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Debt (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 26, 2020
Jun. 26, 2020
Jun. 28, 2019
Dec. 31, 2019
Debt Disclosure [Abstract]        
Short-term debt $ 151,731 $ 151,731   $ 868
Short-term debt under revolving credit agreement 150,000 150,000 $ 0  
Line of Credit Facility, Remaining Borrowing Capacity $ 179,100 $ 179,100