Tax Receivable Agreement Liability - Schedule of Tax Agreement Liability (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | |
|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Jun. 30, 2026 |
|
| Tax Receivable Agreement [Roll Forward] | |||
| Beginning balance | $ 38,672 | $ 40,433 | $ 40,433 |
| Additions (reductions) to tax receivable agreement: | |||
| Exchange of LLC Units for Class A Common Stock | 0 | 26 | |
| Adjustment for change in estimated tax rate or benefits | 0 | $ (856) | (1,029) |
| Payments under tax receivable agreement | 0 | (758) | |
| Ending fiscal year balance | 38,672 | 38,672 | |
| Less: current portion under tax receivable agreement | (113) | (113) | |
| Ending balance | $ 38,559 | $ 38,559 | |