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Debt (Schedule of General Information of Financing Transaction) (Details) - USD ($) $ in Millions |  | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Mar. 07, 2019 | Sep. 30, 2024 | Dec. 31, 2023 | Dec. 19, 2023 | Dec. 18, 2019
Debt Instrument [Line Items] |  |  |  |  |  |
Senior notes |  |  | $ 990.8 | $ 989.0 |  |
Revolving Secured Line of Credit [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Line of credit maturity date |  |  | Jun. 22, 2027 |  |  |
Financing Amount |  |  | $ 390.0 |  |  |
Revolving Secured Line of Credit [Member] | Prime Rate [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Basis spread on variable rate |  |  | 87.50% |  |  |
Revolving Secured Line of Credit [Member] | SOFR [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Basis spread on variable rate |  |  | 197.50% |  |  |
RTP Facility |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Financing Amount | [1] |  | $ 20.0 |  |  |
RTP Facility | SOFR [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Basis spread on variable rate |  |  | 197.50% |  |  |
Warehouse Facility II [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate |  |  | 0.00% | 0.00% |  |
Debt maturity date | [2],[3] |  | Sep. 20, 2027 |  |  |
Debt facility financing amount | [2] |  | $ 500.0 |  |  |
Warehouse Facility II [Member] | SOFR [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Basis spread on variable rate | [2],[4] |  | 185.00% |  |  |
Warehouse Facility IV [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate |  |  | 0.00% | 0.00% |  |
Debt maturity date | [2],[3] |  | Dec. 29, 2026 |  |  |
Debt facility financing amount | [2] |  | $ 300.0 |  |  |
Warehouse Facility IV [Member] | SOFR [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Basis spread on variable rate | [2],[4] |  | 221.40% |  |  |
Warehouse Facility V [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate |  |  | 0.00% | 0.00% |  |
Debt maturity date | [2],[5] |  | Dec. 29, 2025 |  |  |
Debt facility financing amount | [2] |  | $ 200.0 |  |  |
Warehouse Facility V [Member] | SOFR [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Basis spread on variable rate | [2],[4] |  | 245.00% |  |  |
Warehouse Facility VI [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate |  |  | 0.00% | 0.00% |  |
Debt maturity date | [2],[3] |  | Sep. 30, 2026 |  |  |
Debt facility financing amount | [2] |  | $ 75.0 |  |  |
Warehouse Facility VI [Member] | BSBY [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Basis spread on variable rate | [2] |  | 210.00% |  |  |
Warehouse Facility VIII [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate |  |  | 0.00% | 0.00% |  |
Debt maturity date | [2],[3] |  | Sep. 21, 2026 |  |  |
Debt facility financing amount | [2] |  | $ 200.0 |  |  |
Warehouse Facility VIII [Member] | SOFR [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Basis spread on variable rate | [2],[4] |  | 225.00% |  |  |
Term ABS 2019-2 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate |  |  | 5.43% | 5.15% |  |
Debt maturity date | [2],[6] |  | Sep. 15, 2026 |  |  |
Debt facility financing amount | [2] |  | $ 500.0 |  |  |
Term ABS 2021-1 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate |  |  | 7.30% | 7.56% |  |
Debt maturity date | [2],[6] |  | Feb. 17, 2026 |  |  |
Debt facility financing amount | [2] |  | $ 100.0 |  |  |
Term ABS 2021-1 [Member] | SOFR [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Basis spread on variable rate | [2],[4] |  | 220.00% |  |  |
Term ABS 2021-2 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate |  |  | 0.00% | 1.38% |  |
Term ABS 2021-3 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate |  |  | 1.63% | 1.24% |  |
Debt maturity date | [2],[3] |  | May 15, 2023 |  |  |
Debt facility financing amount | [2] |  | $ 450.0 |  |  |
Term ABS 2021-4 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate |  |  | 1.72% | 1.46% |  |
Debt maturity date | [2],[3] |  | Oct. 16, 2023 |  |  |
Debt facility financing amount | [2] |  | $ 250.1 |  |  |
Term ABS 2022-1 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate |  |  | 5.12% | 5.03% |  |
