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RELATED‑PARTY TRANSACTIONS (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023
Related Party Transaction [Line Items]
Accounts receivable, net of allowance for credit losses	$ 257,326	$ 199,630
Unbilled work in progress, net of allowance for credit losses	157,760	192,012
Other assets	131,365	90,677
Financial and Valuation Advisory (2)
Related Party Transaction [Line Items]
Financial advisory services fees	3,640	9,044	$ 284
Company Employees
Related Party Transaction [Line Items]
Other assets	44,290	$ 32,937
Related Party
Related Party Transaction [Line Items]
Accounts receivable, net of allowance for credit losses	1,111
Unbilled work in progress, net of allowance for credit losses	$ 7,228

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