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INVESTMENT SECURITIES - Schedule of Investment Securities (Details) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Debt and Equity Securities, FV-NI [Line Items]    
Debt securities available for sale $ 91,157 $ 73,225
Long-term investment securities at fair value 30,461 29,402
Total equity securities at fair value 68,326 67,112
Total investment securities at fair value 159,483 140,337
Current investment securities at fair value 129,022 110,935
Equity-method investments 19,495 17,358
Total long-term investments 49,956 46,760
Equity securities and other long-term investments at cost 7,555 7,555
Marketable equity securities    
Debt and Equity Securities, FV-NI [Line Items]    
Equity securities at fair value: 14,139 14,286
Mutual funds invested in debt securities    
Debt and Equity Securities, FV-NI [Line Items]    
Equity securities at fair value: $ 23,726 $ 23,424