Fair Value Measurements -Summary of Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation (Detail) - USD ($) $ in Thousands |
6 Months Ended | 12 Months Ended |
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Jun. 30, 2021 |
Dec. 31, 2019 |
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| Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||
| Beginning Balance | $ 627 | $ 27,033 |
| Initial fair value of derivative liabilities | 602 | 4,104 |
| Change in fair value | 25 | 4,947 |
| Settlement of derivative liabilities upon conversion of convertible notes into redeemable convertible preferred stock | (36,084) | |
| Ending Balance | $ 627 | $ 27,033 |
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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 issuances 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 Amount of 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. 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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