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Borrowings (Tables) | 6 Months Ended
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Mar. 31, 2025
Debt Disclosure [Abstract] |
Schedule of Long-Term Debt | The Company's debt, net of unamortized debt issuance costs consisted of the following as of March 31, 2025 and September 30, 2024:
in thousands | Maturity Date |  | March 31, 2025 |  | September 30, 2024
5.875% Senior Notes (2027 Notes) | October 2027 |  | $ | 357,255 |  |  | $ | 357,255 |
7.250% Senior Notes (2029 Notes) | October 2029 |  | 350,000 |  |  | 350,000 |
7.500% Senior Notes (2031 Notes) | March 2031 |  | 250,000 |  |  | 250,000 |
Unamortized debt issuance costs |  |  | (7,461) |  |  | (8,310) |
Total Senior Notes, net |  |  | 949,794 |  |  | 948,945 |
Junior Subordinated Notes (net of unamortized accretion of $23,336 and $24,369, respectively) | July 2036 |  | 77,437 |  |  | 76,404 |
Senior Unsecured Revolving Credit Facility | March 2028 |  | 55,000 |  |  | — |
Total debt, net |  |  | $ | 1,082,231 |  |  | $ | 1,025,349 |
Schedule of Debt Instrument Redemption | For additional redemption features, refer to the table below that summarizes the redemption terms of our Senior Notes:
Senior Note Description |  | Issuance Date |  | Maturity Date |  | Redemption Terms
5.875% Senior Notes |  | October 2017 |  | October 2027 |  | Callable at any time prior to October 15, 2022, in whole or in part, at a redemption price equal to 100.000% of the principal amount, plus a customary make-whole premium; on or after October 15, 2022, callable at a redemption price equal to 102.938% of the principal amount; on or after October 15, 2023, callable at a redemption price equal to 101.958% of the principal amount; on or after October 15, 2024, callable at a redemption price equal to 100.979% of the principal amount; on or after October 15, 2025, callable at a redemption price equal to 100.000% of the principal amount, plus, in each case, accrued and unpaid interest.
7.250% Senior Notes |  | September 2019 |  | October 2029 |  | Callable at any time prior to October 15, 2024, in whole or in part, at a redemption price equal to 100.000% of the principal amount, plus a customary make-whole premium; on or after October 15, 2024, callable at a redemption price equal to 103.625% of the principal amount; on or after October 15, 2025, callable at a redemption price equal to 102.417% of the principal amount; on or after October 15, 2026, callable at a redemption price equal to 101.208% of the principal amount; on or after October 15, 2027, callable at a redemption price equal to 100.000% of the principal amount, plus, in each case, accrued and unpaid interest.
7.500% Senior Notes |  | March 2024 |  | March 2031 |  | On or prior to March 15, 2027, we may redeem up to 35% of the aggregate principal amount of the 2031 Notes with the net cash proceeds of certain equity offerings at a redemption price equal to 107.500% of the principal amount, plus accrued and unpaid interest to, but excluding, the redemption date, provided at least 65% of the aggregate principal amount of the 2031 Notes originally issued remains outstanding immediately after such redemption.
|  |  | Callable at any time prior to March 15, 2027, in whole or in part, at a redemption price equal to 100.000% of the principal amount, plus a customary make-whole premium; on or after March 15, 2027, callable at a redemption price equal to 103.750% of the principal amount; on or after March 15, 2028, callable at a redemption price equal to 101.875% of the principal amount; on or after March 15, 2029, callable at a redemption price equal to 100.000% of the principal amount, plus, in each case, accrued and unpaid interest.

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