v3.26.3
FAIR VALUE MEASUREMENTS - Additional information (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Sep. 29, 2026
Dec. 31, 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Fair value assets $ 316,286   $ 406,931
Securities and other investments owned [1] 307,830   382,461
Equity investments 68,059   90,433
Great American Holdings, LLC      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Equity investments $ 62,250 $ 76,802 83,349
Measurement Input, Cost of Borrowing | New Notes payable | Weighted Average      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Estimated cost of borrowing 0.152    
Partnership interests and other investments at net asset value      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Securities and other investments owned $ 2,342   1,833
Level 3      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Fair value assets $ 122,535   $ 137,608
Percentage of total assets measured in Level 3 of the hierarchy level 7.80%   8.10%
[1]
(1) At September 30, 2026 and December 31, 2025, the balance sheet includes cash of $1,046 and $446, securities and other investments owned, at fair value of $671 and $682, prepaid and other expenses of $3,064 and $3,737, accrued expenses and other liabilities of $28 and $28, and noncontrolling interest of $4,119 and $4,192, respectively, of consolidated variable interest entities (see Note 3 - Variable Interest Entities).