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Income Taxes - Narrative (Details) - USD ($) | 12 Months Ended
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Mar. 31, 2024 | Mar. 31, 2023 | Mar. 31, 2022
Income Tax Disclosure [Abstract] |  |  |
Increase in deferred tax assets due to remeasurement of non-controlling interest in subsidiaries | $ 133,700,000 |  |
Increase in deferred tax assets due to exchange of partnership units for common stock | 15,200,000 |  |
Increase in valuation allowance | 1,300,000 |  |
Increase in due to related parties, tax receivable agreements | $ 17,400,000 |  |
Percentage of total net cash savings due to exchanging limited partners | 85.00% |  |
Payments to related partied under Tax Receivable Agreements | $ 10,281,000 | $ 5,981,000 | $ 787,000
Due to related parties, tax receivable agreements | 206,800,000 |  |
Deferred tax assets, valuation allowance | 13,596,000 | $ 12,352,000 | $ 13,422,000
Unrecognized tax benefits | 0 |  |
Changes to uncertain tax positions | $ 0 |  |

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