INVESTMENTS AND FAIR VALUE MEASUREMENTS - AMORTIZED COST (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Debt and Equity Securities, FV-NI
Cost or Amortized Cost	$ 125,948	$ 95,096
Unrealized Gains	1,298	290
Unrealized Losses	(17,214)	(1,669)
Fair Value	110,032	93,717
Mutual Fund
Debt and Equity Securities, FV-NI
Cost or Amortized Cost	30,400	50,000
Unrealized Gains	0	0
Unrealized Losses	(3,265)	(338)
Fair Value	27,135	49,662
Corporate Bond Securities
Debt and Equity Securities, FV-NI
Cost or Amortized Cost	15,095	6,996
Unrealized Gains	277	290
Unrealized Losses	(457)	0
Fair Value	14,915	7,286
Equity Securities
Debt and Equity Securities, FV-NI
Cost or Amortized Cost	54,813	38,100
Unrealized Gains	1,002	0
Unrealized Losses	(13,468)	(1,331)
Fair Value	42,347	$ 36,769
US Treasury Securities [Member]
Debt and Equity Securities, FV-NI
Cost or Amortized Cost	25,640
Unrealized Gains	19
Unrealized Losses	(24)
Fair Value	$ 25,635

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Marketable Securities Cumulative Unrealized Losses

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Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Cost of investment in debt investment in debt security measured at fair value with change in fair value recognized in net income (trading) and investment in equity security with change in fair value recognized in net income (FV-NI). Excludes equity method investment and investment in equity security without readily determinable fair value.

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Amount of investment in debt security measured at fair value with change in fair value recognized in net income (trading) and investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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