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Summary of Significant Accounting Policies (Narrative) (Details) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 25, 2020
Dec. 27, 2019
Other Details      
Write-downs of long-lived assets $ 0    
Other Asset Impairment Charges   $ 35,000,000  
Amortization of intangible assets 17,900,000 16,700,000 $ 15,500,000
Cash surrender value of life insurance change 3,300,000 2,200,000 $ 3,400,000
Self insured reserves 9,300,000 8,000,000  
Derivative, Notional Amount $ 54,000,000    
Minimum      
Other Details      
Capitalized software estimated useful life 2 years    
Minimum | Buildings and improvements      
Other Details      
Property, plant and equipment, useful life 10 years    
Minimum | Leasehold improvements      
Other Details      
Property, plant and equipment, useful life 5 years    
Minimum | Manufacturing equipment      
Other Details      
Property, plant and equipment, useful life 5 years    
Minimum | Office, warehouse and automotive equipment      
Other Details      
Property, plant and equipment, useful life 3 years    
Maximum      
Other Details      
Capitalized software estimated useful life 5 years    
Maximum | Buildings and improvements      
Other Details      
Property, plant and equipment, useful life 30 years    
Maximum | Leasehold improvements      
Other Details      
Property, plant and equipment, useful life 10 years    
Maximum | Manufacturing equipment      
Other Details      
Property, plant and equipment, useful life 10 years    
Maximum | Office, warehouse and automotive equipment      
Other Details      
Property, plant and equipment, useful life 10 years    
Trade Accounts Receivable      
Other Details      
Accounts receivable $ 315,000,000 302,000,000  
Other Receivables      
Other Details      
Accounts receivable $ 10,000,000 $ 13,000,000