Commitments and contingencies - Operating Leases On Balance Sheet (Detail) - USD ($) $ in Thousands |
Sep. 30, 2022 |
Sep. 30, 2021 |
|---|---|---|
| Assets: | ||
| Operating lease right-of-use-assets | $ 74,948 | $ 61,580 |
| Current liabilities: | ||
| Current portion of operating lease liability | 13,642 | 8,213 |
| Noncurrent liabilities: | ||
| Operating lease liabilities, net of current portion | $ 81,270 | $ 53,156 |