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Goodwill and Other Intangible Assets - Intangible Assets (Details) - USD ($)
$ in Millions
Sep. 30, 2025
Dec. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]    
Gross Carrying Amount $ 95.9 $ 95.9
Accumulated Amortization (39.7) (34.2)
Definite-lived intangible assets, Net Carrying Amount 56.2 61.7
Indefinite-lived intangible assets, Net Carrying Amount 2,461.6 2,347.3
Total intangible assets $ 2,517.8 $ 2,409.0