LHFI and ACL, LHFI - Troubled debt restructurings on financial effect (Details) - Troubled Debt Restructurings [Member]	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Secured by Nonfarm, Nonresidential Properties [Member] | Loans Secured by Real Estate [Member]
Financing Receivable Modifications [Line Items]
Term Extension - Financial Effect				One loan renewed and extended maturity by six months
Secured by 1-4 Family Residential Properties [Member] | Other Loans Secured by Real Estate [Member]
Financing Receivable Modifications [Line Items]
Term Extension - Financial Effect		Extended amortization with term adjusted by weighted-average 2.3 years		Extended amortization with term adjusted by weighted-average 1.8 years
Weighted average amortization period		2 years 3 months 18 days		1 year 9 months 18 days
Other Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member]
Financing Receivable Modifications [Line Items]
Term Extension - Financial Effect	Modified two loans and lines of credit to amortize over 24 month terms	Modified lines of credit to amortize over a twenty-four month term	Modified three loans and lines of credit to amortize over 24 month terms.	Modified lines of credit to amortize over a twenty-four month term
Commercial and Industrial Loans [Member]
Financing Receivable Modifications [Line Items]
Term Extension - Payment Concessions		Six month payment deferrals		Six month payment deferrals
Other Commercial Loans and Leases [Member]
Financing Receivable Modifications [Line Items]
Term Extension - Financial Effect		One loan renewed and extended maturity by seven months		One loan renewed and extended maturity by seven months
Term Extension - Payment Concessions		Six month payment deferrals		Six month payment deferrals
Consumer Loans [Member]
Financing Receivable Modifications [Line Items]
Term Extension - Financial Effect		Bankruptcies extended amortization with term adjusted by weighted average 1.3 years reducing borrower payment		Bankruptcies extended amortization with term adjusted by weighted average 1.3 years reducing borrower payment
Weighted average amortization period		1 year 3 months 18 days		1 year 3 months 18 days