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Fair Value Measurements - Changes in Fair Value of Derivative Liability (Details) - USD ($) $ in Thousands | 3 Months Ended
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Jun. 30, 2021 | Mar. 31, 2021
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair value, beginning of period | $ 1,233 | $ 0
Initial fair value estimate of equity warrant rights upon issuance |  | 1,233
Fair value, end of period | 1,076 | $ 1,233
Revenue |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Revaluation of equity warrant rights | 719 |
Other income (expense), net |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Revaluation of equity warrant rights | $ (876) |

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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). + 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=123874694&loc=d3e19207-110258 + Details
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