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Capitalization - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | ---
Aug. 31, 2019 | Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Jun. 30, 2021 | Dec. 31, 2020
Warrants |  |  |  |  |  |  |
Net consideration received on transaction |  |  | $ 9,100 |  | $ 28,100 |  |
Number of shares issued in transaction (in shares) |  | 0 | 173,956 | 0 | 542,470 |  |
Issuance of common stock related to acquisition |  |  |  |  | $ 42,869 |  |
Common stock, authorized shares (in shares) |  | 250,000,000 |  | 250,000,000 |  | 250,000,000 | 125,000,000
Maximum |  |  |  |  |  |  |
Warrants |  |  |  |  |  |  |
Net consideration received on transaction | $ 125,000 |  |  |  |  |  |
Value of remaining shares available to be issued and sold in transaction |  | $ 93,000 |  | $ 93,000 |  |  |
Weighted Average |  |  |  |  |  |  |
Warrants |  |  |  |  |  |  |
Sale of stock, weighted average price per share (in USD per share) |  | $ 54.39 |  | $ 53.37 |  |  |

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