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Schedule II - Valuation and Qualifying Accounts (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 29, 2017
Allowance for Doubtful Accounts      
Valuation And Qualifying Accounts Disclosure [Line Items]      
Balance at beginning of period $ 50,702 $ 52,911 $ 40,368
Additions 2,794 5,254 12,530
Deductions (10,661) (6,085) (2,730)
Other and foreign exchange impact (1,002) (1,378) 2,743
Balance at end of period 41,833 50,702 52,911
Valuation Allowance on Deferred Tax Assets      
Valuation And Qualifying Accounts Disclosure [Line Items]      
Balance at beginning of period 6,668 8,882 7,444
Additions 10,817 452 3,456
Deductions (32) (2,633) (2,168)
Other and foreign exchange impact (94) (33) 150
Balance at end of period $ 17,359 $ 6,668 $ 8,882