$SFNC
SIMMONS FIRST NATIONAL CORP Stock $sfnc

$sfnc Overview Financials Valuation SEC Filings Company Website

2024 Q1 Form 10-K Financial Statement

#000162828024007263 Filed on February 27, 2024

Income Statement

Concept	2024 Q1	2023 Q4	2023
Revenue	$322.6M		$1.210B
YoY Change	15.59%		40.43%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$11.53M	$11.98M	$47.88M
YoY Change	-4.0%	-2.64%	-2.22%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$170.7M		$560.0M
YoY Change	68.55%		287.78%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$45.01M	$19.43M	$200.6M
YoY Change	-19.96%	-79.56%	-34.56%
Income Tax	$6.134M	-$4.473M	$25.55M
% Of Pretax Income	13.63%	-23.02%	12.73%
Net Earnings	$38.87M	$23.91M	$175.1M
YoY Change	-14.74%	-71.29%	-31.73%
Net Earnings / Revenue	12.05%		14.47%
Basic Earnings Per Share	$0.31		$1.39
Diluted Earnings Per Share	$0.31	$0.19	$1.39
COMMON SHARES
Basic Shares Outstanding	125.3M shares	125.2M shares	126.3M shares
Diluted Shares Outstanding	125.7M shares		126.8M shares

Balance Sheet

Concept	2024 Q1	2023 Q4	2023
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$603.3M	$614.1M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$576.5M	$570.7M	$570.7M
YoY Change	2.12%	4.0%	4.0%
Goodwill	$1.320B	$1.320B
YoY Change	0.0%	0.0%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$141.8M	$141.8M	$141.8M
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$27.37B	$27.35B	$27.35B
YoY Change	-0.77%	-0.42%	-0.42%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$283.2M	$267.7M	$267.7M
YoY Change	9.33%	3.81%	3.81%
Accrued Expenses	$72.63M	$68.79M	$68.79M
YoY Change	18.64%	43.76%	43.76%
Deferred Revenue
YoY Change
Short-Term Debt	$58.76M	$67.97M	$67.97M
YoY Change	-58.87%	-57.63%	-57.63%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$342.0M	$335.7M	$335.7M
YoY Change	-14.91%	30.16%	30.16%
LONG-TERM LIABILITIES
Long-Term Debt	$1.238B	$1.339B	$1.339B
YoY Change	217.57%	9.24%	9.24%
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities	$1.238B	$1.339B	$1.339B
YoY Change	217.57%	9.24%	9.24%
TOTAL LIABILITIES
Total Short-Term Liabilities	$342.0M	$335.7M	$335.7M
Total Long-Term Liabilities	$1.238B	$1.339B	$1.339B
Total Liabilities	$23.93B	$23.92B	$23.92B
YoY Change	-1.28%	-1.13%	-1.13%
SHAREHOLDERS EQUITY
Retained Earnings	$1.342B	$1.330B
YoY Change	5.21%	5.9%
Common Stock	$1.254M	$1.252M
YoY Change	-1.49%	-1.42%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$3.439B	$3.426B	$3.426B
YoY Change
Total Liabilities & Shareholders Equity	$27.37B	$27.35B	$27.35B
YoY Change	-0.77%	-0.42%	-0.42%

Cashflow Statement

Concept	2024 Q1	2023 Q4	2023
OPERATING ACTIVITIES
Net Income	$38.87M	$23.91M	$175.1M
YoY Change	-14.74%	-71.29%	-31.73%
Depreciation, Depletion And Amortization	$11.53M	$11.98M	$47.88M
YoY Change	-4.0%	-2.64%	-2.22%
Cash From Operating Activities	$57.59M	$420.6M	$541.0M
YoY Change	-41.68%	338.15%	67.9%
INVESTING ACTIVITIES
Capital Expenditures	$9.848M	$6.486M	$33.09M
YoY Change	-6.12%	-31.81%	-6.19%
Acquisitions
YoY Change
Other Investing Activities	-$29.86M	-$11.81M	-$150.5M
YoY Change	-88.95%	-96.57%	-83.48%
Cash From Investing Activities	-$39.70M	-$18.29M	-$183.6M
YoY Change	-85.85%	-94.83%	-80.6%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-$28.68M	-393.8M	-$425.4M
YoY Change	-218.27%	-251.03%	23.49%
NET CHANGE
Cash From Operating Activities	$57.59M	420.6M	$541.0M
Cash From Investing Activities	-$39.70M	-18.29M	-$183.6M
Cash From Financing Activities	-$28.68M	-393.8M	-$425.4M
Net Change In Cash	-$10.79M	8.470M	-$68.03M
YoY Change	-93.16%	212.32%	-92.98%
FREE CASH FLOW
Cash From Operating Activities	$57.59M	$420.6M	$541.0M
Capital Expenditures	$9.848M	$6.486M	$33.09M
Free Cash Flow	$47.75M	$414.1M	$507.9M
YoY Change	-45.9%	378.84%	77.01%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2023	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	1210161000	usd
CY2023	us-gaap	Interest Expense Deposits InterestExpenseDeposits	472919000	usd
CY2022	us-gaap	Interest Expense Deposits InterestExpenseDeposits	99049000	usd
CY2023	us-gaap	Interest Expense Federal Funds Purchased And Securities Sold Under Agreements To Repurchase InterestExpenseFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	1150000	usd
CY2022	us-gaap	Interest Expense Federal Funds Purchased And Securities Sold Under Agreements To Repurchase InterestExpenseFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	941000	usd
CY2021	us-gaap	Interest Expense Federal Funds Purchased And Securities Sold Under Agreements To Repurchase InterestExpenseFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	579000	usd
CY2023	us-gaap	Interest Expense Other InterestExpenseOther	60517000	usd
CY2022	us-gaap	Interest Expense Other InterestExpenseOther	24934000	usd
CY2021	us-gaap	Interest Expense Other InterestExpenseOther	19495000	usd
CY2022	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	19495000	usd
CY2023	us-gaap	Proceeds From Sale Of Loans Receivable ProceedsFromSaleOfLoansReceivable	69760000	usd
CY2022	us-gaap	Proceeds From Sale Of Loans Receivable ProceedsFromSaleOfLoansReceivable	73746000	usd
CY2023	us-gaap	Proceeds From Payments For In Interest Bearing Deposits In Banks ProceedsFromPaymentsForInInterestBearingDepositsInBanks	695000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-250603000	usd
CY2022	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	59475	shares
CY2022	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	1151000	usd
CY2022	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	4432762	shares
CY2022	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.76
CY2022	us-gaap	Dividends Common Stock DividendsCommonStock	94096000	usd
CY2021	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	18283000	usd
CY2021	us-gaap	Interest Expense InterestExpense	79529000	usd
CY2022	us-gaap	Proceeds From Payments For In Interest Bearing Deposits In Banks ProceedsFromPaymentsForInInterestBearingDepositsInBanks	1087000	usd
CY2021	us-gaap	Proceeds From Payments For In Interest Bearing Deposits In Banks ProceedsFromPaymentsForInInterestBearingDepositsInBanks	292000	usd
CY2023	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	33086000	usd
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	35268000	usd
CY2023	dei	Entity Central Index Key EntityCentralIndexKey	0000090498
CY2023	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2023	dei	Amendment Flag AmendmentFlag	false
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://simmonsbank.com/20231231#PropertyPlantandEquipmentandRightofUseAssetafterAccumulatedDepreciationandAmortization
CY2023Q4	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://simmonsbank.com/20231231#PropertyPlantandEquipmentandRightofUseAssetafterAccumulatedDepreciationandAmortization
CY2023Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent
CY2022Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent
CY2023Q4	us-gaap	Derivative Asset Statement Of Financial Position Extensible Enumeration DerivativeAssetStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#OtherAssets
CY2023Q4	us-gaap	Derivative Liability Statement Of Financial Position Extensible Enumeration DerivativeLiabilityStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#OtherAssets
CY2022Q4	us-gaap	Derivative Asset Statement Of Financial Position Extensible Enumeration DerivativeAssetStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#OtherAssets
CY2022Q4	us-gaap	Derivative Liability Statement Of Financial Position Extensible Enumeration DerivativeLiabilityStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#OtherAssets
CY2023Q4	us-gaap	Investment Type Extensible Enumeration InvestmentTypeExtensibleEnumeration	http://fasb.org/us-gaap/2023#FederalHomeLoanBankCertificatesAndObligationsFHLBMember
CY2022Q4	us-gaap	Investment Type Extensible Enumeration InvestmentTypeExtensibleEnumeration	http://fasb.org/us-gaap/2023#FederalHomeLoanBankCertificatesAndObligationsFHLBMember
CY2023Q4	us-gaap	Investment Type Extensible Enumeration InvestmentTypeExtensibleEnumeration	http://fasb.org/us-gaap/2023#FederalHomeLoanBankCertificatesAndObligationsFHLBMember
CY2022Q4	us-gaap	Investment Type Extensible Enumeration InvestmentTypeExtensibleEnumeration	http://fasb.org/us-gaap/2023#FederalHomeLoanBankCertificatesAndObligationsFHLBMember
CY2023	dei	Document Annual Report DocumentAnnualReport	true
CY2023	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2023	dei	Document Transition Report DocumentTransitionReport	false
CY2023	dei	Entity File Number EntityFileNumber	000-06253
