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REGULATORY AUTHORITIES - Additional Information (Details) $ in Thousands | Jun. 30, 2025 USD ($) | Mar. 31, 2025 USD ($)
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LFNY |  |
Regulatory Requirements [Line Items] |  |
Regulatory capital | $ 103,804 |
Regulatory capital in excess of minimum requirement | $ 100,099 |
Aggregate indebtedness to net capital ratio | 0.54 |
U.K. Subsidiaries |  |
Regulatory Requirements [Line Items] |  |
Regulatory capital | $ 105,992 |
Regulatory capital in excess of minimum requirement | 29,452 |
CFLF |  |
Regulatory Requirements [Line Items] |  |
Regulatory capital |  | $ 164,854
Regulatory capital in excess of minimum requirement |  | 64,272
Combined European Regulated Group |  |
Regulatory Requirements [Line Items] |  |
Regulatory capital |  | 187,958
Regulatory capital in excess of minimum requirement |  | $ 65,081
Other U.S. and Non-U.S. Subsidiaries |  |
Regulatory Requirements [Line Items] |  |
Regulatory capital | 108,666 |
Regulatory capital in excess of minimum requirement | $ 83,473 |

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