v3.26.3
Goodwill and Other Intangible Assets - Additional Information (Details) - USD ($)
$ in Millions
Sep. 01, 2026
Sep. 30, 2026
Dec. 31, 2025
Dec. 31, 2024
Goodwill and Other Intangible Assets        
Goodwill   $ 1,860.6 $ 1,600.5 $ 1,549.7
Beam Benefits        
Goodwill and Other Intangible Assets        
Purchase of acquired business, net of cash acquired $ 403.6      
Goodwill 325.4      
Customer relationships | Beam Benefits        
Goodwill and Other Intangible Assets        
Finite lived intangible assets acquired $ 30.0      
Finite lived intangible assets useful life 10 years      
Technology | Beam Benefits        
Goodwill and Other Intangible Assets        
Finite lived intangible assets acquired $ 20.0      
Finite lived intangible assets useful life 4 years