Quarterly report pursuant to Section 13 or 15(d)

Restricted Cash - Additional Information (Details)

v3.21.2
Restricted Cash - Additional Information (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Sep. 30, 2020
Dec. 31, 2019
Restricted Cash        
Long term restricted cash $ 3,086 $ 3,086 $ 3,086 $ 3,086
Operating Lease, January 2019        
Restricted Cash        
Letter of credit outstanding $ 3,100      
Letter of credit expiration period 95 days      
Operating Lease, October 2023        
Restricted Cash        
Expected letter of credit amount $ 2,100