SUBSEQUENT EVENT - Narrative (Details) - USD ($) $ in Thousands |
May 01, 2026 |
Mar. 31, 2026 |
Mar. 31, 2025 |
Mar. 31, 2024 |
Mar. 31, 2023 |
Mar. 31, 2022 |
Mar. 31, 2021 |
Mar. 31, 2020 |
Mar. 31, 2019 |
Mar. 31, 2018 |
Mar. 31, 2017 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Subsequent Event [Line Items] | |||||||||||
| Total borrowings, at cost | $ 572,888 | $ 463,738 | $ 404,238 | $ 297,688 | $ 267,584 | $ 155,434 | $ 54,296 | $ 58,096 | $ 112,096 | $ 74,796 | |
| Notes Payable | |||||||||||
| Subsequent Event [Line Items] | |||||||||||
| Total borrowings, at cost | $ 548,988 | $ 463,738 | |||||||||
| 5.00% Notes Due 2026 | Notes Payable | |||||||||||
| Subsequent Event [Line Items] | |||||||||||
| Interest Rate | 5.00% | 5.00% | 5.00% | ||||||||
| Total borrowings, at cost | $ 127,938 | $ 127,938 | $ 127,900 | ||||||||
| 5.00% Notes Due 2026 | Notes Payable | Subsequent Event | |||||||||||
| Subsequent Event [Line Items] | |||||||||||
| Total borrowings, at cost | $ 127,900 |