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v3.23.1

Long-Term Debt (Tables) | 6 Months Ended
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Mar. 31, 2023
Debt Disclosure [Abstract] |
Schedule of Long-Term Debt | Long-term debt consisted of the following (in thousands):
|  | March 31, 2023 |  |  | September 30, 2022 |
3.00% Convertible Senior Notes due 2025, net of unamortized discount of $0 and $11,264, respectively, and deferred issuance costs of $2,546 and $2,832, respectively. Effective interest rate 3.70% and 6.29%, respectively. |  | $ | 172,454 |  |  | $ | 160,904 |
Senior Credit Facilities, net of unamortized discount of $1,390 and $1,310, respectively, and deferred issuance costs of $127 and $158, respectively. Effective interest rate 8.41% and 5.37%, respectively. |  |  | 104,733 |  |  |  | 109,470 |
Total debt |  | $ | 277,187 |  |  | $ | 270,374 |
Less: current portion |  |  | (12,500 | ) |  |  | (10,938 | )
Total long-term debt |  | $ | 264,687 |  |  | $ | 259,436 |
Summary of Maturities of Borrowing Obligations | The following table summarizes the maturities of our borrowing obligations as of March 31, 2023 (in thousands):
Fiscal Year |  | Convertible Senior Notes |  |  | Senior Facilities |  |  | Total |
2023 |  | $ | — |  |  | $ | 6,250 |  |  | $ | 6,250 |
2024 |  |  | — |  |  |  | 12,500 |  |  |  | 12,500 |
2025 |  |  | 175,000 |  |  |  | 87,500 |  |  |  | 262,500 |
Total before unamortized discount and issuance costs and current portion |  | $ | 175,000 |  |  | $ | 106,250 |  |  | $ | 281,250 |
Less: unamortized discount and issuance costs |  |  | (2,546 | ) |  |  | (1,517 | ) |  |  | (4,063 | )
Less: current portion of long-term debt |  |  | — |  |  |  | (12,500 | ) |  |  | (12,500 | )
Total long-term debt |  | $ | 172,454 |  |  | $ | 92,233 |  |  | $ | 264,687 |
Schedule of Interest Expense Related to Notes | The interest expense recognized related to the Notes for the three and six months ended March 31, 2023 and 2022 was as follows (dollars in thousands):
|  | Three Months Ended March 31, |  |  | Six Months Ended March 31, |
|  | 2023 |  |  | 2022 |  |  | 2023 |  |  | 2022 |
Contractual interest expense |  | $ | 1,294 |  |  | $ | 1,294 |  |  | $ | 2,616 |  |  | $ | 2,616 |
Amortization of debt discount |  |  | - |  |  |  | 919 |  |  |  | - |  |  |  | 1,843 |
Amortization of issuance costs |  |  | 276 |  |  |  | 231 |  |  |  | 556 |  |  |  | 463 |
Total interest expense related to the Notes |  | $ | 1,570 |  |  | $ | 2,444 |  |  | $ | 3,172 |  |  | $ | 4,922 |

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