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Fair Value Measurement - Summary of Fair Value Assets and Liabilities (Details) - Money Market Funds - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Assets: |  |
Assets | $ 6,908 | $ 17,905
Level 1 |  |
Assets: |  |
Assets | $ 6,908 | $ 17,905

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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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