v3.25.1
Goodwill and Other Intangible Assets - Schedule of Goodwill and Other Intangible Assets Rollforward (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Goodwill    
Goodwill, beginning balance $ 439.2 $ 168.8
Acquisition of businesses 0.0 270.4
Goodwill, ending balance 439.2 439.2
Other Intangible Assets    
Other intangible assets (excluding goodwill), beginning balance 281.1 201.8
Acquisition of businesses 0.0 101.0
Acquisition of intangible assets 0.0 0.3
Amortization (5.2) (5.7)
Other intangible assets (excluding goodwill), ending balance 275.9 297.4
Total Goodwill and Other Intangible Assets    
Total Goodwill and Other Intangible Assets, beginning balance 720.3 370.6
Acquisition of businesses 0.0 371.4
Acquisition of intangible assets 0.0 0.3
Amortization (5.2) (5.7)
Total Goodwill and Other Intangible Assets, ending balance $ 715.1 $ 736.6