Quarterly report pursuant to Section 13 or 15(d)

Stock-based Compensation - Summary of Stock Option Activity (Details)

v3.22.2
Stock-based Compensation - Summary of Stock Option Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]    
Options Outstanding 144,303  
Options exercised (707)  
Options forfeited (23,171)  
Options expired (13,781)  
Options Outstanding 106,644 144,303
Options exercisable at September 30, 2021 69,082  
Outstanding, Weighted average exercise price per share $ 36.37  
Options exercised, Weighted average exercise price per share 7.50  
Options forfeited, Weighted average exercise price per share 27.55  
Options expired, Weighted average exercise price per share 32.29  
Outstanding, Weighted average exercise price per share 39.00 $ 36.37
Exercisable at September 30, 2021, Weighted average exercise price per share $ 42.34  
Outstanding, Weighted average remaining contractual life (in years) 6 years 4 months 6 days 7 years 9 months 25 days
Exercisable at September 30, 2021, Weighted average remaining contractual life (in years) 5 years 4 months 9 days  
Outstanding, Aggregate Intrinsic Value $ 9 $ 24
Exercisable at September 30, 2021, Aggregate Intrinsic Value $ 9