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Long-Term Debt - Summary of Maturities of Borrowing Obligations (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Oct. 01, 2022 | Sep. 30, 2022
--- | --- | --- | ---
Debt Instrument [Line Items] |  |  |
2023 | $ 6,250 |  |
2024 | 12,500 |  |
2025 | 262,500 |  |
Total before unamortized discount and issuance costs and current portion | 281,250 |  |
Less: unamortized discount and issuance costs | (4,063) |  |
Less: current portion of long-term debt | (12,500) |  | $ (10,938)
Total long-term debt | 264,687 | $ 270,430 | $ 259,436
Senior Facilities |  |  |
Debt Instrument [Line Items] |  |  |
2023 | 6,250 |  |
2024 | 12,500 |  |
2025 | 87,500 |  |
Total before unamortized discount and issuance costs and current portion | 106,250 |  |
Less: unamortized discount and issuance costs | (1,517) |  |
Less: current portion of long-term debt | (12,500) |  |
Total long-term debt | 92,233 |  |
Convertible Senior Notes |  |  |
Debt Instrument [Line Items] |  |  |
2025 | 175,000 |  |
Total before unamortized discount and issuance costs and current portion | 175,000 |  |
Less: unamortized discount and issuance costs | (2,546) |  |
Total long-term debt | $ 172,454 |  |

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