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FAIR VALUE MEASUREMENTS - Fair Value on a Recurring Basis (Details) - Fair Value, Recurring - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
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Assets | Equity securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, fair value disclosure | $ 64,511 | $ 61,608
Assets | Level 1 | Equity securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, fair value disclosure | 64,511 | 61,608
Assets | Level 1 | Equity securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, fair value disclosure | 0 | 0
Assets | Level 3 | Equity securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets, fair value disclosure | 0 | 0
Liabilities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Financial and nonfinancial liabilities, fair value disclosure | 0 | 101,615
Liabilities | Series A embedded derivative liabilities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Financial and nonfinancial liabilities, fair value disclosure | 0 | 16,835
Liabilities | Series B warrants |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Financial and nonfinancial liabilities, fair value disclosure | 0 | 84,780
Liabilities | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Financial and nonfinancial liabilities, fair value disclosure | 0 | 0
Liabilities | Level 1 | Series A embedded derivative liabilities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Financial and nonfinancial liabilities, fair value disclosure | 0 | 0
Liabilities | Level 1 | Series B warrants |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Financial and nonfinancial liabilities, fair value disclosure | 0 | 0
Liabilities | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Financial and nonfinancial liabilities, fair value disclosure | 0 | 0
Liabilities | Level 1 | Series A embedded derivative liabilities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Financial and nonfinancial liabilities, fair value disclosure | 0 | 0
Liabilities | Level 1 | Series B warrants |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Financial and nonfinancial liabilities, fair value disclosure | 0 | 0
Liabilities | Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Financial and nonfinancial liabilities, fair value disclosure | 0 | 101,615
Liabilities | Level 3 | Series A embedded derivative liabilities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Financial and nonfinancial liabilities, fair value disclosure | 0 | 16,835
Liabilities | Level 3 | Series B warrants |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Financial and nonfinancial liabilities, fair value disclosure | $ 0 | $ 84,780

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