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NOTES PAYABLE - DIRECT CORPORATE OBLIGATIONS (Tables) | 12 Months Ended
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Dec. 31, 2024
Debt Disclosure [Abstract] |
Schedule of Long-Term Debt Instruments | The following notes payable were direct corporate obligations of the Company as of December 31, 2024 and 2023 (dollars in millions):
| 2024 |  | 2023
6.450% Senior Notes due June 2034 | $ | 700.0 |  |  | $ | — |
5.125% Subordinated Debentures due 2060 | 150.0 |  |  | 150.0 |
5.250% Senior Notes due May 2029 | 500.0 |  |  | 500.0 |
5.250% Senior Notes due May 2025 | 500.0 |  |  | 500.0 |
Unamortized discount on 6.450% Senior Notes due June 2034 | (2.2) |  |  | — |
Unamortized debt issuance costs | (14.3) |  |  | (9.5) |
Direct corporate obligations | $ | 1,833.5 |  |  | $ | 1,140.5 |
Schedule of Maturities of Long-Term Debt | The scheduled repayment of our direct corporate obligations was as follows at December 31, 2024 (dollars in millions):
Year ending December 31, |
2025 | $ | 500.0 |
2026 | — |
2027 | — |
2028 | — |
2029 | 500.0 |
Thereafter | 850.0 |
| $ | 1,850.0 |

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