CY2023	dei	Entity Registrant Name EntityRegistrantName	SIMMONS FIRST NATIONAL CORP
CY2023	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	AR
CY2023	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	71-0407808
CY2023	dei	Entity Address Address Line1 EntityAddressAddressLine1	501 Main Street
CY2023	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	71601
CY2023	dei	Entity Address City Or Town EntityAddressCityOrTown	Pine Bluff
CY2023	dei	Entity Address State Or Province EntityAddressStateOrProvince	AR
CY2023	dei	City Area Code CityAreaCode	870
CY2023	dei	Local Phone Number LocalPhoneNumber	541-1000
CY2023	dei	Security12b Title Security12bTitle	Common stock, par value $0.01 per share
CY2023	dei	Trading Symbol TradingSymbol	SFNC
CY2023	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2023	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2023	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2023	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2023	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2023	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2023	dei	Entity Small Business EntitySmallBusiness	false
CY2023	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2023	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2023	dei	Document Fin Stmt Error Correction Flag DocumentFinStmtErrorCorrectionFlag	false
CY2023	dei	Entity Shell Company EntityShellCompany	false
CY2023Q2	dei	Entity Public Float EntityPublicFloat	2125228007	usd
CY2024Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	125327684	shares
CY2023	dei	Auditor Firm AuditorFirmId	686
CY2023	dei	Auditor Name AuditorName	FORVIS, LLP
CY2023	dei	Auditor Location AuditorLocation	Little Rock, Arkansas
CY2023Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	345258000	usd
CY2022Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	200616000	usd
CY2023Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	268834000	usd
CY2022Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	481506000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents And Federal Funds Sold CashCashEquivalentsAndFederalFundsSold	614092000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents And Federal Funds Sold CashCashEquivalentsAndFederalFundsSold	682122000	usd
CY2023Q4	sfnc	Interest Bearing Balances Due From Banks Time InterestBearingBalancesDueFromBanksTime	100000	usd
CY2022Q4	sfnc	Interest Bearing Balances Due From Banks Time InterestBearingBalancesDueFromBanksTime	795000	usd
CY2023Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	3214000	usd
CY2022Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	1388000	usd
CY2023Q4	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	3726288000	usd
CY2022Q4	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	3759706000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	3509709000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	4331413000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	3152153000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	3852854000	usd
CY2023Q4	us-gaap	Debt Securities DebtSecurities	6878441000	usd
CY2022Q4	us-gaap	Debt Securities DebtSecurities	7612560000	usd
CY2023Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	9373000	usd
CY2022Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	3486000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	16845670000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	16142124000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	225231000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	196955000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	16620439000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	15945169000	usd
CY2023Q4	sfnc	Property Plantand Equipmentand Rightof Use Assetafter Accumulated Depreciationand Amortization PropertyPlantandEquipmentandRightofUseAssetafterAccumulatedDepreciationandAmortization	570678000	usd
CY2022Q4	sfnc	Property Plantand Equipmentand Rightof Use Assetafter Accumulated Depreciationand Amortization PropertyPlantandEquipmentandRightofUseAssetafterAccumulatedDepreciationandAmortization	548741000	usd
CY2023Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	4073000	usd
CY2022Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	2887000	usd
CY2023Q4	us-gaap	Interest Receivable InterestReceivable	122430000	usd
CY2022Q4	us-gaap	Interest Receivable InterestReceivable	102892000	usd
CY2023Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	500559000	usd
CY2022Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	491340000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	1320799000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	1319598000	usd
CY2023Q4	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	112645000	usd
CY2022Q4	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	128951000	usd
CY2023Q4	us-gaap	Other Assets OtherAssets	592045000	usd
CY2022Q4	us-gaap	Other Assets OtherAssets	622520000	usd
CY2023Q4	us-gaap	Assets Assets	27345674000	usd
CY2022Q4	us-gaap	Assets Assets	27461061000	usd
CY2023Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	4800880000	usd
CY2022Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	6016651000	usd
CY2023Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	10997425000	usd
CY2022Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	11762885000	usd
CY2023Q4	us-gaap	Time Deposits TimeDeposits	6446673000	usd
CY2022Q4	us-gaap	Time Deposits TimeDeposits	4768558000	usd
CY2023Q4	us-gaap	Deposits Deposits	22244978000	usd
CY2022Q4	us-gaap	Deposits Deposits	22548094000	usd
CY2023Q4	us-gaap	Federal Funds Purchased And Securities Sold Under Agreements To Repurchase FederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	67969000	usd
CY2022Q4	us-gaap	Federal Funds Purchased And Securities Sold Under Agreements To Repurchase FederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	160403000	usd
CY2023Q4	us-gaap	Other Borrowings OtherBorrowings	972366000	usd
CY2022Q4	us-gaap	Other Borrowings OtherBorrowings	859296000	usd
CY2023Q4	us-gaap	Subordinated Debt SubordinatedDebt	366141000	usd
CY2022Q4	us-gaap	Subordinated Debt SubordinatedDebt	365989000	usd
CY2023Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	267732000	usd
CY2022Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	257917000	usd
CY2023Q4	us-gaap	Liabilities Liabilities	23919186000	usd
CY2022Q4	us-gaap	Liabilities Liabilities	24191699000	usd
CY2022Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2023Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	350000000	shares
CY2023Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	350000000	shares
CY2023Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	125184119	shares
CY2023Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	125184119	shares
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	127046654	shares
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	127046654	shares
CY2023Q4	us-gaap	Common Stock Value CommonStockValue	1252000	usd
CY2022Q4	us-gaap	Common Stock Value CommonStockValue	1270000	usd
CY2023Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	2499930000	usd
CY2022Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	2530066000	usd
CY2023Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1329681000	usd
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1255586000	usd
CY2023Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-404375000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-517560000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	3426488000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	3269362000	usd
CY2023Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	27345674000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	27461061000	usd
CY2023	us-gaap	Interest And Fee Income Loans And Leases Held In Portfolio InterestAndFeeIncomeLoansAndLeasesHeldInPortfolio	989196000	usd
CY2022	us-gaap	Interest And Fee Income Loans And Leases Held In Portfolio InterestAndFeeIncomeLoansAndLeasesHeldInPortfolio	694192000	usd
CY2021	us-gaap	Interest And Fee Income Loans And Leases Held In Portfolio InterestAndFeeIncomeLoansAndLeasesHeldInPortfolio	555008000	usd
CY2023	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	13490000	usd
CY2022	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	5500000	usd
CY2021	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	2795000	usd
CY2023	us-gaap	Investment Income Interest InvestmentIncomeInterest	206918000	usd
