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v3.23.3

NOTES PAYABLE - DIRECT CORPORATE OBLIGATIONS - SCHEDULE OF LONG-TERM DEBT INSTRUMENTS (Details) - USD ($) $ in Millions | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Debt Instrument [Line Items] |  |
Notes payable – direct corporate obligations | $ 1,140.1 | $ 1,138.8
Unamortized debt issue costs | $ (9.9) | (11.2)
Senior Notes | 5.250% Senior Notes due May 2025 |  |
Debt Instrument [Line Items] |  |
Interest rate | 5.25% |
Notes payable – direct corporate obligations | $ 500.0 | 500.0
Senior Notes | 5.250% Senior Notes due May 2029 |  |
Debt Instrument [Line Items] |  |
Interest rate | 5.25% |
Notes payable – direct corporate obligations | $ 500.0 | 500.0
Subordinated Debt | 5.125% Subordinated Debentures due November 2060 |  |
Debt Instrument [Line Items] |  |
Interest rate | 5.125% |
Notes payable – direct corporate obligations | $ 150.0 | 150.0
Revolving Credit Agreement | Revolving Credit Facility |  |
Debt Instrument [Line Items] |  |
Notes payable – direct corporate obligations | $ 0.0 | $ 0.0

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