Debt maturity date | [2],[3] |  | Jun. 17, 2024 |  |  |
Debt facility financing amount | [2] |  | $ 350.0 |  |  |
Term ABS 2022-2 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate |  |  | 7.29% | 7.66% |  |
Debt maturity date | [2],[6] |  | Jun. 15, 2027 |  |  |
Debt facility financing amount | [2] |  | $ 300.0 |  |  |
Term ABS 2022-2 [Member] | SOFR [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Basis spread on variable rate | [2],[4] |  | 246.40% |  |  |
Term ABS 2022-3 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate |  |  | 7.68% | 7.68% |  |
Debt maturity date | [2],[3] |  | Oct. 15, 2024 |  |  |
Debt facility financing amount | [2] |  | $ 389.9 |  |  |
Term ABS 2023-1 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate |  |  | 6.92% | 6.92% |  |
Debt maturity date | [2],[3] |  | Mar. 17, 2025 |  |  |
Debt facility financing amount | [2] |  | $ 400.0 |  |  |
Term ABS 2023-2 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate |  |  | 6.39% | 6.39% |  |
Debt maturity date | [2],[3] |  | May 15, 2025 |  |  |
Debt facility financing amount | [2] |  | $ 400.0 |  |  |
Term ABS 2023-3 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate |  |  | 6.86% | 6.86% |  |
Debt maturity date | [2],[3] |  | Aug. 15, 2025 |  |  |
Debt facility financing amount | [2] |  | $ 400.0 |  |  |
Term ABS 2023-A [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate |  |  | 7.51% | 7.51% |  |
Debt maturity date | [2],[6] |  | Dec. 15, 2025 |  |  |
Debt facility financing amount | [2] |  | $ 200.0 |  |  |
Term ABS 2023-5 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate |  |  | 6.54% | 6.54% |  |
Debt maturity date | [2],[3] |  | Dec. 15, 2025 |  |  |
Debt facility financing amount | [2] |  | $ 294.0 |  |  |
Term ABS 2024-A [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate |  |  | 7.45% |  |  |
Debt maturity date | [2],[6] |  | Feb. 15, 2027 |  |  |
Debt facility financing amount | [2] |  | $ 200.0 |  |  |
Term ABS 2024-1 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate |  |  | 6.01% |  |  |
Debt maturity date | [2],[3] |  | Mar. 16, 2026 |  |  |
Debt facility financing amount | [2] |  | $ 500.0 |  |  |
Term ABS 2024-2 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate |  |  | 6.21% |  |  |
Debt maturity date | [2],[3] |  | Jun. 15, 2026 |  |  |
Debt facility financing amount | [2] |  | $ 550.0 |  |  |
Term ABS 2024-3 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate |  |  | 4.91% |  |  |
Debt maturity date | [2],[3] |  | Sep. 15, 2026 |  |  |
Debt facility financing amount | [2] |  | $ 600.0 |  |  |
2026 Senior Notes [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Senior notes |  |  | $ 400.0 | $ 400.0 |  |
Interest rate |  |  | 6.625% | 6.625% |  |
Debt maturity date |  | Mar. 15, 2026 | Mar. 15, 2026 |  |  |
Debt facility financing amount |  | $ 400.0 | $ 400.0 |  |  |
2028 Senior Notes [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Senior notes |  |  | $ 600.0 | $ 600.0 |  |
Interest rate |  |  | 9.25% | 9.25% | 9.25% | 9.25%
Debt maturity date |  |  | Dec. 15, 2028 |  |  |
Debt facility financing amount |  |  | $ 600.0 |  | $ 600.0 |
Mortgages [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Interest rate |  |  | 0.00% | 6.88% |  |
Debt facility financing amount |  |  |  | $ 9.0 |  |
[1] | Borrowings are subject to repayment on demand
[2] | Financing made available only to a specified subsidiary of the Company.
[3] | Represents the revolving maturity date. The outstanding balance will amortize after the revolving maturity date based on the cash flows of the pledged assets.
[4] | Interest rate cap agreements are in place to limit the exposure to increasing interest rates
[5] | Represents the revolving maturity date. The outstanding balance will amortize after the revolving maturity date and any amounts remaining on December 27, 2027 will be due on that date.
[6] | Represents the revolving maturity date. The Company has the option to redeem and retire the indebtedness after the revolving maturity date. If we do not elect this option, the outstanding balance will amortize based on the cash flows of the pledged assets

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