CY2022	us-gaap	Investment Income Interest InvestmentIncomeInterest	158203000	usd
CY2021	us-gaap	Investment Income Interest InvestmentIncomeInterest	111693000	usd
CY2023	us-gaap	Interest And Fee Income Loans Held For Sale Mortgages InterestAndFeeIncomeLoansHeldForSaleMortgages	557000	usd
CY2022	us-gaap	Interest And Fee Income Loans Held For Sale Mortgages InterestAndFeeIncomeLoansHeldForSaleMortgages	720000	usd
CY2021	us-gaap	Interest And Fee Income Loans Held For Sale Mortgages InterestAndFeeIncomeLoansHeldForSaleMortgages	1565000	usd
CY2023	us-gaap	Interest And Fee Income Other Loans Held For Sale InterestAndFeeIncomeOtherLoansHeldForSale	0	usd
CY2022	us-gaap	Interest And Fee Income Other Loans Held For Sale InterestAndFeeIncomeOtherLoansHeldForSale	3120000	usd
CY2021	us-gaap	Interest And Fee Income Other Loans Held For Sale InterestAndFeeIncomeOtherLoansHeldForSale	0	usd
CY2022	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	861735000	usd
CY2021	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	671061000	usd
CY2021	us-gaap	Interest Expense Deposits InterestExpenseDeposits	41172000	usd
CY2023	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	25449000	usd
CY2022	us-gaap	Interest Expense InterestExpense	144419000	usd
CY2021	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	591532000	usd
CY2023	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	11717000	usd
CY2022	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	11146000	usd
CY2021	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	8902000	usd
CY2023	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	-20609000	usd
CY2022	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	-278000	usd
CY2021	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	15498000	usd
CY2023	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	0	usd
CY2022	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	4074000	usd
CY2021	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	0	usd
CY2023	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	35398000	usd
CY2022	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	27361000	usd
CY2021	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	35273000	usd
CY2023	us-gaap	Noninterest Income NoninterestIncome	155566000	usd
CY2022	us-gaap	Noninterest Income NoninterestIncome	170066000	usd
CY2021	us-gaap	Noninterest Income NoninterestIncome	191815000	usd
CY2023	us-gaap	Labor And Related Expense LaborAndRelatedExpense	286117000	usd
CY2022	us-gaap	Labor And Related Expense LaborAndRelatedExpense	286982000	usd
CY2021	us-gaap	Labor And Related Expense LaborAndRelatedExpense	246335000	usd
CY2023	us-gaap	Occupancy Net OccupancyNet	46741000	usd
CY2022	us-gaap	Occupancy Net OccupancyNet	44321000	usd
CY2021	us-gaap	Occupancy Net OccupancyNet	38797000	usd
CY2023	us-gaap	Equipment Expense EquipmentExpense	20741000	usd
CY2022	us-gaap	Equipment Expense EquipmentExpense	20665000	usd
CY2021	us-gaap	Equipment Expense EquipmentExpense	19890000	usd
CY2023	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	892000	usd
CY2022	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	1003000	usd
CY2021	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	2121000	usd
CY2023	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	29986000	usd
CY2022	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	11608000	usd
CY2021	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	6973000	usd
CY2023	us-gaap	Acquisition Costs AcquisitionCosts	1420000	usd
CY2022	us-gaap	Acquisition Costs AcquisitionCosts	22476000	usd
CY2021	us-gaap	Acquisition Costs AcquisitionCosts	15911000	usd
CY2023	us-gaap	Other Noninterest Expense OtherNoninterestExpense	177164000	usd
CY2022	us-gaap	Other Noninterest Expense OtherNoninterestExpense	179693000	usd
CY2021	us-gaap	Other Noninterest Expense OtherNoninterestExpense	153562000	usd
CY2023	us-gaap	Noninterest Expense NoninterestExpense	563061000	usd
CY2022	us-gaap	Noninterest Expense NoninterestExpense	566748000	usd
CY2021	us-gaap	Noninterest Expense NoninterestExpense	483589000	usd
CY2023	us-gaap	Income Loss Attributable To Parent IncomeLossAttributableToParent	200603000	usd
CY2022	us-gaap	Income Loss Attributable To Parent IncomeLossAttributableToParent	306560000	usd
CY2021	us-gaap	Income Loss Attributable To Parent IncomeLossAttributableToParent	332462000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	25546000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	50148000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	61306000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	175057000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	256412000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	271156000	usd
CY2023	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	0	usd
CY2022	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	0	usd
CY2021	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	47000	usd
CY2023	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	175057000	usd
CY2022	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	256412000	usd
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	271109000	usd
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.39
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.07
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.47
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.38
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.06
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.46
CY2023	us-gaap	Net Income Loss NetIncomeLoss	175057000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	256412000	usd
CY2023	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	108612000	usd
CY2022	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-593010000	usd
CY2021	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-91434000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-20609000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-278000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	15498000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	-1960000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	98374000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	10588000	usd
CY2023	sfnc	Other Comprehensive Income Unrealized Gains On Securities Transferred From Available For Sale To Held To Maturity OtherComprehensiveIncomeUnrealizedGainsOnSecuritiesTransferredFromAvailableForSaleToHeldToMaturity	0	usd
CY2022	sfnc	Other Comprehensive Income Unrealized Gains On Securities Transferred From Available For Sale To Held To Maturity OtherComprehensiveIncomeUnrealizedGainsOnSecuritiesTransferredFromAvailableForSaleToHeldToMaturity	-206682000	usd
CY2021	sfnc	Other Comprehensive Income Unrealized Gains On Securities Transferred From Available For Sale To Held To Maturity OtherComprehensiveIncomeUnrealizedGainsOnSecuritiesTransferredFromAvailableForSaleToHeldToMaturity	1106000	usd
CY2023	sfnc	Other Comprehensive Income Amortization Of Unrealized Gains On Securities Transferred From Available For Sale To Held To Maturity OtherComprehensiveIncomeAmortizationOfUnrealizedGainsOnSecuritiesTransferredFromAvailableForSaleToHeldToMaturity	-25971000	usd
CY2022	sfnc	Other Comprehensive Income Amortization Of Unrealized Gains On Securities Transferred From Available For Sale To Held To Maturity OtherComprehensiveIncomeAmortizationOfUnrealizedGainsOnSecuritiesTransferredFromAvailableForSaleToHeldToMaturity	-14632000	usd
CY2021	sfnc	Other Comprehensive Income Amortization Of Unrealized Gains On Securities Transferred From Available For Sale To Held To Maturity OtherComprehensiveIncomeAmortizationOfUnrealizedGainsOnSecuritiesTransferredFromAvailableForSaleToHeldToMaturity	-104000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	153232000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	-686408000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	-95134000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	40047000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-179393000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-24863000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	113185000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-507015000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-70271000	usd
CY2023	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	288242000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-250603000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	200885000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	175057000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	256412000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	271156000	usd
