Cost And Reserve [Line Items]        
Total restructuring charges 1,115   4,047  
2018 Restructuring        
Restructuring Cost And Reserve [Line Items]        
Total restructuring charges $ 351 $ 137 $ 789 $ 1,125