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Fair Value Measurements - Summary of Changes in Fair Value of the Earnout Liabilities (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
Fair Value Disclosures [Abstract] |  |
Fair value at January 1, 2020 |  |
Additions | 889,200 |
Change in fair value | 1,554,800 |
Fair value at December 31, 2020 | $ 2,444,000 |

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