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Fair Value Measurements - Summary of Financial Instruments Measured on a Recurring Basis (Detail) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021
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Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Cash | $ (59) | $ 310
Fair value of financial assets | 68,838 | 104,715
Fair value of financial liabilities | 27,968 | 19,420
Warrant liabilities |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Fair value of financial liabilities | 27,730 | 18,062
Derivative liabilities |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Fair value of financial liabilities | 238 | 1,358
Restricted cash |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Fair value of financial assets | 218 | 218
Money market funds |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Fair value of financial assets | 68,679 | 104,187
Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Cash | (59) | 310
Fair value of financial assets | 68,838 | 104,715
Fair value of financial liabilities | 0 | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Warrant liabilities |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Fair value of financial liabilities | 0 | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Derivative liabilities |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Fair value of financial liabilities | 0 | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Restricted cash |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Fair value of financial assets | 218 | 218
Quoted Prices in Active Markets for Identical Assets (Level 1) | Money market funds |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Fair value of financial assets | 68,679 | 104,187
Significant Other Observable Inputs (Level 2) |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Cash | 0 | 0
Fair value of financial assets | 0 | 0
Fair value of financial liabilities | 0 | 0
Significant Other Observable Inputs (Level 2) | Warrant liabilities |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Fair value of financial liabilities | 0 | 0
Significant Other Observable Inputs (Level 2) | Derivative liabilities |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Fair value of financial liabilities | 0 | 0
Significant Other Observable Inputs (Level 2) | Restricted cash |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Fair value of financial assets | 0 | 0
Significant Other Observable Inputs (Level 2) | Money market funds |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Fair value of financial assets | 0 | 0
Significant Unobservable Inputs (Level 3) |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Cash | 0 | 0
Fair value of financial assets | 0 | 0
Fair value of financial liabilities | 27,968 | 19,420
Significant Unobservable Inputs (Level 3) | Warrant liabilities |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Fair value of financial liabilities | 27,730 | 18,062
Significant Unobservable Inputs (Level 3) | Derivative liabilities |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Fair value of financial liabilities | 238 | 1,358
Significant Unobservable Inputs (Level 3) | Restricted cash |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Fair value of financial assets | 0 | 0
Significant Unobservable Inputs (Level 3) | Money market funds |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Fair value of financial assets | $ 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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