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Derivative and Hedging Instruments (Schedule of Terms of Interest Rate Cap Agreements) (Details) - USD ($) $ in Millions | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Derivative [Line Items] |  |  |
Interest rate caps, fair value |  | $ 1.4 | $ 2.0
Warehouse Facility II [Member] |  |  |
Derivative [Line Items] |  |  |
Debt facility financing amount | [1] | 400.0 |
Warehouse Facility II [Member] | 6.50% Cap Interest Rate [Member] |  |  |
Derivative [Line Items] |  |  |
Debt facility financing amount |  | 400.0 | 400.0
Notional Amount |  | $ 205.0 | $ 205.0
Cap Interest Rate | [2] | 6.50% | 6.50%
Warehouse Facility IV [Member] |  |  |
Derivative [Line Items] |  |  |
Debt facility financing amount | [1] | $ 300.0 |
Notional Amount |  | 300.0 |
Warehouse Facility IV [Member] | 6.50% Cap Interest Rate [Member] |  |  |
Derivative [Line Items] |  |  |
Debt facility financing amount |  | 300.0 | $ 300.0
Notional Amount |  | $ 25.0 | $ 175.0
Cap Interest Rate | [2] | 6.50% | 6.50%
Warehouse Facility IV [Member] | 7.5% Cap Interest Rate [Member] |  |  |
Derivative [Line Items] |  |  |
Notional Amount |  | $ 275.0 |
Cap Interest Rate |  | 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 |
Notional Amount |  | $ 94.0 |
Cap Interest Rate | [2] | 5.44% |
Warehouse Facility V [Member] | 5.50% Cap Interest Rate [Member] |  |  |
Derivative [Line Items] |  |  |
Debt facility financing amount |  |  | $ 200.0
Notional Amount |  |  | $ 94.0
Cap Interest Rate | [2] |  | 5.50%
Warehouse Facility VIII [Member] |  |  |
Derivative [Line Items] |  |  |
Debt facility financing amount | [1] | $ 200.0 |
Notional Amount |  | 200.0 | $ 200.0
Warehouse Facility VIII [Member] | 5.42% Cap Interest Rate [Member] |  |  |
Derivative [Line Items] |  |  |
Debt facility financing amount |  | 200.0 |
Notional Amount |  | $ 33.3 |
Cap Interest Rate | [2] | 5.42% |
Warehouse Facility VIII [Member] | Additional 5.42% Cap Interest Rate |  |  |
Derivative [Line Items] |  |  |
Notional Amount |  | $ 166.7 |
Cap Interest Rate | [2] | 5.42% |
Warehouse Facility VIII [Member] | 5.50% Cap Interest Rate [Member] |  |  |
Derivative [Line Items] |  |  |
Debt facility financing amount |  |  | 200.0
Notional Amount |  |  | $ 116.7
Cap Interest Rate | [2] |  | 5.50%
Warehouse Facility VIII [Member] | Additional 5.5% Cap Interest Rate [Member] |  |  |
Derivative [Line Items] |  |  |
Notional Amount |  |  | $ 83.3
Cap Interest Rate | [2] |  | 5.50%
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 |
Notional Amount |  | $ 75.0 |
Cap Interest Rate | [2] | 5.46% |
Term ABS 2021-1 [Member] | 5.50% Cap Interest Rate [Member] |  |  |
Derivative [Line Items] |  |  |
Debt facility financing amount |  |  | $ 100.0
Notional Amount |  |  | $ 100.0
Cap Interest Rate | [2] |  | 5.50%
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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