SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) $ in Thousands |
12 Months Ended | |||
|---|---|---|---|---|
|
Mar. 31, 2026
USD ($)
segment
|
Mar. 31, 2025
USD ($)
|
Mar. 31, 2024
USD ($)
|
Apr. 30, 2025
USD ($)
|
|
| Business Combination [Line Items] | ||||
| Fee and commission income | $ 489,765 | $ 505,026 | $ 440,333 | |
| Percentage of default probability on defaulted loans | 100.00% | |||
| Allowance for credit loss accrual percent | 100.00% | |||
| Impairment | $ 0 | 0 | ||
| Goodwill | $ 51,099 | 49,093 | 52,648 | |
| Number of reportable segments | segment | 4 | |||
| Astel Group Ltd | ||||
| Business Combination [Line Items] | ||||
| Goodwill | $ 997 | |||
| Business acquisition, percentage of voting interests acquired | 100.00% | |||
| Minimum | ||||
| Business Combination [Line Items] | ||||
| Useful lives of assets | 3 years | |||
| Maximum | ||||
| Business Combination [Line Items] | ||||
| Useful lives of assets | 65 years | |||
| Single non-related party | Revenue Benchmark | Customer Concentration Risk | ||||
| Business Combination [Line Items] | ||||
| Fee and commission income | $ 345,523 | 284,728 | 196,663 | |
| Interest income from margin loans | $ 21,443 | $ 32,808 | $ 99,594 | |
| X | ||||||||||
- Definition Fee And Commission Income No definition available.
|
| X | ||||||||||
- Definition Financing Receivable Deemed Impossible, Allowance For Credit Loss Accrual Percent No definition available.
|
| X | ||||||||||
- Definition Interest Income From Margin Loans No definition available.
|
| X | ||||||||||
- Definition Percentage Of Default Probability On Defaulted Loans No definition available.
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Percentage of voting equity interest acquired in business combination. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. No definition available.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|