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Leases - Summary of Undiscounted Future Minimum Lease Payments Under Non-cancelable Leases (Details) - USD ($) $ in Thousands | Jun. 30, 2021 | Sep. 30, 2020
--- | --- | ---
Operating Leases |  |
2021 (excluding nine months ended June 30, 2021) | $ 1,830 |
2022 | 6,250 |
2023 | 4,145 |
2024 | 3,800 |
2025 | 2,351 |
Thereafter | 3,125 |
Total future minimum lease payments | 21,501 |
Less effects of discounting | (2,847) |
Total lease liabilities | 18,654 |
Short-term lease liabilities | 5,497 | $ 5,700
Long-term lease liabilities | 13,157 | $ 17,821
Financing Leases |  |
2021 (excluding nine months ended June 30, 2021) | 118 |
2022 | 469 |
2023 | 469 |
2024 | 417 |
2025 | 362 |
Thereafter | 53 |
Total future minimum lease payments | 1,888 |
Less effects of discounting | (131) |
Total lease liabilities | 1,757 |
Short-term lease liabilities | 429 |
Long-term lease liabilities | 1,328 |
Total |  |
2021 (excluding nine months ended June 30, 2021) | 1,948 |
2022 | 6,719 |
2023 | 4,614 |
2024 | 4,217 |
2025 | 2,713 |
Thereafter | 3,178 |
Total future minimum lease payments | 23,389 |
Less effects of discounting | (2,978) |
Total lease liabilities | 20,411 |
Short-term lease liabilities | 5,926 |
Long-term lease liabilities | $ 14,485 |

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