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FAIR VALUE MEASUREMENTS - Schedule of Financial Instruments Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Assets: |  |
Assets | $ 268,940 | $ 430,326
Liabilities: |  |
Equipment Notes | 263,249 | 270,000
Total liabilities | 263,875 | 270,751
Money market funds |  |
Assets: |  |
Assets | 268,940 | 230,626
Treasury bills |  |
Assets: |  |
Assets |  | 199,700
Public Warrants |  |
Liabilities: |  |
Warrant liability | 400 | 479
Private Warrants |  |
Liabilities: |  |
Warrant liability | 226 | 272
Level 1 |  |
Assets: |  |
Assets | 268,940 | 430,326
Liabilities: |  |
Equipment Notes | 0 | 0
Total liabilities | 400 | 479
Level 1 | Money market funds |  |
Assets: |  |
Assets | 268,940 | 230,626
Level 1 | Treasury bills |  |
Assets: |  |
Assets |  | 199,700
Level 1 | Public Warrants |  |
Liabilities: |  |
Warrant liability | 400 | 479
Level 1 | Private Warrants |  |
Liabilities: |  |
Warrant liability | 0 | 0
Level 2 |  |
Assets: |  |
Assets | 0 | 0
Liabilities: |  |
Equipment Notes | 0 | 270,000
Total liabilities | 226 | 270,272
Level 2 | Money market funds |  |
Assets: |  |
Assets | 0 | 0
Level 2 | Treasury bills |  |
Assets: |  |
Assets |  | 0
Level 2 | Public Warrants |  |
Liabilities: |  |
Warrant liability | 0 | 0
Level 2 | Private Warrants |  |
Liabilities: |  |
Warrant liability | 226 | 272
Level 3 |  |
Assets: |  |
Assets | 0 | 0
Liabilities: |  |
Equipment Notes | 263,249 | 0
Total liabilities | 263,249 | 0
Level 3 | Money market funds |  |
Assets: |  |
Assets | 0 | 0
Level 3 | Treasury bills |  |
Assets: |  |
Assets |  | 0
Level 3 | Public Warrants |  |
Liabilities: |  |
Warrant liability | 0 | 0
Level 3 | Private Warrants |  |
Liabilities: |  |
Warrant liability | $ 0 | $ 0

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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + 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 (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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- Definition Fair value of financial and nonfinancial obligations. + 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 (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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- Definition The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. + References No definition available. + Details
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