INVESTMENTS - Cash and Financial Assets Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Cash And Cash Equivalents And Marketable securities [Line Items]
Cost, Cash and cash equivalents	$ 115,307	$ 94,440
Cost, Total	172,649	149,162
Unrealized Gains (Losses), Total	(3,122)	569
Accrued Interest, Debt securities	428	310
Estimated Fair Value, Total	169,955	150,041
Investment Securities	54,648	55,601
Level 1
Cash And Cash Equivalents And Marketable securities [Line Items]
Cost, Equity securities	10,000	10,000
Cost, Total	31,611	30,944
Unrealized Gains (Losses), Equity securities	(3,584)	150
Unrealized Gains (Losses), Total	(3,466)	276
Accrued Interest, Debt securities	114	40
Estimated Fair Value, Equity securities	6,416	10,150
Estimated Fair Value, Total	28,259	31,260
Investment Securities	23,248	25,598
Government & agency securities | Level 1
Cash And Cash Equivalents And Marketable securities [Line Items]
Cost, Debt securities	16,600	15,282
Unrealized Gains (Losses), Debt securities	118	126
Accrued Interest, Debt securities	114	40
Estimated Fair Value, Debt securities	16,832	15,448
Corporate bonds | Level 2
Cash And Cash Equivalents And Marketable securities [Line Items]
Cost, Debt securities	30,742	29,440
Unrealized Gains (Losses), Debt securities	344	293
Accrued Interest, Debt securities	314	270
Estimated Fair Value, Debt securities	31,400	30,003
Cash and cash equivalents, excluding money market accounts
Cash And Cash Equivalents And Marketable securities [Line Items]
Cost, Cash and cash equivalents	110,296	88,778
Estimated Fair Value, Cash and cash equivalents	110,296	88,778
Money market accounts | Level 1
Cash And Cash Equivalents And Marketable securities [Line Items]
Cost, Cash and cash equivalents	5,011	5,662
Estimated Fair Value, Cash and cash equivalents	$ 5,011	$ 5,662