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Stock-Based Compensation - Stock Option Activity (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]      
Outstanding, beginning balance (in shares) 534 208 22
Granted (in shares) 326 186  
Outstanding, ending balance (in shares) 534 208  
Vested and exercisable (In shares) 111    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]      
Weighted average exercise price, beginning balance (in dollars per share) $ 13.38 $ 112.81  
Weighted average exercise price, granted (in dollars per share) 8.00 1.87  
Weighted average exercise price, ending balance (in dollars per share) 10.09 $ 13.38  
Weighted average exercise price, vested and exercisable (in dollars per share) $ 20.39    
Weighted average remaining contractual term, outstanding (in years) 8 years 9 months 7 days    
Weighted average remaining contractual term, vested and exercisable (in years) 8 years 3 days    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Aggregate Intrinsic Value [Roll Forward]      
Aggregate intrinsic value, outstanding $ 681    
Aggregate intrinsic value, vested and exercisable $ 345