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RELATED PARTY TRANSACTIONS (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Mar. 31, 2024
Related Party Transaction [Line Items] |  |  |  |  |
Accounts receivable | $ 219,133 |  | $ 219,133 |  | $ 199,630
Unbilled work in progress | 138,293 |  | 138,293 |  | 192,012
Other assets | 113,916 |  | 113,916 |  | 90,677
Related Party |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Accounts receivable | 412 |  | 412 |  |
Unbilled work in progress |  |  |  |  | 7,228
Certain Employees |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Other assets | 40,531 |  | 40,531 |  | $ 32,937
Financial Advisory Services |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Related party transaction, amounts of transaction | $ 1,379 | $ 2 | $ 1,421 | $ 1,537 |

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