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Derivative Instruments - Schedule of Derivative Financial Instruments (Details)
$ in Millions
12 Months Ended
Dec. 31, 2025
USD ($)
derivative
Rate
Dec. 31, 2024
USD ($)
Derivative [Line Items]    
Notional Amount $ 6,597.5 $ 4,854.8
Fair Value - asset (liability) (197.7) (34.4)
Designated as hedging instrument    
Derivative [Line Items]    
Notional Amount 3,624.7 3,129.5
Fair Value - asset (liability) (150.7) (46.2)
Not designated as hedging instrument    
Derivative [Line Items]    
Notional Amount 2,972.8 1,725.3
Fair Value - asset (liability) $ (47.0) 11.8
Interest rate swaps | Designated as hedging instrument    
Derivative [Line Items]    
Number of Instruments | derivative 10  
Notional Amount $ 2,105.0 2,180.0
Weighted Average Strike Rate 3.47%  
Fair Value - asset (liability) $ 5.1 24.3
Cross-currency swaps | Designated as hedging instrument | Fair value hedge    
Derivative [Line Items]    
Number of Instruments | derivative 8  
Notional Amount $ 720.0 320.0
Fair Value - asset (liability) $ (81.0) (42.2)
Cross-currency swaps | Designated as hedging instrument | Net investment hedge    
Derivative [Line Items]    
Number of Instruments | derivative 3  
Notional Amount $ 280.0 280.0
Fair Value - asset (liability) $ (66.1) (37.6)
Currency Swap, USD | Designated as hedging instrument | Fair value hedge    
Derivative [Line Items]    
Weighted Average Strike Rate 5.625%  
Currency Swap, USD | Designated as hedging instrument | Net investment hedge    
Derivative [Line Items]    
Weighted Average Strike Rate 5.625%  
Currency Swap, EUR | Designated as hedging instrument | Fair value hedge    
Derivative [Line Items]    
Weighted Average Strike Rate 4.52%  
Currency Swap, EUR | Designated as hedging instrument | Net investment hedge    
Derivative [Line Items]    
Weighted Average Strike Rate 4.716%  
Foreign currency forwards | Designated as hedging instrument    
Derivative [Line Items]    
Number of Instruments | derivative 54  
Notional Amount $ 519.7 349.5
Fair Value - asset (liability) $ (8.7) 9.3
Weighted average forward exchange rate | Rate 132.00%  
Currency exchange swaps | Not designated as hedging instrument    
Derivative [Line Items]    
Number of Instruments | derivative 5  
Notional Amount $ 2,972.8 1,725.3
Fair Value - asset (liability) $ (47.0) $ 11.8
EUR currency exchange swap | Not designated as hedging instrument    
Derivative [Line Items]    
Weighted average forward exchange rate | Rate 88.00%  
GBP currency exchange swap | Not designated as hedging instrument    
Derivative [Line Items]    
Weighted average forward exchange rate | Rate 132.00%  
Variable to fixed interest rate swap    
Derivative [Line Items]    
Number of derivative instruments entered into | derivative 5  
Number of derivative instruments assumed with merger | derivative 5