CY2023	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	47877000	usd
CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	48962000	usd
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	47220000	usd
CY2023	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	42028000	usd
CY2022	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	14074000	usd
CY2021	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	-32704000	usd
CY2023	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	-20609000	usd
CY2022	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	-278000	usd
CY2021	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	15498000	usd
CY2023	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-14982000	usd
CY2022	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	39031000	usd
CY2021	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	52781000	usd
CY2023	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	152000	usd
CY2022	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	313000	usd
CY2021	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	1257000	usd
CY2023	us-gaap	Share Based Compensation ShareBasedCompensation	12189000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	15317000	usd
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	15868000	usd
CY2023	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	0	usd
CY2022	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	0	usd
CY2021	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	591000	usd
CY2023	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	182000	usd
CY2022	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	390000	usd
CY2021	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	932000	usd
CY2023	us-gaap	Gain Loss On Sale Of Mortgage Loans GainLossOnSaleOfMortgageLoans	7379000	usd
CY2022	us-gaap	Gain Loss On Sale Of Mortgage Loans GainLossOnSaleOfMortgageLoans	7945000	usd
CY2021	us-gaap	Gain Loss On Sale Of Mortgage Loans GainLossOnSaleOfMortgageLoans	36434000	usd
CY2023	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	0	usd
CY2022	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	0	usd
CY2021	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	5316000	usd
CY2023	us-gaap	Gain Loss On Sales Of Consumer Loans GainLossOnSalesOfConsumerLoans	0	usd
CY2022	us-gaap	Gain Loss On Sales Of Consumer Loans GainLossOnSalesOfConsumerLoans	282000	usd
CY2021	us-gaap	Gain Loss On Sales Of Consumer Loans GainLossOnSalesOfConsumerLoans	0	usd
CY2023	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	2460000	usd
CY2022	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-14933000	usd
CY2021	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-10937000	usd
CY2023	sfnc	Bank Owned Life Insuranceand Death Benefits Income BankOwnedLifeInsuranceandDeathBenefitsIncome	12905000	usd
CY2022	sfnc	Bank Owned Life Insuranceand Death Benefits Income BankOwnedLifeInsuranceandDeathBenefitsIncome	11164000	usd
CY2021	sfnc	Bank Owned Life Insuranceand Death Benefits Income BankOwnedLifeInsuranceandDeathBenefitsIncome	9477000	usd
CY2023	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	usd
CY2022	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-365000	usd
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	usd
CY2022	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	497815000	usd
CY2021	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	1034716000	usd
CY2023	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	264393000	usd
CY2022	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	538630000	usd
CY2021	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	1190891000	usd
CY2023	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	19538000	usd
CY2022	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	22107000	usd
CY2021	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-4423000	usd
CY2023	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-263969000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	7214000	usd
CY2021	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	33495000	usd
CY2023	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	-3908000	usd
CY2022	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	10417000	usd
CY2021	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	-50620000	usd
CY2023	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	8996000	usd
CY2022	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	8445000	usd
CY2021	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	8592000	usd
CY2023	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	540979000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	322198000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	277780000	usd
CY2023	us-gaap	Payments To Acquire Loans Receivable PaymentsToAcquireLoansReceivable	786775000	usd
CY2022	us-gaap	Payments To Acquire Loans Receivable PaymentsToAcquireLoansReceivable	1900325000	usd
CY2021	us-gaap	Proceeds From Collection Of Loans Receivable ProceedsFromCollectionOfLoansReceivable	2333893000	usd
CY2021	us-gaap	Proceeds From Sale Of Loans Receivable ProceedsFromSaleOfLoansReceivable	28033000	usd
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	47861000	usd
CY2023	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	0	usd
CY2022	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	0	usd
CY2021	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	5621000	usd
CY2023	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	2071000	usd
CY2022	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	4754000	usd
CY2021	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	21983000	usd
CY2023	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	247948000	usd
CY2022	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	0	usd
CY2021	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	342577000	usd
CY2023	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	302802000	usd
CY2022	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	1137923000	usd
CY2021	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	1001669000	usd
CY2023	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	7518000	usd
CY2022	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	261375000	usd
CY2021	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	5266148000	usd
CY2023	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	85192000	usd
CY2022	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	86229000	usd
CY2021	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	15712000	usd
CY2023	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	68368000	usd
CY2022	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	331273000	usd
CY2021	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	708580000	usd
CY2023	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	3686000	usd
CY2022	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	1873000	usd
CY2021	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	3814000	usd
CY2023	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	0	usd
CY2022	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	0	usd
CY2021	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	160000000	usd
CY2023	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0	usd
CY2022	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	276396000	usd
CY2021	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	25425000	usd
CY2023	sfnc	Proceeds From Divestiture Of Businesses Net Of Liabilities ProceedsFromDivestitureOfBusinessesNetOfLiabilities	0	usd
CY2022	sfnc	Proceeds From Divestiture Of Businesses Net Of Liabilities ProceedsFromDivestitureOfBusinessesNetOfLiabilities	0	usd
CY2021	sfnc	Proceeds From Divestiture Of Businesses Net Of Liabilities ProceedsFromDivestitureOfBusinessesNetOfLiabilities	-134166000	usd
CY2023	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-183593000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-946233000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2537736000	usd
CY2023	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	-302747000	usd
CY2022	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	462530000	usd
CY2021	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	847494000	usd
CY2023	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	0	usd
CY2022	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	56189000	usd
CY2021	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	1563000	usd
