Fair Value Measurement - Summary of Changes in Fair Value of Company's Level 3 Financial Liabilities (Details) - Level 3 - USD ($) $ in Thousands |
12 Months Ended | |
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Dec. 31, 2019 |
Dec. 31, 2018 |
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| Trade-In Guarantee | ||
| Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items] | ||
| Beginning Balance | $ 268 | $ 805 |
| Recognition of revenue | $ (268) | (537) |
| Ending Balance | 268 | |
| Warrant Liability | ||
| Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items] | ||
| Beginning Balance | 3,785 | |
| Change in fair value | 970 | |
| Exercised and reclassified to equity | (1,804) | |
| Conversion of preferred stock to common stock and reclassified to equity | $ (2,951) | |
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- Definition Fair value measurement with unobservable inputs reconciliation, conversion of preferred stock to common stock and reclassified to equity. No definition available.
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- Definition Fair value measurement with unobservable inputs reconciliation, exercised and reclassified to equity. No definition available.
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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. No definition available.
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- Definition Amount of gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of sales 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. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Fair value 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. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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