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Financing Arrangements, Interest Rates and Maturities (Details) - USD ($)
$ in Millions
Jun. 30, 2022
Dec. 31, 2021
Jul. 31, 2018
Debt Instrument [Line Items]      
Effective interest rate 5.18%    
Finance lease obligations $ 11.9 $ 13.5  
Debt issuance costs (6.2) (7.1)  
Total debt, finance lease obligations, and notes payable 2,016.8 1,800.7  
Less: current maturities 553.3 553.3  
Total long-term debt, finance lease obligations, and notes payable $ 1,463.5 1,247.4  
Term Loan, 364 Day      
Debt Instrument [Line Items]      
Average interest rate as of June 30, 2022 2.06%    
Line of Credit, Current $ 500.0 500.0  
Revolving Credit Facility      
Debt Instrument [Line Items]      
Average interest rate as of June 30, 2022 2.79%    
Senior Notes | Senior Unsecured Notes 4.23% Due July 2028      
Debt Instrument [Line Items]      
Stated interest rate 4.23%    
Long-term debt   350.0 $ 350.0
Notes payable and other      
Debt Instrument [Line Items]      
Stated interest rate 4.25%    
Long-term debt $ 67.1 68.3  
Revolving Credit Facility      
Debt Instrument [Line Items]      
Revolving loan facility $ 242.0 0.0  
Term loan      
Debt Instrument [Line Items]      
Average interest rate as of June 30, 2022 2.31%    
Revolving loan facility $ 852.0 $ 876.0