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Basis of Presentation and Summary of Significant Accounting Policies - Reconciliation of Merger Elements (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2021 | Mar. 31, 2020 | Dec. 31, 2020
Business Acquisition [Line Items] |  |  |
Net contribution from the Merger and PIPE Financing | $ 100,698 | $ 0 |
Merger Agreement |  |  |
Business Acquisition [Line Items] |  |  |
Cash - trust account and cash | 54,044 |  |
Cash - PIPE Investment | 46,844 |  |
Net contribution from the Merger and PIPE Financing | 100,698 |  |
Less: accrued transaction costs and other liabilities | (1,106) |  |
Merger and PIPE Investment | 99,300 |  |
Merger Agreement | Transaction Costs Paid In 2021 |  |  |
Business Acquisition [Line Items] |  |  |
Transaction costs paid | $ (190) |  |
Merger Agreement | Transaction Costs Paid In 2020 |  |  |
Business Acquisition [Line Items] |  |  |
Transaction costs paid |  |  | $ (292)

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