LHFI and ACL, LHFI - Troubled debt restructurings on financial effect (Details) - Troubled Debt Restructurings [Member]	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 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	Modified one loan to amortize over 24 month term	Extended amortization on loans with term adjusted by weighted-average 10.6 years	Modified one loan to amortize over 24 month term	Extended amortization with term adjusted by weighted-average 3.2 years
Weighted average amortization period		10 years 7 months 6 days		3 years 2 months 12 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 seven lines of credit to amortize over 24 month terms	Modified lines of credit to amortize over 12 month and 24 month terms	Modified three loans and twenty-seven lines to amortize over 24 month terms	Modified lines of credit to amortize over 12 month and 24 month terms
Commercial and Industrial Loans [Member]
Financing Receivable Modifications [Line Items]
Term Extension - Payment Concessions	Thirty-four month principal payment deferral		Thirty-four month principal payment deferral	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
Term Extension - Payment Concessions				Six month payment deferral
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
Weighted average amortization period				1 year 3 months 18 days