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Summary of Gain Recognized in Consolidated Statements of Operations Due to Changes in Fair Value of Warrant (Detail) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 USD ($)
Warrant | Level 3 |
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items] |
Gain from changes in the fair value of level 3 investments | $ 422

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- Definition Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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