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Equity and Warrants - Common Shares Outstanding and Common Stock Equivalents (Details) - shares | Mar. 31, 2021 | Dec. 31, 2020 | Jul. 30, 2020 | Dec. 31, 2019
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Class of Stock [Line Items] |  |  |  |
Issued and outstanding common shares | 87,355,733 | 75,519,151 |  |
Earnout common shares | 4,099,999 | 6,150,000 |  |
Total common shares issued and outstanding | 91,455,732 | 81,669,151 | 21,562,100 | 34,197,822
Common shares reserved for future issuance: |  |  |  |
Common stock options outstanding |  | 6,414,611 |  | 7,428,682
Common stock outstanding and reserved for future issuance | 116,179,876 | 116,128,488 |  |
Restricted stock |  |  |  |
Common shares reserved for future issuance: |  |  |  |
Common stock outstanding and reserved for future issuance |  | 166,762 |  |
Restricted stock units |  |  |  |
Common shares reserved for future issuance: |  |  |  |
Common stock outstanding and reserved for future issuance | 1,282,327 | 2,415,140 |  |
2020 Equity Plan |  |  |  |
Common shares reserved for future issuance: |  |  |  |
Common stock outstanding and reserved for future issuance | 11,005,115 | 11,137,824 |  |
Employee awards |  |  |  |
Common shares reserved for future issuance: |  |  |  |
Common stock options outstanding |  | 6,414,611 |  |
Public Warrants |  |  |  |
Common shares reserved for future issuance: |  |  |  |
Common stock outstanding and reserved for future issuance | 537,377 | 8,625,000 |  |
Private Warrants |  |  |  |
Common shares reserved for future issuance: |  |  |  |
Common stock outstanding and reserved for future issuance | 5,700,000 | 5,700,000 |  |

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