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REGULATORY AUTHORITIES - Additional Information (Details) | Sep. 30, 2023 USD ($) | Jun. 30, 2023 USD ($)
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LFNY |  |
Regulatory Requirements [Line Items] |  |
Minimum net capital requirement as defined under exchange act | $ 5,000 |
Aggregate indebtedness to net capital ratio | 0.74 |
Regulatory capital | $ 73,105,000 |
Regulatory capital in excess of minimum requirement | 69,493,000 |
U.K. Subsidiaries |  |
Regulatory Requirements [Line Items] |  |
Regulatory capital | 174,572,000 |
Regulatory capital in excess of minimum requirement | 111,142,000 |
CFLF |  |
Regulatory Requirements [Line Items] |  |
Regulatory capital |  | $ 154,143,000
Regulatory capital in excess of minimum requirement |  | 68,939,000
Combined European Regulated Group |  |
Regulatory Requirements [Line Items] |  |
Regulatory capital |  | 180,261,000
Regulatory capital in excess of minimum requirement |  | $ 86,449,000
Other U.S. and Non-U.S. Subsidiaries |  |
Regulatory Requirements [Line Items] |  |
Regulatory capital | 141,320,000 |
Regulatory capital in excess of minimum requirement | $ 114,703,000 |

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- Definition Minimum amount of net capital required to be maintained by broker-dealer parent, calculated under Aggregate Indebtedness Standard. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name Rule 15c3-1 -Number 240 -Section 15c3-1 -Publisher SEC + Details
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- Definition Amount of total capital as defined by regulatory framework. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480696/942-505-50-1 + Details
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