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Derivative Instruments - Schedule of Derivative Financial Instruments (Details) $ in Millions | Mar. 31, 2025 USD ($) derivative Rate | Dec. 31, 2024 USD ($)
--- | --- | ---
Derivative [Line Items] |  |
Notional Amount | $ 5,629.4 | $ 4,854.8
Fair Value - asset (liability) | (82.1) | (34.4)
Designated as hedging instrument |  |
Derivative [Line Items] |  |
Notional Amount | 3,466.8 | 3,129.5
Fair Value - asset (liability) | (78.3) | (46.2)
Not designated as hedging instrument |  |
Derivative [Line Items] |  |
Notional Amount | 2,162.6 | 1,725.3
Fair Value - asset (liability) | $ (3.8) | 11.8
Interest rate swaps | Designated as hedging instrument |  |
Derivative [Line Items] |  |
Number of Instruments | derivative | 10 |
Notional Amount | $ 2,180.0 | 2,180.0
Weighted Average Strike Rate | 3.40% |
Fair Value - asset (liability) | $ 15.0 | 24.3
Interest rate swaptions | Designated as hedging instrument |  |
Derivative [Line Items] |  |
Number of Instruments | derivative | 3 |
Notional Amount | $ 250.0 | 0.0
Fair Value - asset (liability) | $ (0.3) | 0.0
Interest Rate Swaption, Purchased | Designated as hedging instrument |  |
Derivative [Line Items] |  |
Fixed strike rate | 3.962% |
Interest Rate Swaption, Sold | Designated as hedging instrument |  |
Derivative [Line Items] |  |
Fixed strike rate | 3.662% |
Cross-currency swaps | Designated as hedging instrument | Fair value hedge |  |
Derivative [Line Items] |  |
Number of Instruments | derivative | 3 |
Notional Amount | $ 320.0 | 320.0
Fair Value - asset (liability) | $ (47.1) | (42.2)
Cross-currency swaps | Designated as hedging instrument | Net Investment Hedging |  |
Derivative [Line Items] |  |
Number of Instruments | derivative | 3 |
Notional Amount | $ 280.0 | 280.0
Fair Value - asset (liability) | $ (42.0) | (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 Hedging |  |
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 | 4.681% |
Currency Swap, EUR | Designated as hedging instrument | Net Investment Hedging |  |
Derivative [Line Items] |  |
Weighted Average Strike Rate | 4.716% |
Foreign currency forwards | Designated as hedging instrument |  |
Derivative [Line Items] |  |
Number of Instruments | derivative | 34 |
Notional Amount | $ 436.8 | 349.5
Fair Value - asset (liability) | $ (3.9) | 9.3
Weighted average forward exchange rate | Rate | 128.00% |
Currency exchange swaps | Not designated as hedging instrument |  |
Derivative [Line Items] |  |
Number of Instruments | derivative | 5 |
Notional Amount | $ 2,162.6 | 1,725.3
Fair Value - asset (liability) | $ (3.8) | $ 11.8
EUR currency exchange swap | Not designated as hedging instrument |  |
Derivative [Line Items] |  |
Weighted average forward exchange rate | Rate | 84.00% |
GBP currency exchange swap | Not designated as hedging instrument |  |
Derivative [Line Items] |  |
Weighted average forward exchange rate | Rate | 129.00% |

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