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FAIR VALUE MEASUREMENTS - Changes to Fair Value Measurement Level 3 (Details) - Liabilities - Level 3 - Fair Value, Recurring - USD ($) $ in Thousands | 9 Months Ended
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Sep. 30, 2022 | Sep. 30, 2021
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Derivative liability, beginning balance | $ 126,117 | $ 79,069
Issuance of series warrants |  | 6,640
Remeasurement to fair value | (34,590) | 203,866
Derivative liability, ending balance | 91,527 | 289,575
Series A Warrant Liabilities |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Derivative liability, beginning balance | 11,291 | 0
Issuance of series warrants |  | 6,640
Remeasurement to fair value | (1,895) | 11,887
Derivative liability, ending balance | 9,396 | 18,527
Series A Embedded Derivative Liabilities |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Derivative liability, beginning balance | 18,448 | 26,728
Issuance of series warrants |  | 0
Remeasurement to fair value | 3,941 | 14,683
Derivative liability, ending balance | 22,389 | 41,411
Series B Warrant Liabilities |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Derivative liability, beginning balance | 96,378 | 52,341
Issuance of series warrants |  | 0
Remeasurement to fair value | (36,636) | 177,296
Derivative liability, ending balance | $ 59,742 | $ 229,637

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- Definition Amount of increase (decrease) of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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- Definition Amount of purchases, (sales), issuances and (settlements) of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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