Loans - Financing Receivables, Modified Loans Past Due in Excess of 90 Days or on Non-Accrual Status at Period-End (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Loan Modifications Past Due in Excess of 90 days or on Non-Accrual Status at Period-End	$ 0	$ 306
Financing Receivable, Loan Modifications Charge-Offs During the Period	0	371
Combination: Payment Delay and Term Extention
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Loan Modifications Past Due in Excess of 90 days or on Non-Accrual Status at Period-End	0	266
Financing Receivable, Loan Modifications Charge-Offs During the Period	0	352
Commercial Real Estate Buildings Land And Other Loans [Member] | Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Loan Modifications Past Due in Excess of 90 days or on Non-Accrual Status at Period-End	0	306
Financing Receivable, Loan Modifications Charge-Offs During the Period	0	0
Commercial Real Estate Buildings Land And Other Loans [Member] | Combination: Payment Delay and Term Extention
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Loan Modifications Past Due in Excess of 90 days or on Non-Accrual Status at Period-End	0	266
Financing Receivable, Loan Modifications Charge-Offs During the Period	0	352
Commercial and Industrial Total Energy Loans [Member] | Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Loan Modifications Charge-Offs During the Period	0	371
Commercial and Industrial Total Energy Loans [Member] | Combination: Payment Delay and Term Extention
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Loan Modifications Charge-Offs During the Period	$ 0	$ 0