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Debt - Revolving credit facility Narratives (Details) - Secured multi-currency facility - USD ($)
Mar. 28, 2020
Dec. 28, 2019
Revolving credit facility    
Line of Credit Facility    
Maximum borrowing capacity of credit facility $ 185,000,000.0  
Line of credit carrying value 0 $ 0
Letter of credit sub-facility    
Line of Credit Facility    
Maximum borrowing capacity of credit facility 20,000,000.0  
Line of credit carrying value $ 0 $ 0