Quarterly report pursuant to Section 13 or 15(d)

Leases - Additional Information (Details)

v3.21.2
Leases - Additional Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Office Space and Commercial Property        
Operating Leased Assets [Line Items]        
Lessee, operating lease, description     These leases have terms which range from six months to 17 years, and generally include an option to terminate or renew.  
Lessee, operating lease, option to terminate     The termination option can reduce the lease term for a period of 10 years  
Lessee, operating lease, terminate term     10 years  
Lessee, operating lease, option to extend     The renewal term can extend the lease term for an additional period of three years  
Lessee, operating lease renewal reduction in remaining term     seven to two years  
Lessee, operating lease, renewal term 3 years   3 years  
Operating lease cost for right - of - use assets $ 288 $ 253 $ 568 $ 505
Commercial Property        
Operating Leased Assets [Line Items]        
Sublease Income $ 83   $ 164  
Minimum | Office Space and Commercial Property        
Operating Leased Assets [Line Items]        
Lessee, operating lease, term of contract 6 months   6 months  
Maximum | Office Space and Commercial Property        
Operating Leased Assets [Line Items]        
Lessee, operating lease, term of contract 17 years   17 years