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v3.25.3

Debt (Schedule of Principal Debt Outstanding) (Details) - USD ($) $ in Millions | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Debt Instrument [Line Items] |  |  |
Principal Outstanding |  | $ 6,404.2 | $ 6,391.9
Unamortized Debt Issuance Costs |  | (34.8) | (37.7)
Unamortized Discount |  | 0.4 | 1.3
Carrying Amount |  | 6,369.0 | 6,352.9
Revolving Secured Line of Credit [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Principal Outstanding | [1] | 148.7 | 0.1
Unamortized Debt Issuance Costs | [1] | 0.0 | 0.0
Unamortized Discount | [1] | 0.0 | 0.0
Carrying Amount | [1] | 148.7 | 0.1
Secured Financings [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Principal Outstanding | [2] | 5,155.5 | 5,391.8
Unamortized Debt Issuance Costs | [2] | (22.0) | (29.0)
Unamortized Discount | [2] | 0.4 | 1.3
Carrying Amount | [2] | 5,133.1 | 5,361.5
Senior Notes [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Principal Outstanding |  | 1,100.0 | 1,000.0
Unamortized Debt Issuance Costs |  | (12.8) | (8.7)
Unamortized Discount |  | 0.0 | 0.0
Carrying Amount |  | 1,087.2 | 991.3
Other Assets [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Unamortized Debt Issuance Costs |  | $ (4.9) | $ (4.4)
[1] | Excludes deferred debt issuance costs of $4.9 million and $4.4 million as of September 30, 2025 and December 31, 2024, respectively, which are included in other assets.
[2] | Warehouse facilities and Term ABS financings.

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