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Summary of Significant Accounting Policies - Earnings Per Share (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2021
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Summary of Significant Accounting Policies                              
Net loss                         $ (275,528) $ (32,693) $ (18,332)
Deemed dividend on Series C convertible preferred stock                           (39,492)  
Paid-in-kind dividend on Series C convertible preferred stock                         (8,196) (2,844)  
Net loss attributable to common stockholders $ (262,086) $ (8,526) $ (7,389) $ (5,723) $ (53,866) $ (11,418) $ (5,803) $ (3,943) $ (948) $ (12,469) $ (2,528) $ (2,387) $ (283,724) $ (75,029) $ (18,332)
Weighted average common shares issued and outstanding - basic                         45,927,591 38,582,432 33,394,285
Weighted average common shares issued and outstanding - diluted                         45,927,591 38,582,432 33,394,285
Basic net loss per share                         $ (6.18) $ (1.94) $ (0.55)
Diluted net loss per share                         $ (6.19) $ (1.94) $ (0.55)