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GOODWILL AND OTHER INTANGIBLE ASSETS - Schedule of Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Mar. 31, 2024
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Goodwill and Intangible Assets Disclosure [Abstract] |  |
Goodwill | $ 1,280,304 | $ 1,127,497
Tradename-Houlihan Lokey | 192,210 | 192,210
Other intangible assets | 133,178 | 98,897
Total cost | 1,605,692 | 1,418,604
Less: accumulated amortization | (103,275) | (93,668)
Goodwill and other intangibles, net | $ 1,502,417 | $ 1,324,936

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