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RELATED PARTY TRANSACTIONS - Narrative Part 2 (Details) $ in Thousands				3 Months Ended
	Feb. 05, 2024 USD ($)	Aug. 21, 2023 USD ($)	Mar. 10, 2023 USD ($) party	Mar. 31, 2024 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)	Nov. 02, 2023 USD ($) member	Jun. 30, 2023 member
Related Party Transaction [Line Items]
Equity method investments, fair value disclosure				$ 288,436		$ 283,057
Loans receivable, at fair value				452,496		$ 532,419
Related Party
Related Party Transaction [Line Items]
Interest income, operating				2,154
Underwriting and financial advisory and other fees				$ 179	$ 784
Related Party | BRC Partners Opportunity Fund, LP
Related Party Transaction [Line Items]
Ownership, percentage				58.20%
Related Party | BRC Partners Opportunity Fund, LP | Co-Chief Executive Officer
Related Party Transaction [Line Items]
Ownership, percentage				24.90%
Related Party | 272 Capital L.P
Related Party Transaction [Line Items]
Ownership, percentage						15.30%
Torticity, LLC | Related Party
Related Party Transaction [Line Items]
Loans receivable, at fair value				$ 16,475		$ 6,791	$ 15,369
Loans receivable, fair value disclosure, drawn							6,690
Loans receivable, fair value disclosure, remaining							$ 8,679
Loans receivable, basis spread on variable rate							15.00%
Interest income, operating				1,209
Number of senior management members | member							1
Kanaci Technologies, LLC | Related Party
Related Party Transaction [Line Items]
Loans receivable, at fair value				7,914		$ 3,904	$ 10,000
Loans receivable, fair value disclosure, drawn							4,000
Loans receivable, fair value disclosure, remaining							$ 6,000
Loans receivable, basis spread on variable rate							15.00%
Interest income, operating				368
Number of senior management members appointed | member								1
Loan Receivable Sold | Related Party
Related Party Transaction [Line Items]
Financing receivable sold			$ 7,600
Number of related parties | party			2
272LP And 272 Advisors, LLC | Related Party
Related Party Transaction [Line Items]
Financing receivable, sale, promissory note	$ 2,000
Financing receivable, sale, aggregate revenue share amount	$ 4,100
Freedom VCM Holdings, LLC
Related Party Transaction [Line Items]
Dividends paid, equal to the greater of net after-tax proceeds, percentage						80.00%
Dividends paid, equal to the greater of gross proceeds, percentage						50.00%
Take-private transaction, price		$ 227,296
Equity method investments, fair value disclosure				197,782		$ 232,065
Loans receivable, at fair value				$ 15,868		$ 20,624
BRC Partners Opportunity Fund, LP | Loan Receivable Sold | Related Party
Related Party Transaction [Line Items]
Financing receivable sold			$ 3,519
272 Capital L.P | Loan Receivable Sold | Related Party
Related Party Transaction [Line Items]
Financing receivable sold			$ 4,081

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