Annual report pursuant to Section 13 and 15(d)

FAIR VALUE MEASUREMENTS - Schedule of Rollforward of Level 3 Assets at Cost Adjusted for any Impairment and Observable Price Changes (Details)

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FAIR VALUE MEASUREMENTS - Schedule of Rollforward of Level 3 Assets at Cost Adjusted for any Impairment and Observable Price Changes (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]      
Conversion of note receivable $ 1,559 $ 0 $ 0
Other investments      
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]      
Beginning balance 8,369 4,321  
Purchases 5,215 4,048  
Conversion of note receivable 1,559    
Contribution of warehoused investments to managed funds (3,117)    
Ending balance $ 12,026 $ 8,369 $ 4,321