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Goodwill and Other Intangible Assets - Intangible Assets (Details) - USD ($)
$ in Millions
Jun. 30, 2024
Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]    
Gross Carrying Amount $ 96.0 $ 97.5
Accumulated Amortization (28.9) (26.4)
Definite-lived intangible assets, Net Carrying Amount 67.1 71.1
Indefinite-lived intangible assets, Net Carrying Amount 2,347.3 2,347.3
Total intangible assets $ 2,414.4 $ 2,418.4