v3.25.2
Goodwill and Other Intangible Assets - Schedule of Goodwill and Other Intangible Assets Rollforward (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Goodwill        
Goodwill, beginning balance $ 439.2 $ 439.2 $ 439.2 $ 168.8
Acquisition of businesses 95.4 0.0 95.4 270.4
Goodwill, ending balance 534.6 439.2 534.6 439.2
Other Intangible Assets        
Other intangible assets (excluding goodwill), beginning balance 275.9 297.4 281.1 201.8
Acquisition of businesses 0.0 0.0 0.0 101.0
Acquisition of intangible assets     0.0 0.3
Amortization (5.1) (5.6) (10.3) (11.3)
Other intangible assets (excluding goodwill), ending balance 270.8 291.8 270.8 291.8
Total Goodwill and Other Intangible Assets        
Total Goodwill and Other Intangible Assets, beginning balance 715.1 736.6 720.3 370.6
Acquisition of businesses 95.4 0.0 95.4 371.4
Acquisition of intangible assets     0.0 0.3
Amortization (5.1) (5.6) (10.3) (11.3)
Total Goodwill and Other Intangible Assets, ending balance $ 805.4 $ 731.0 $ 805.4 $ 731.0