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v3.22.2.2

Debt (Tables) | 12 Months Ended
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Sep. 30, 2022
Debt Disclosure [Abstract] |
Schedule of Long-term Debt Instruments | The following tables present our debt instruments outstanding, contractual maturities and interest expense:
| September 30, 2022 |  | September 30, 2021
(in thousands) | Gross Amount |  | Debt Issuance Costs |  | Carrying Amount |  | Gross Amount |  | Debt Discount and Issuance Costs |  | Carrying Amount
2024 Convertible Notes | $ | 143,750 |  |  | $ | (1,175) |  |  | $ | 142,575 |  |  | $ | 143,750 |  |  | $ | (20,207) |  |  | $ | 123,543 |
2025 Convertible Notes | 172,500 |  |  | (2,172) |  |  | 170,328 |  |  | 172,500 |  |  | (31,857) |  |  | 140,643 |
Total long-term debt | $ | 316,250 |  |  | $ | (3,347) |  |  | $ | 312,903 |  |  | $ | 316,250 |  |  | $ | (52,064) |  |  | $ | 264,186 |
Schedule of Maturities of Debt |
| Schedule of Contractual Maturities
(in thousands) | Total |  | Less Than 1 Year |  | 1 - 3 Years |  | 3 - 5 Years
2024 Convertible Notes | $ | 143,750 |  |  | $ | — |  |  | $ | 143,750 |  |  | $ | — |
2025 Convertible Notes | 172,500 |  |  | — |  |  | 172,500 |  |  | — |
Total | $ | 316,250 |  |  | $ | — |  |  | $ | 316,250 |  |  | $ | — |
Schedule of Interest Expense |
| Fiscal Year Ended September 30,
(in thousands) | 2022 |  | 2021 |  | 2020
2024 Convertible Notes: |  |  |  |  |
Contractual interest expense | $ | 4,133 |  |  | $ | 4,133 |  |  | $ | 4,133 |
Amortization of deferred financing costs | 635 |  |  | 446 |  |  | 446 |
Amortization of debt discount | — |  |  | 5,903 |  |  | 5,437 |
Total interest expense | $ | 4,768 |  |  | $ | 10,482 |  |  | $ | 10,016 |
2025 Convertible Notes: |  |  |  |  |
Contractual interest expense | $ | 4,097 |  |  | $ | 4,097 |  |  | $ | 4,097 |
Amortization of deferred financing costs | 797 |  |  | 560 |  |  | 561 |
Amortization of debt discount | — |  |  | 6,919 |  |  | 6,393 |
Total interest expense | $ | 4,894 |  |  | $ | 11,576 |  |  | $ | 11,051 |

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