Investments - Schedule of Cumulative Gross Unrealized Gains(Loss) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
Mar. 31, 2024 |
|
| Equity Method Investments and Joint Ventures [Abstract] | |||
| Cumulative gross unrealized gains | $ 79,414 | $ 79,002 | $ 70,235 |
| Cumulative gross unrealized losses | $ (43,289) | $ (43,289) | $ (43,289) |