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Stockholders' Equity - Summary of Unvested Shares and Unvested Stock Liability (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2021
USD ($)
shares
Equity [Abstract]  
Number of Unvested Shares, Beginning balance | shares 36,492
Number of Unvested Shares, Vested shares | shares (11,207)
Number of Unvested Shares, Ending balance | shares 25,285
Unvested Stock Liability, Beginning balance | $ $ 27
Unvested Stock Liability, Vested shares | $ (8)
Unvested Stock Liability, Ending balance | $ $ 19