Equity Method Investments - Investment in Limited Partnership Fund (Details) - USD ($) |
1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 30, 2025 |
Mar. 31, 2022 |
Jul. 31, 2019 |
Jan. 31, 2026 |
Jan. 25, 2025 |
Jan. 31, 2026 |
Jan. 25, 2025 |
Apr. 30, 2025 |
Apr. 30, 2024 |
Apr. 30, 2023 |
Apr. 30, 2022 |
Apr. 30, 2021 |
|
| Equity Method Investments | ||||||||||||
| Equity method investment gain (loss), net of tax | $ (295,000) | $ 2,688,000 | $ 1,055,000 | |||||||||
| Limited Partnership Fund | ||||||||||||
| Equity Method Investments | ||||||||||||
| Capital contributions | $ 528,000 | $ 10,000,000 | $ 10,000,000 | |||||||||
| Contribution commitments | $ 0 | |||||||||||
| Equity method investment gain (loss), net of tax | (295,000) | $ 0 | 2,688,000 | 1,066,000 | ||||||||
| Carrying value of equity method investments | 35,923,000 | 35,923,000 | $ 30,423,000 | |||||||||
| Limited Partnership Fund | Equity method investment loss, net of tax | ||||||||||||
| Equity Method Investments | ||||||||||||
| Income tax expense from equity method investments | $ 0 | $ 0 | 0 | $ 0 | ||||||||
| Limited Partnership Fund, Technologies and Start-Up | ||||||||||||
| Equity Method Investments | ||||||||||||
| Capital contributions | $ 20,000,000 | $ 3,244,000 | $ 5,674,000 | $ 3,074,000 | $ 5,778,000 | |||||||
| Expected years contributions will be made | 5 years | |||||||||||
| Additional capital contributions | $ 2,230,000 | |||||||||||