CY2023	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	0	usd
CY2022	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	0	usd
CY2021	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	47000	usd
CY2023	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	100962000	usd
CY2022	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	94096000	usd
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	78845000	usd
CY2023	us-gaap	Proceeds From Repayments Of Other Debt ProceedsFromRepaymentsOfOtherDebt	113070000	usd
CY2022	us-gaap	Proceeds From Repayments Of Other Debt ProceedsFromRepaymentsOfOtherDebt	-516726000	usd
CY2021	us-gaap	Proceeds From Repayments Of Other Debt ProceedsFromRepaymentsOfOtherDebt	-80254000	usd
CY2023	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	-92434000	usd
CY2022	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	-25000000	usd
CY2021	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	-116562000	usd
CY2023	sfnc	Proceeds From Payments For Issuance Of Shares Share Based Payment Arrangement Including Option Exercised And Canceled ProceedsFromPaymentsForIssuanceOfSharesShareBasedPaymentArrangementIncludingOptionExercisedAndCanceled	-2854000	usd
CY2022	sfnc	Proceeds From Payments For Issuance Of Shares Share Based Payment Arrangement Including Option Exercised And Canceled ProceedsFromPaymentsForIssuanceOfSharesShareBasedPaymentArrangementIncludingOptionExercisedAndCanceled	-5033000	usd
CY2021	sfnc	Proceeds From Payments For Issuance Of Shares Share Based Payment Arrangement Including Option Exercised And Canceled ProceedsFromPaymentsForIssuanceOfSharesShareBasedPaymentArrangementIncludingOptionExercisedAndCanceled	290000	usd
CY2023	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	833000	usd
CY2022	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	1151000	usd
CY2021	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	1170000	usd
CY2023	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	40322000	usd
CY2022	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	111133000	usd
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	132459000	usd
CY2023	us-gaap	Payments For Repurchase Of Redeemable Preferred Stock PaymentsForRepurchaseOfRedeemablePreferredStock	0	usd
CY2022	us-gaap	Payments For Repurchase Of Redeemable Preferred Stock PaymentsForRepurchaseOfRedeemablePreferredStock	0	usd
CY2021	us-gaap	Payments For Repurchase Of Redeemable Preferred Stock PaymentsForRepurchaseOfRedeemablePreferredStock	767000	usd
CY2023	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-425416000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-344496000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	438457000	usd
CY2023	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-68030000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-968531000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-1821499000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	682122000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1650653000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	3472152000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	614092000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	682122000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1650653000	usd
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	2976656000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	200885000	usd
CY2021	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	60697	shares
CY2021	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	1170000	usd
CY2021	us-gaap	Stock Issued During Period Shares Share Based Compensation StockIssuedDuringPeriodSharesShareBasedCompensation	474970	shares
CY2021	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	16158000	usd
CY2021	sfnc	Preferred Stock Retired During Period Value PreferredStockRetiredDuringPeriodValue	767000	usd
CY2021	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	4562469	shares
CY2021	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	132459000	usd
CY2021	us-gaap	Dividends Preferred Stock DividendsPreferredStock	47000	usd
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.72
CY2021	us-gaap	Dividends Common Stock DividendsCommonStock	78845000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	3248841000	usd
CY2022	us-gaap	Stock Issued During Period Shares Share Based Compensation StockIssuedDuringPeriodSharesShareBasedCompensation	429423	shares
CY2022	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	10284000	usd
CY2022	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	111133000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	3269362000	usd
CY2023	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	288242000	usd
CY2023	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	42510	shares
CY2023	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	833000	usd
CY2023	us-gaap	Stock Issued During Period Shares Share Based Compensation StockIssuedDuringPeriodSharesShareBasedCompensation	352004	shares
CY2023	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	9335000	usd
CY2023	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	2257049	shares
CY2023	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	40322000	usd
CY2023	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.80
CY2023	us-gaap	Dividends Common Stock DividendsCommonStock	100962000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	3426488000	usd
CY2023Q4	sfnc	Number Of Financial Centers NumberOfFinancialCenters	234	center
CY2023	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
CY2023	us-gaap	Use Of Estimates UseOfEstimates	<div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Use of Estimates</span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of financial statements in accordance with US GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, income items and expenses and disclosure of contingent assets and liabilities. The estimates and assumptions used in the accompanying consolidated financial statements are based upon management’s evaluation of the relevant facts and circumstances as of the date of the consolidated financial statements and actual results may differ from these estimates. Such estimates include, but are not limited to, the Company’s allowance for credit losses.</span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Material estimates that are particularly susceptible to significant change relate to the determination of the allowance for credit losses, the valuation of acquired loans, valuation of goodwill and subsequent impairment analysis, stock-based compensation plans and income taxes. Management obtains third party valuations to assist in valuing certain aspects of these material estimates, as appropriate, including independent appraisals for significant properties in connection with the determination of the allowance for credit losses and the fair value of acquired loans. Assumptions used in the goodwill impairment analysis involve internally projected forecasts, coupled with market and third-party data. These material estimates could change as a result of the uncertainty in current macroeconomic conditions and other factors that are beyond the Company’s control and could cause actual results to differ materially from those projected.</span></div>
CY2023	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Reclassifications</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Various items within the accompanying consolidated financial statements for previous years have been reclassified to provide more comparative information. These reclassifications were not material to the consolidated financial statements.</span></div>
CY2023	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	175057000	usd
CY2022	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	256412000	usd
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	271109000	usd
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	126338000	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	123958000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	109577000	shares
CY2023	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	438000	shares
CY2022	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	512000	shares
CY2021	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	621000	shares
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	126776000	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	124470000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	110198000	shares
