Leases - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) branch
Leases [Abstract]
Number of retail branches | branch	3
Remaining lease term except the land lease	5 years
Remaining lease term of land lease	84 years
Future minimum lease payments	$ 26,940
Imputed interest	24,900
Operating lease, liability	$ 2,062
Weighted average remaining lease term (in years)	57 years 8 months 12 days
Weighted average discount rate	7.39%