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v3.21.2

Basis of Presentation, Liquidity and Risks and Uncertainties (Details) - USD ($) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2021 | Mar. 31, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020 | Dec. 31, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |
Net loss | $ 82,139,958 |  | $ 128,703,059 | $ 136,542,089 | $ 161,244,113 |
Working capital | 490,700,000 |  |  | 490,700,000 |  |
Retained earnings (accumulated deficit) | 1,042,738,901 |  |  | 1,042,738,901 |  | $ 906,196,812
Cash, cash equivalents, and short-term investments | $ 443,700,000 |  |  | 443,700,000 |  |
Proceeds from issuance of stock |  |  |  | $ 162,105,030 | $ 329,960,855 |
Common stock | Underwritten Public Offering |  |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |
Proceeds from issuance of stock |  | $ 162,100,000 |  |  |  |
Common stock | Sales Agreements |  |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |
Proceeds from issuance of stock |  | $ 454,500,000 |  |  |  |

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