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.39
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.07
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.47
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.38
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.06
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.46
CY2022Q2	us-gaap	Debt Securities Available For Sale Transfer To Held To Maturity Allowance For Credit Loss Expense DebtSecuritiesAvailableForSaleTransferToHeldToMaturityAllowanceForCreditLossExpense	1990000000	usd
CY2021Q3	us-gaap	Debt Securities Available For Sale Transfer To Held To Maturity Allowance For Credit Loss Expense DebtSecuritiesAvailableForSaleTransferToHeldToMaturityAllowanceForCreditLossExpense	500800000	usd
CY2023	sfnc	Debt Securities Held To Maturity Transfer Unrealized Gain DebtSecuritiesHeldToMaturityTransferUnrealizedGain	126400000	usd
CY2023	sfnc	Debt Securities Available For Sale Transfer To Held To Maturity Gain Loss DebtSecuritiesAvailableForSaleTransferToHeldToMaturityGainLoss	0	usd
CY2023Q4	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestBeforeAllowanceForCreditLoss	3729502000	usd
CY2023Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	3214000	usd
CY2023Q4	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	3726288000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	638000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	591556000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	3135370000	usd
CY2022Q4	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestBeforeAllowanceForCreditLoss	3761094000	usd
CY2022Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	1388000	usd
CY2022Q4	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	3759706000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	283000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	696756000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	3063233000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	3509709000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	0	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	230000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	357786000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	3152153000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	4331413000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	0	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	373000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	478932000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	3852854000	usd
CY2023Q4	sfnc	Debt Securities Heldtomaturity Interest Receivable DebtSecuritiesHeldtomaturityInterestReceivable	20600000	usd
CY2023Q4	sfnc	Debt Securities Availableforsale Interest Receivable DebtSecuritiesAvailableforsaleInterestReceivable	24700000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	31862000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	2991000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	3084495000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	354795000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	3116357000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	357786000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	3150000000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	3120000000	usd
CY2023Q4	sfnc	Debt Securities Unrealized Loss Position Quantitative Disclosure Percent DebtSecuritiesUnrealizedLossPositionQuantitativeDisclosurePercent	0.989
CY2022Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	1388000	usd
CY2023	us-gaap	Debt Securities Held To Maturity Credit Loss Expense Reversal DebtSecuritiesHeldToMaturityCreditLossExpenseReversal	1826000	usd
CY2023	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest Allowance For Credit Loss Period Increase Decrease DebtSecuritiesHeldToMaturityExcludingAccruedInterestAllowanceForCreditLossPeriodIncreaseDecrease	0	usd
CY2023Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	3214000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	0	usd
CY2023	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest Transfer To Held To Maturity Allowance For Credit Loss Expense Reversal DebtSecuritiesAvailableForSaleExcludingAccruedInterestTransferToHeldToMaturityAllowanceForCreditLossExpenseReversal	12800000	usd
CY2023	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Securities Sold DebtSecuritiesAvailableForSaleAllowanceForCreditLossSecuritiesSold	2078000	usd
CY2023	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest Allowance For Credit Loss Writeoff DebtSecuritiesAvailableForSaleExcludingAccruedInterestAllowanceForCreditLossWriteoff	7000000	usd
CY2023	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Not To Sell Before Recovery Credit Loss Previously Recorded Expense Reversal DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotToSellBeforeRecoveryCreditLossPreviouslyRecordedExpenseReversal	3722000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	0	usd
CY2021Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	1279000	usd
CY2022	us-gaap	Debt Securities Held To Maturity Credit Loss Expense Reversal DebtSecuritiesHeldToMaturityCreditLossExpenseReversal	0	usd
CY2022	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest Allowance For Credit Loss Period Increase Decrease DebtSecuritiesHeldToMaturityExcludingAccruedInterestAllowanceForCreditLossPeriodIncreaseDecrease	0	usd
CY2022	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Recovery DebtSecuritiesHeldToMaturityAllowanceForCreditLossRecovery	109000	usd
CY2022Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	1388000	usd
CY2023	us-gaap	Debt Securities Available For Sale Transfer To Held To Maturity Allowance For Credit Loss Expense Reversal DebtSecuritiesAvailableForSaleTransferToHeldToMaturityAllowanceForCreditLossExpenseReversal	9100000	usd
CY2022	us-gaap	Debt Securities Available For Sale Transfer To Held To Maturity Allowance For Credit Loss Expense Reversal DebtSecuritiesAvailableForSaleTransferToHeldToMaturityAllowanceForCreditLossExpenseReversal	0	usd
CY2023	us-gaap	Investment Income Interest InvestmentIncomeInterest	206918000	usd
CY2022	us-gaap	Investment Income Interest InvestmentIncomeInterest	158203000	usd
CY2021	us-gaap	Investment Income Interest InvestmentIncomeInterest	111693000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount	1473000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	1412000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	10418000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	10115000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount	9159000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	8877000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	115387000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	114069000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount	387939000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	345785000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	216076000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	190533000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount	2169237000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue	1725082000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	1028920000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	896873000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Debt Maturities Single Maturity Date Amortized Cost Basis HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis	1161694000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Debt Maturities Single Maturity Date Fair Value HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue	1054214000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis	2138652000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate	1940307000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost	256000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	256000	usd
CY2023Q4	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestBeforeAllowanceForCreditLoss	3729502000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	3135370000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	3509709000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	3152153000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Restricted DebtSecuritiesAvailableForSaleRestricted	3320000000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Restricted DebtSecuritiesAvailableForSaleRestricted	3960000000	usd
CY2023	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	20600000	usd
