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v3.21.2

Stockholders' Equity - Common Stock and Warrants (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 1 Months Ended | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | ---
Sep. 29, 2021 | Sep. 30, 2021 | Sep. 30, 2021 | Mar. 31, 2021 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2020
Collaborative Agreements |  |  |  |  |  |  |
Proceeds from warrants exercised |  |  |  |  | $ 19,230 | $ 0 |
Debt conversion, converted instrument, shares issued (in shares) |  |  | 472,356 |  |  |  |
Common stock, par value (in dollars per share) |  | $ 0.01 | $ 0.01 |  | $ 0.01 |  | $ 0.01
Equity component of the convertible notes |  |  | $ 2,640 |  | $ 2,661 |  |
Proceeds from private placement |  |  |  |  | 199,750 | $ 0 |
Additional Paid-In Capital |  |  |  |  |  |  |
Collaborative Agreements |  |  |  |  |  |  |
Equity component of the convertible notes |  |  | $ 2,635 |  | $ 2,656 |  |
Common Stock |  |  |  |  |  |  |
Collaborative Agreements |  |  |  |  |  |  |
Stock issued from equity financing (in shares) |  |  | 11,296,660 |  | 11,296,660 |  |
Equity component of the convertible notes |  |  | $ 5 |  | $ 5 |  |
Convertible Senior Notes 2016, Due 2023 | Convertible Notes |  |  |  |  |  |  |
Collaborative Agreements |  |  |  |  |  |  |
Debt conversion, converted instrument, amount |  |  | $ 2,800 |  |  |  |
Stock Exercises at $7.06 |  |  |  |  |  |  |
Collaborative Agreements |  |  |  |  |  |  |
Warrants exercise price (in dollars per share) |  |  |  | $ 7.06 |  |  |
Stock Exercises at $7.98 |  |  |  |  |  |  |
Collaborative Agreements |  |  |  |  |  |  |
Warrants exercise price (in dollars per share) |  |  |  | $ 7.98 |  |  |
Proceeds from warrants exercised |  |  |  | $ 19,200 |  |  |
Private Placement |  |  |  |  |  |  |
Collaborative Agreements |  |  |  |  |  |  |
Warrants exercise price (in dollars per share) |  | $ 0.01 | $ 0.01 |  | $ 0.01 |  |
Number of shares issued, private placement (in shares) | 11,296,660 | 11,296,660 |  |  |  |  |
Stock issued (in dollars per share) | $ 10.18 | $ 10.18 | $ 10.18 |  | $ 10.18 |  |
Number of common shares called by warrants (in shares) | 8,349,705 | 8,349,705 | 8,349,705 |  | 8,349,705 |  |
Proceeds from private placement |  |  |  |  | $ 199,800 |  |
Outstanding warrants, convertible to common stock | Stock Exercises at $7.06 |  |  |  |  |  |  |
Collaborative Agreements |  |  |  |  |  |  |
Stock issued from equity financing (in shares) |  |  |  | 1,260,000 |  |  |
Outstanding warrants, convertible to common stock | Stock Exercises at $7.98 |  |  |  |  |  |  |
Collaborative Agreements |  |  |  |  |  |  |
Stock issued from equity financing (in shares) |  |  |  | 1,294,999 |  |  |
Outstanding warrants, convertible to common stock | Private Placement |  |  |  |  |  |  |
Collaborative Agreements |  |  |  |  |  |  |
Stock issued (in dollars per share) | $ 10.17 | $ 10.17 | $ 10.17 |  | $ 10.17 |  |

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