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Derivative and Hedging Instruments (Schedule of Terms of Interest Rate Cap Agreements) (Details) - USD ($) $ in Millions | Mar. 31, 2024 | Dec. 31, 2023
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Derivative [Line Items] |  |  |
Interest rate caps, fair value |  | $ 0.1 |
Warehouse Facility II [Member] |  |  |
Derivative [Line Items] |  |  |
Debt facility financing amount | [1] | 400.0 |
Warehouse Facility IV [Member] |  |  |
Derivative [Line Items] |  |  |
Debt facility financing amount | [1] | 300.0 |
Warehouse Facility IV [Member] | 7.5% Cap Interest Rate [Member] |  |  |
Derivative [Line Items] |  |  |
Debt facility financing amount |  | 300.0 | $ 300.0
Notional Amount |  | $ 300.0 | $ 300.0
Cap Interest Rate | [2] | 7.50% | 7.50%
Warehouse Facility V [Member] |  |  |
Derivative [Line Items] |  |  |
Debt facility financing amount | [1] | $ 200.0 |
Warehouse Facility V [Member] | 5.44% Cap Interest Rate [Member] |  |  |
Derivative [Line Items] |  |  |
Debt facility financing amount |  | 200.0 | $ 200.0
Notional Amount |  | $ 83.0 | $ 94.0
Cap Interest Rate | [2] | 5.44% | 5.44%
Warehouse Facility VIII [Member] |  |  |
Derivative [Line Items] |  |  |
Debt facility financing amount | [1] | $ 200.0 |
Warehouse Facility VIII [Member] | 5.42% Cap Interest Rate [Member] |  |  |
Derivative [Line Items] |  |  |
Debt facility financing amount |  | 200.0 | $ 200.0
Notional Amount |  | $ 200.0 | $ 200.0
Cap Interest Rate | [2] | 5.42% | 5.42%
Term ABS 2021-1 [Member] |  |  |
Derivative [Line Items] |  |  |
Debt facility financing amount | [1] | $ 100.0 |
Term ABS 2021-1 [Member] | 5.46% Cap Interest Rate [Member] |  |  |
Derivative [Line Items] |  |  |
Debt facility financing amount |  | 100.0 | $ 100.0
Notional Amount |  | $ 18.8 | $ 37.5
Cap Interest Rate | [2] | 5.46% | 5.46%
Term ABS 2022-2 [Member] |  |  |
Derivative [Line Items] |  |  |
Debt facility financing amount | [1] | $ 200.0 |
Term ABS 2022-2 [Member] | 6.50% Cap Interest Rate [Member] |  |  |
Derivative [Line Items] |  |  |
Debt facility financing amount |  | 200.0 | $ 200.0
Notional Amount |  | $ 200.0 | $ 200.0
Cap Interest Rate | [2] | 6.50% | 6.50%
[1] | Financing made available only to a specified subsidiary of the Company.
[2] | Rate excludes the spread over the corresponding benchmark rate.

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