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FAIR VALUE ACCOUNTING - Fair Value Measurements, Recurring and Nonrecurring (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Financial instruments fair value | $ 155,297 | $ 155,297 |  | $ 61,857
Debt Security FV-NI, Interest | 390 | 390 |  |
Proceeds from convertible note redemption | 20,000 | 20,000 | $ 0 |
Fair Value, Recurring |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Cash equivalents(1) | 11,995 | 11,995 |  | 30,336
Investments accounted for at fair value | 26,069 | 26,069 |  | 19,329
Fair Value, Recurring | Marketable Debt Securities |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Marketable Securities, Fair Value | 69,418 | 69,418 |  | 11,125
Fair Value, Recurring | Convertible Note |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Marketable Securities, Fair Value | 46,610 | 46,610 |  |
Fair Value, Recurring | Marketable Equity Securities |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Marketable Securities, Fair Value | 1,205 | 1,205 |  | 1,067
Level 1 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Financial instruments fair value | 27,243 | 27,243 |  | 20,296
Level 1 | Fair Value, Recurring |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Cash equivalents(1) | 0 | 0 |  | 0
Investments accounted for at fair value | 26,063 | 26,063 |  | 19,263
Level 1 | Fair Value, Recurring | Marketable Debt Securities |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Marketable Securities, Fair Value | 0 | 0 |  | 0
Level 1 | Fair Value, Recurring | Convertible Note |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Marketable Securities, Fair Value | 0 | 0 |  |
Level 1 | Fair Value, Recurring | Marketable Equity Securities |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Marketable Securities, Fair Value | 1,180 | 1,180 |  | 1,033
Level 2 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Financial instruments fair value | 81,444 | 81,444 |  | 41,561
Level 2 | Fair Value, Recurring |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Cash equivalents(1) | 11,995 | 11,995 |  | 30,336
Investments accounted for at fair value | 6 | 6 |  | 66
Level 2 | Fair Value, Recurring | Marketable Debt Securities |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Marketable Securities, Fair Value | 69,418 | 69,418 |  | 11,125
Level 2 | Fair Value, Recurring | Convertible Note |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Marketable Securities, Fair Value | 0 | 0 |  |
Level 2 | Fair Value, Recurring | Marketable Equity Securities |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Marketable Securities, Fair Value | 25 | 25 |  | 34
Level 3 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Financial instruments fair value | 46,610 | 46,610 |  | 0
Level 3 | Fair Value, Recurring |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Cash equivalents(1) | 0 | 0 |  | 0
Investments accounted for at fair value | 0 | 0 |  | 0
Level 3 | Fair Value, Recurring | Marketable Debt Securities |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Marketable Securities, Fair Value | 0 | 0 |  | 0
Level 3 | Fair Value, Recurring | Convertible Note |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Marketable Securities, Fair Value | 46,610 | 46,610 |  |
Level 3 | Fair Value, Recurring | Marketable Equity Securities |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Marketable Securities, Fair Value | $ 0 | $ 0 |  | $ 0

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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-3 + Details
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