Quarterly report pursuant to Section 13 or 15(d)

Stock Based Compensation - Summary of Outstanding Stock Option Activity (Details)

v3.22.1
Stock Based Compensation - Summary of Outstanding Stock Option Activity (Details) - $ / shares
shares in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2022
Dec. 31, 2021
Share-based Payment Arrangement [Abstract]    
Number of stock options, Beginning balance 2,000  
Number of stock options, Granted 282  
Number of stock options, Exercised (1)  
Number of stock options, Expired/Forfeited (106)  
Number of stock options, Ending balance 2,175 2,000
Number of stock options, Vested and exercisable 1,298  
Number of stock options, Vested and expected to vest 2,175  
Weighted average exercise price, Beginning balance $ 12.79  
Weighted average exercise price, Granted 9.28  
Weighted average exercise price, Exercised 1.90  
Weighted average exercise price, Expired/Forfeited 14.66  
Weighted average exercise price, Ending balance 12.25 $ 12.79
Weighted average exercise price, Vested and exercisable 10.92  
Weighted average exercise price, Vested and expected to vest $ 12.25  
Weighted average remaining contractual term (in years) 7 years 1 month 6 days 7 years 3 months 18 days
Weighted average remaining contractual term (in years), Vested and exercisable 5 years 10 months 24 days  
Weighted average remaining contractual term (in years), Vested and expected to vest 7 years 1 month 6 days