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INVESTMENTS AND FAIR VALUE MEASUREMENTS - MARKETABLE SECURITIES ON BS (Details) - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Debt and Equity Securities, FV-NI |  |
Corporate bonds | $ 17,147 |
Other assets | 3,705 | $ 4,809
Total assets at fair value | 96,623 | 93,717
Mutual Fund |  |
Debt and Equity Securities, FV-NI |  |
Equity securities and mutual funds | 37,307 | 49,662
Equity Securities |  |
Debt and Equity Securities, FV-NI |  |
Equity securities and mutual funds | 42,169 | 36,769
Corporate Bond Securities |  |
Debt and Equity Securities, FV-NI |  |
Corporate bonds | 17,147 | 7,286
Marketable Securities |  |
Debt and Equity Securities, FV-NI |  |
Marketable equity securities | 79,476 | 86,431
Marketable Securities | Mutual Fund |  |
Debt and Equity Securities, FV-NI |  |
Equity securities and mutual funds | 37,307 | 49,662
Marketable Securities | Equity Securities |  |
Debt and Equity Securities, FV-NI |  |
Equity securities and mutual funds | 42,169 | 36,769
Marketable Securities | Corporate Bond Securities |  |
Debt and Equity Securities, FV-NI |  |
Corporate bonds | 0 | 0
Other Current Assets |  |
Debt and Equity Securities, FV-NI |  |
Other assets | 17,147 | 7,286
Other Current Assets | Mutual Fund |  |
Debt and Equity Securities, FV-NI |  |
Equity securities and mutual funds | 0 | 0
Other Current Assets | Equity Securities |  |
Debt and Equity Securities, FV-NI |  |
Equity securities and mutual funds | 0 | 0
Other Current Assets | Corporate Bond Securities |  |
Debt and Equity Securities, FV-NI |  |
Corporate bonds | $ 17,147 | $ 7,286

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