Quarterly report pursuant to Section 13 or 15(d)

Leases - Additional Information (Details)

v3.21.1
Leases - Additional Information (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Office Space and Commercial Property    
Operating Leased Assets [Line Items]    
Lessee, operating lease, description These leases have terms which range from one to 18 years, and generally include one or more options 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 terms can extend the lease term for additional periods ranging from three to five years.  
Operating lease cost for right - of - use assets $ 280 $ 252
Commercial Property    
Operating Leased Assets [Line Items]    
Sublease Income $ 81  
Minimum | Office Space and Commercial Property    
Operating Leased Assets [Line Items]    
Lessee, operating lease, term of contract 1 year  
Lessee, operating lease, renewal term 3 years  
Maximum | Office Space and Commercial Property    
Operating Leased Assets [Line Items]    
Lessee, operating lease, term of contract 18 years  
Lessee, operating lease, renewal term 5 years