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REGULATORY AUTHORITIES - Additional Information (Details) $ in Thousands | Jun. 30, 2023 USD ($) | Mar. 31, 2023 USD ($)
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LFNY |  |
Regulatory Requirements [Line Items] |  |
Aggregate indebtedness to net capital ratio | 2.54 |
Regulatory capital | $ 39,311 |
Regulatory capital in excess of minimum requirement | 32,662 |
U.K. Subsidiaries |  |
Regulatory Requirements [Line Items] |  |
Regulatory capital | 209,893 |
Regulatory capital in excess of minimum requirement | 144,357 |
CFLF |  |
Regulatory Requirements [Line Items] |  |
Regulatory capital |  | $ 154,250
Regulatory capital in excess of minimum requirement |  | 73,195
Combined European Regulated Group |  |
Regulatory Requirements [Line Items] |  |
Regulatory capital |  | 179,474
Regulatory capital in excess of minimum requirement |  | $ 89,649
Other U.S. and Non-U.S. Subsidiaries |  |
Regulatory Requirements [Line Items] |  |
Regulatory capital | 154,896 |
Regulatory capital in excess of minimum requirement | $ 120,690 |

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