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Long-Term Debt - Summary (Details)
$ in Millions
Sep. 30, 2022
USD ($)
Sep. 30, 2022
AUD ($)
Dec. 31, 2021
USD ($)
Long Term Debt      
Total long-term debt $ 1,637,900,000   $ 1,474,000,000
Less: current portion (76,000,000.0)   (82,000,000.0)
Net long-term debt 1,561,900,000   1,392,000,000
U.S. credit agreement — revolving credit line      
Long Term Debt      
Total long-term debt 0   0
U.K. credit agreement — revolving credit line      
Long Term Debt      
Total long-term debt 0   0
U.K. credit agreement — overdraft line of credit      
Long Term Debt      
Total long-term debt 0   0
3.50% senior subordinated notes due 2025      
Long Term Debt      
Total long-term debt $ 545,800,000   544,700,000
Interest rate (as a percent) 3.50% 3.50%  
3.75% senior subordinated notes due 2029      
Long Term Debt      
Total long-term debt $ 494,900,000   494,300,000
Interest rate (as a percent) 3.75% 3.75%  
Australia capital loan agreement      
Long Term Debt      
Total long-term debt $ 20,800,000 $ 32.5 26,600,000
Australia working capital loan agreement      
Long Term Debt      
Total long-term debt 5,800,000 $ 9.0 0
Mortgage facilities      
Long Term Debt      
Total long-term debt 530,100,000   353,800,000
Other      
Long Term Debt      
Total long-term debt $ 40,500,000   $ 54,600,000