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Long-Term Debt - U.K. Credit Agreement (Details)
£ in Millions, $ in Millions
9 Months Ended
Sep. 30, 2024
USD ($)
Sep. 30, 2024
GBP (£)
Dec. 31, 2023
USD ($)
Debt Instrument [Line Items]      
Outstanding debt | $ $ 1,878.0   $ 1,629.2
U.K. credit agreement — revolving credit line      
Debt Instrument [Line Items]      
Maximum credit available   £ 200.0  
Additional facility capacity under accordion feature   100.0  
Outstanding debt $ 81.6 £ 61.0 $ 0.0
U.K. credit agreement — revolving credit line | Minimum      
Debt Instrument [Line Items]      
Line of credit basis spread on variable rate, increase (decrease) (as a percent) 1.10%    
U.K. credit agreement — revolving credit line | Maximum      
Debt Instrument [Line Items]      
Line of credit basis spread on variable rate, increase (decrease) (as a percent) 2.10%