CY2022	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	46000	usd
CY2022	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	324000	usd
CY2021	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	15900000	usd
CY2021	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	422000	usd
CY2022	sfnc	Income Tax Benefit Related To Security Gains Losses Percentage IncomeTaxBenefitRelatedToSecurityGainsLossesPercentage	0.26135
CY2023	sfnc	Income Tax Benefit Related To Security Gains Losses Percentage IncomeTaxBenefitRelatedToSecurityGainsLossesPercentage	0.26135
CY2021	sfnc	Income Tax Benefit Related To Security Gains Losses Percentage IncomeTaxBenefitRelatedToSecurityGainsLossesPercentage	0.26135
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	16850000000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	16140000000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	16845670000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	16142124000	usd
CY2023	us-gaap	Financing Receivable Purchased With Credit Deterioration Discount Premium FinancingReceivablePurchasedWithCreditDeteriorationDiscountPremium	6700000	usd
CY2022	us-gaap	Financing Receivable Purchased With Credit Deterioration Discount Premium FinancingReceivablePurchasedWithCreditDeteriorationDiscountPremium	26400000	usd
CY2023Q4	us-gaap	Financing Receivable Accrued Interest Before Allowance For Credit Loss FinancingReceivableAccruedInterestBeforeAllowanceForCreditLoss	77100000	usd
CY2022Q4	us-gaap	Financing Receivable Accrued Interest Before Allowance For Credit Loss FinancingReceivableAccruedInterestBeforeAllowanceForCreditLoss	65400000	usd
CY2023Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	83325000	usd
CY2022Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	58434000	usd
CY2023Q4	us-gaap	Financing Receivable Nonaccrual No Allowance FinancingReceivableNonaccrualNoAllowance	3200000	usd
CY2022Q4	us-gaap	Financing Receivable Nonaccrual No Allowance FinancingReceivableNonaccrualNoAllowance	16900000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	16845670000	usd
CY2023Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	1147000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	16142124000	usd
CY2022Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	507000	usd
CY2023	sfnc	Financing Receivable Excluding Accrued Interest Modified In Period Rate Reduction FinancingReceivableExcludingAccruedInterestModifiedInPeriodRateReduction	79000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Modified Period FinancingReceivableExcludingAccruedInterestModifiedPeriod	31239000	usd
CY2023	sfnc	Financing Receivable Modifications Number Of Contracts In Payment Default FinancingReceivableModificationsNumberOfContractsInPaymentDefault	0	loan
CY2022	sfnc	Financing Receivable Modifications Number Of Contracts3 FinancingReceivableModificationsNumberOfContracts3	4	loan
CY2022	sfnc	Financing Receivable Troubled Debt Restructuring Premodification3 FinancingReceivableTroubledDebtRestructuringPremodification3	760000	usd
CY2022	sfnc	Financial Impact On Date Of Restructure FinancialImpactOnDateOfRestructure	0	usd
CY2022	sfnc	Financing Receivable Modified Subsequent Default Number Of Contracts FinancingReceivableModifiedSubsequentDefaultNumberOfContracts	1	loan
CY2022	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	7800	usd
CY2023Q4	sfnc	Financing Receivable Collateral Dependent Amount FinancingReceivableCollateralDependentAmount	144600000	usd
CY2022Q4	sfnc	Financing Receivable Collateral Dependent Amount FinancingReceivableCollateralDependentAmount	70900000	usd
CY2023Q4	sfnc	Financing Receivable Collateral Dependent Amount FinancingReceivableCollateralDependentAmount	144604000	usd
CY2022Q4	sfnc	Financing Receivable Collateral Dependent Amount FinancingReceivableCollateralDependentAmount	70926000	usd
CY2023	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	47424000	usd
CY2022	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-5379000	usd
CY2021	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-31209000	usd
CY2023	sfnc	Provision For Unfunded Commitments ProvisionForUnfundedCommitments	-16300000	usd
CY2022	sfnc	Provision For Unfunded Commitments ProvisionForUnfundedCommitments	19453000	usd
CY2021	sfnc	Provision For Unfunded Commitments ProvisionForUnfundedCommitments	0	usd
CY2023	us-gaap	Debt Securities Held To Maturity Credit Loss Expense Reversal DebtSecuritiesHeldToMaturityCreditLossExpenseReversal	1826000	usd
CY2022	us-gaap	Debt Securities Held To Maturity Credit Loss Expense Reversal DebtSecuritiesHeldToMaturityCreditLossExpenseReversal	0	usd
CY2021	us-gaap	Debt Securities Held To Maturity Credit Loss Expense Reversal DebtSecuritiesHeldToMaturityCreditLossExpenseReversal	-1183000	usd
CY2023	sfnc	Debt Securities Available For Sale Credit Loss Expense Reversal DebtSecuritiesAvailableForSaleCreditLossExpenseReversal	9078000	usd
CY2022	sfnc	Debt Securities Available For Sale Credit Loss Expense Reversal DebtSecuritiesAvailableForSaleCreditLossExpenseReversal	0	usd
CY2021	sfnc	Debt Securities Available For Sale Credit Loss Expense Reversal DebtSecuritiesAvailableForSaleCreditLossExpenseReversal	-312000	usd
CY2023	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	42028000	usd
CY2022	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	14074000	usd
CY2021	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	-32704000	usd
CY2023Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	67267000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	46845000	usd
CY2023Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	68788000	usd
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	47850000	usd
CY2023Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P8Y9M21D
CY2022Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P6Y8M8D
CY2023Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0352
CY2022Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0241
CY2023	us-gaap	Operating Lease Expense OperatingLeaseExpense	15700000	usd
CY2022	us-gaap	Operating Lease Expense OperatingLeaseExpense	14200000	usd
CY2021	us-gaap	Operating Lease Expense OperatingLeaseExpense	11500000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	112645000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	128951000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	112645000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	13064000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	11212000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	10147000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	7732000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	6792000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	33044000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	81991000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	13203000	usd
CY2023Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	68788000	usd
CY2023Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	67267000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	46845000	usd
CY2023Q4	sfnc	Property Plantand Equipmentand Rightof Use Asset Accumulated Depreciationand Amortization PropertyPlantandEquipmentandRightofUseAssetAccumulatedDepreciationandAmortization	194874000	usd
CY2022Q4	sfnc	Property Plantand Equipmentand Rightof Use Asset Accumulated Depreciationand Amortization PropertyPlantandEquipmentandRightofUseAssetAccumulatedDepreciationandAmortization	199976000	usd
CY2023Q4	sfnc	Property Plantand Equipmentand Rightof Use Assetafter Accumulated Depreciationand Amortization PropertyPlantandEquipmentandRightofUseAssetafterAccumulatedDepreciationandAmortization	570678000	usd
CY2022Q4	sfnc	Property Plantand Equipmentand Rightof Use Assetafter Accumulated Depreciationand Amortization PropertyPlantandEquipmentandRightofUseAssetafterAccumulatedDepreciationandAmortization	548741000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	1320000000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	1320000000	usd
CY2023	us-gaap	Goodwill Period Increase Decrease GoodwillPeriodIncreaseDecrease	1200000	usd
CY2023	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2022	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2021	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2023Q4	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2023Q3	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2022	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2022Q4	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2022Q3	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2022Q2	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	10937000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	25546000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	50148000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	61306000	usd
