Loans and Allowance for Credit Losses - Schedule of Collateral Type Concentration of SBA Loans (Details) - Financing Receivable - Collateral Concentration Risk	6 Months Ended	12 Months Ended
	Jun. 30, 2026	Dec. 31, 2025
Concentration Risk [Line Items]
Concentration risk (in percent)	100.00%	100.00%
SBA loans
Concentration Risk [Line Items]
Concentration risk (in percent)	100.00%	100.00%
Lodging \| SBA loans
Concentration Risk [Line Items]
Concentration risk (in percent)	20.50%	19.30%
Gasoline Service Stations \| SBA loans
Concentration Risk [Line Items]
Concentration risk (in percent)	16.50%	13.80%
Eating Places \| SBA loans
Concentration Risk [Line Items]
Concentration risk (in percent)	7.00%	6.80%
Child Day Care Services \| SBA loans
Concentration Risk [Line Items]
Concentration risk (in percent)	4.60%	3.90%
General Freight Trucking, Local \| SBA loans
Concentration Risk [Line Items]
Concentration risk (in percent)	2.70%	3.80%
Grocery Stores \| SBA loans
Concentration Risk [Line Items]
Concentration risk (in percent)	2.70%	2.20%
Car Washes \| SBA loans
Concentration Risk [Line Items]
Concentration risk (in percent)	2.30%	1.70%
Offices of Physicians \| SBA loans
Concentration Risk [Line Items]
Concentration risk (in percent)	2.10%	2.60%
Coin-Operated Laundries and Drycleaners \| SBA loans
Concentration Risk [Line Items]
Concentration risk (in percent)	2.00%	2.10%
Funeral Service & Crematories \| SBA loans
Concentration Risk [Line Items]
Concentration risk (in percent)	0.80%	1.10%
Other \| SBA loans
Concentration Risk [Line Items]
Concentration risk (in percent)	38.80%	42.70%