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INVESTMENTS IN UNCONSOLIDATED SUBSIDIARIES (Narrative) (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Mar. 31, 2023
Sep. 30, 2024
Dec. 31, 2023
Mar. 31, 2022
Dec. 31, 2021
Schedule of Investments [Line Items]          
Total unfunded commitments   $ 20,780      
Swell Financial, Inc.          
Schedule of Investments [Line Items]          
Proceeds from intellectual property rights and platform usage feeds from products $ 1,500 1,400 $ 1,500    
Swell Financial, Inc. | Maximum          
Schedule of Investments [Line Items]          
Proceeds from sale of equity method investment securities $ 500        
JAM FINTOP Banktech Fund, L.P.          
Schedule of Investments [Line Items]          
Equity method investments         $ 2,000
Swell Financial, Inc.          
Schedule of Investments [Line Items]          
Equity method investments       $ 2,000  
LIHTC          
Schedule of Investments [Line Items]          
Total unfunded commitments   19,977 22,000    
Other          
Schedule of Investments [Line Items]          
Total unfunded commitments   803 1,000    
Fund Commitments          
Schedule of Investments [Line Items]          
Funded commitments, LIHTC   $ 63,500 $ 47,800