Loans and Allowance for Credit Losses on Loans - Collateral Dependent Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Total	$ 1,716,197	$ 1,678,292
Collateralized Mortgage-Backed Securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Total	6,667
Collateralized Mortgage-Backed Securities | Loans Insured or Guaranteed by non-US Government Authorities
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Total	3,600
SBA—real estate
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Total	224,476	221,340
SBA—real estate | Collateralized Mortgage-Backed Securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Total	4,362
Home mortgage
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Total	516,226	$ 482,949
Home mortgage | Collateralized Mortgage-Backed Securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Total	2,305
Hotel / Motel | Collateralized Mortgage-Backed Securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Total	424
Hotel / Motel | SBA—real estate | Collateralized Mortgage-Backed Securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Total	424
Hotel / Motel | Home mortgage | Collateralized Mortgage-Backed Securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Total	0
Gas Station | Collateralized Mortgage-Backed Securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Total	3,938
Gas Station | SBA—real estate | Collateralized Mortgage-Backed Securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Total	3,938
Gas Station | Home mortgage | Collateralized Mortgage-Backed Securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Total	0
Single-Family Residential | Collateralized Mortgage-Backed Securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Total	2,305
Single-Family Residential | SBA—real estate | Collateralized Mortgage-Backed Securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Total	0
Single-Family Residential | Home mortgage | Collateralized Mortgage-Backed Securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Total	$ 2,305