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CASH, CASH EQUIVALENTS, MARKETABLE SECURITIES AND INVESTMENTS - Narrative (Details) - USD ($) $ in Thousands, shares in Millions | 1 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Apr. 30, 2023 | Feb. 28, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Mar. 31, 2024
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Change in fair value of derivative investment |  |  | $ 0 | $ 206 |
Foreign Exchange Forward | Napatech |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Number of shares acquired (in shares) | 6.2 | 6.2 |  |  |
Payment for common stock |  | $ 7,500 |  |  |
Change in fair value of derivative investment | $ 200 |  |  |  |
Fair value |  |  | 19,800 |  | $ 11,500
Increase in fair value of equity investment |  |  | 7,600 | 100 |
Unrealized gain related to foreign currency translation |  |  | $ 700 |  |
Unrealized loss related to foreign currency translation |  |  |  | $ 0 |

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