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GOODWILL AND OTHER INTANGIBLE ASSETS - Goodwill by Business Segments (Details) $ in Thousands	6 Months Ended
	Sep. 30, 2024 USD ($)
Goodwill
Goodwill, Beginning Balance	$ 1,127,497
Changes	50,260
Goodwill, Ending Balance	1,177,757
Corporate Finance
Goodwill
Goodwill, Beginning Balance	872,967
Changes	50,260
Goodwill, Ending Balance	923,227
Financial Restructuring
Goodwill
Goodwill, Beginning Balance	162,815
Changes	0
Goodwill, Ending Balance	162,815
Financial Advisory Services
Goodwill
Goodwill, Beginning Balance	91,715
Changes	0
Goodwill, Ending Balance	$ 91,715

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 852
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
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-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(10)(1))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount of increase (decrease) of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482573/350-20-50-1

+ Details

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X

- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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X

- Details

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X

- Details

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Period Type:

X

- Details

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Period Type: