v3.26.1
Intangible Assets Table (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Intangible Asset, Indefinite-Lived [Line Items]          
Gross Carrying Amount $ 1,137.1   $ 1,137.1   $ 1,119.9
Intangible Asset, Finite-Lived, Accumulated Amortization (788.5)   (788.5)   (744.7)
Net Carrying Amount 348.6   348.6   375.2
Amortization of intangible assets 21.8 $ 20.4 44.7 $ 41.0  
Finite-Lived Intangible Assets, Amortization Expense, Year Five 50.0   50.0    
Minimum [Member]          
Intangible Asset, Indefinite-Lived [Line Items]          
Finite-Lived Intangible Assets, Amortization Expense, Current Fiscal Year 80.0   80.0    
Finite-Lived Intangible Assets, Amortization Expense, Year Two 80.0   80.0    
Finite-Lived Intangible Assets, Amortization Expense, Year Three 80.0   80.0    
Finite-Lived Intangible Assets, Amortization Expense, Year Four 80.0   80.0    
Maximum [Member]          
Intangible Asset, Indefinite-Lived [Line Items]          
Finite-Lived Intangible Assets, Amortization Expense, Current Fiscal Year 90.0   90.0    
Finite-Lived Intangible Assets, Amortization Expense, Year Two 90.0   90.0    
Finite-Lived Intangible Assets, Amortization Expense, Year Three 90.0   90.0    
Finite-Lived Intangible Assets, Amortization Expense, Year Four 90.0   90.0    
Software, Internally Developed and Purchased          
Intangible Asset, Indefinite-Lived [Line Items]          
Gross Carrying Amount 78.4   78.4   61.2
Intangible Asset, Finite-Lived, Accumulated Amortization (60.2)   (60.2)   (55.7)
Net Carrying Amount 18.2   18.2   5.5
Customer Platforms - Intangible Assets [Member]          
Intangible Asset, Indefinite-Lived [Line Items]          
Gross Carrying Amount 856.2   856.2   856.2
Intangible Asset, Finite-Lived, Accumulated Amortization (586.7)   (586.7)   (555.0)
Net Carrying Amount 269.5   269.5   301.2
Customer Relationships - Intangible Assets [Member]          
Intangible Asset, Indefinite-Lived [Line Items]          
Gross Carrying Amount 53.0   53.0   53.0
Intangible Asset, Finite-Lived, Accumulated Amortization (31.6)   (31.6)   (29.9)
Net Carrying Amount 21.4   21.4   23.1
Technology-Based Intangible Assets [Member]          
Intangible Asset, Indefinite-Lived [Line Items]          
Gross Carrying Amount 149.5   149.5   149.5
Intangible Asset, Finite-Lived, Accumulated Amortization (110.0)   (110.0)   (104.1)
Net Carrying Amount $ 39.5   $ 39.5   $ 45.4