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Guarantees - Narrative (Details) - USD ($)
$ in Millions
Sep. 25, 2021
Dec. 26, 2020
Guarantor Obligations [Line Items]    
Outstanding standby letters of credit $ 24.3 $ 28.9
Bond secure amount 4.0 2.8
Debt instrument, collateral amount 164.5 169.5
Credit Agreement    
Guarantor Obligations [Line Items]    
Letters of credit outstanding 12.1  
Surety Bond    
Guarantor Obligations [Line Items]    
Bond secure amount 5.5 5.5
Letter of Credit    
Guarantor Obligations [Line Items]    
Customer performance guarantee 16.8 19.8
Value added tax license 0.7 0.3
Property leases 4.9 4.0
Pension plans 1.8 4.4
Credit cards   0.3
Suppliers 0.1  
Other liabilities   0.1
Letter of Credit | Banker's Guarantees or Performance Bonds    
Guarantor Obligations [Line Items]    
Maximum borrowing capacity $ 50.0 50.0
Line of credit, outstanding   $ 11.5