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Goodwill and Intangible Assets - Intangible Assets Other Than Goodwill (Details) - USD ($)
$ in Millions
Sep. 30, 2024
Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount $ 1,962.4 $ 1,959.8
Accumulated amortization (1,219.0) (1,100.8)
Net carrying amount 743.4 859.0
Intangible Assets, Net (Excluding Goodwill) [Abstract]    
Gross carrying amount 2,102.4 2,119.8
Accumulated amortization (1,219.0) (1,100.8)
Net carrying amount 883.4 1,019.0
Trade name (indefinite-lived)    
Indefinite-lived Intangible Assets [Line Items]    
Trade name (indefinite-lived) 140.0 160.0
Customer relationships    
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount 1,935.0 1,932.0
Accumulated amortization (1,192.0) (1,073.9)
Net carrying amount 743.0 858.1
Intangible Assets, Net (Excluding Goodwill) [Abstract]    
Accumulated amortization (1,192.0) (1,073.9)
Other    
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount 27.4 27.8
Accumulated amortization (27.0) (26.9)
Net carrying amount 0.4 0.9
Intangible Assets, Net (Excluding Goodwill) [Abstract]    
Accumulated amortization $ (27.0) $ (26.9)