Non-marketable Equity Securities - Schedule of Non-marketable Equity Securities (Details) - USD ($) $ in Thousands |
Mar. 31, 2026 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|---|---|---|---|
| Investments, Debt and Equity Securities [Abstract] | |||
| Opening gross investment balance (as of July 1, 2025 and July 1, 2024) | $ 122,217 | $ 66,217 | |
| Investments made during the period | $ 42,000 | 56,000 | |
| Cumulative impairment adjustments | (23,600) | (11,600) | |
| Total carrying value - before the adjustments under equity method | 140,617 | 110,617 | |
| Securities under equity method - cumulative adjustment | (1,027) | 0 | |
| Total carrying value (as of March 31, 2026 and June 30, 2025) | $ 139,590 | $ 110,617 |