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RELATED PARTY TRANSACTIONS (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Mar. 31, 2025
Related Party Transaction [Line Items]
Accounts receivable	$ 218,177		$ 257,326
Unbilled work in progress	180,818		157,760
Other assets	135,209		131,365
Related Party
Related Party Transaction [Line Items]
Accounts receivable	1,600
Unbilled work in progress			1,111
Certain Employees
Related Party Transaction [Line Items]
Other assets	37,048		$ 44,290
Financial Advisory Services
Related Party Transaction [Line Items]
Related party transaction, amounts of transaction	$ 429	$ 42

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