CY2023Q4	sfnc	Deferred Tax Assets Loans Acquired DeferredTaxAssetsLoansAcquired	3644000	usd
CY2022Q4	sfnc	Deferred Tax Assets Loans Acquired DeferredTaxAssetsLoansAcquired	5846000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	53445000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	47145000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	128951000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	15403000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	12819000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	12346000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	12218000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	11312000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	48547000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	112645000	usd
CY2023Q4	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	1730000000	usd
CY2022Q4	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	1080000000.00	usd
CY2023Q4	us-gaap	Interest Bearing Domestic Deposit Brokered InterestBearingDomesticDepositBrokered	2900000000	usd
CY2022Q4	us-gaap	Interest Bearing Domestic Deposit Brokered InterestBearingDomesticDepositBrokered	2750000000	usd
CY2023Q4	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	6089586000	usd
CY2023Q4	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	287651000	usd
CY2023Q4	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	56173000	usd
CY2023Q4	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	6705000	usd
CY2023Q4	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	5125000	usd
CY2023Q4	us-gaap	Time Deposit Maturities After Year Five TimeDepositMaturitiesAfterYearFive	1433000	usd
CY2023Q4	us-gaap	Time Deposits TimeDeposits	6446673000	usd
CY2023	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	28006000	usd
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	35215000	usd
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	50369000	usd
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-2460000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	14933000	usd
CY2023Q4	sfnc	Deferred Tax Assets On Foreclosed Assets DeferredTaxAssetsOnForeclosedAssets	480000	usd
CY2022Q4	sfnc	Deferred Tax Assets On Foreclosed Assets DeferredTaxAssetsOnForeclosedAssets	523000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Other Loss Carryforwards DeferredTaxAssetsOtherLossCarryforwards	9643000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Other Loss Carryforwards DeferredTaxAssetsOtherLossCarryforwards	10962000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	3355000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	3867000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Other DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther	8048000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Other DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther	8153000	usd
CY2023Q4	sfnc	Deferred Tax Assets Acquired Securities DeferredTaxAssetsAcquiredSecurities	7569000	usd
CY2022Q4	sfnc	Deferred Tax Assets Acquired Securities DeferredTaxAssetsAcquiredSecurities	7651000	usd
CY2023Q4	sfnc	Deferred Tax Assets Operating Lease Liabilities DeferredTaxAssetsOperatingLeaseLiabilities	16501000	usd
CY2022Q4	sfnc	Deferred Tax Assets Operating Lease Liabilities DeferredTaxAssetsOperatingLeaseLiabilities	11641000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	143624000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	177839000	usd
CY2023Q4	sfnc	Deferred Tax Assets Tax Deferred Expense Reservesand Accruals Unfunded Commitments DeferredTaxAssetsTaxDeferredExpenseReservesandAccrualsUnfundedCommitments	6148000	usd
CY2022Q4	sfnc	Deferred Tax Assets Tax Deferred Expense Reservesand Accruals Unfunded Commitments DeferredTaxAssetsTaxDeferredExpenseReservesandAccrualsUnfundedCommitments	10200000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	7627000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	4173000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	260084000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	288000000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	41174000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	44539000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	24632000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	24288000	usd
CY2023Q4	sfnc	Deferred Tax Liabilities Operating Right Of Use Assets DeferredTaxLiabilitiesOperatingRightOfUseAssets	16136000	usd
CY2022Q4	sfnc	Deferred Tax Liabilities Operating Right Of Use Assets DeferredTaxLiabilitiesOperatingRightOfUseAssets	11396000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	25371000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	25836000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	10995000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	8875000	usd
CY2023Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	118308000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	114934000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	141776000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	173066000	usd
CY2023	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	42127000	usd
CY2022	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	64378000	usd
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	69807000	usd
CY2023	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-983000	usd
CY2022	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	3249000	usd
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	4452000	usd
CY2023	sfnc	Income Tax Rate Reconciliation Discrete Items Related To Share Based Compensation IncomeTaxRateReconciliationDiscreteItemsRelatedToShareBasedCompensation	-596000	usd
CY2022	sfnc	Income Tax Rate Reconciliation Discrete Items Related To Share Based Compensation IncomeTaxRateReconciliationDiscreteItemsRelatedToShareBasedCompensation	74000	usd
CY2021	sfnc	Income Tax Rate Reconciliation Discrete Items Related To Share Based Compensation IncomeTaxRateReconciliationDiscreteItemsRelatedToShareBasedCompensation	17000	usd
CY2023	sfnc	Effective Income Tax Rate Reconciliation Tax Exempt Interest Income EffectiveIncomeTaxRateReconciliationTaxExemptInterestIncome	15357000	usd
CY2022	sfnc	Effective Income Tax Rate Reconciliation Tax Exempt Interest Income EffectiveIncomeTaxRateReconciliationTaxExemptInterestIncome	14484000	usd
CY2021	sfnc	Effective Income Tax Rate Reconciliation Tax Exempt Interest Income EffectiveIncomeTaxRateReconciliationTaxExemptInterestIncome	11510000	usd
CY2023	sfnc	Effective Income Tax Reconciliation Bank Owned Life Insurance EffectiveIncomeTaxReconciliationBankOwnedLifeInsurance	2607000	usd
CY2022	sfnc	Effective Income Tax Reconciliation Bank Owned Life Insurance EffectiveIncomeTaxReconciliationBankOwnedLifeInsurance	1918000	usd
CY2021	sfnc	Effective Income Tax Reconciliation Bank Owned Life Insurance EffectiveIncomeTaxReconciliationBankOwnedLifeInsurance	1212000	usd
CY2023	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	218000	usd
CY2022	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	1708000	usd
CY2021	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	2260000	usd
CY2023	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	1988000	usd
CY2022	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	705000	usd
CY2021	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	2046000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	25546000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	50148000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	61306000	usd
CY2023	sfnc	Number Of Tax Free Reorganization Transactions NumberOfTaxFreeReorganizationTransactions	4	tax-freereorganization
CY2023Q4	us-gaap	Financial Assets Sold Under Agreements To Repurchase Gross Including Not Subject To Master Netting Arrangement FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	67600000	usd
CY2022Q4	us-gaap	Financial Assets Sold Under Agreements To Repurchase Gross Including Not Subject To Master Netting Arrangement FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	152400000	usd
CY2023	us-gaap	Schedule Of Repurchase Agreements ScheduleOfRepurchaseAgreements	The remaining contractual maturity of the securities sold under agreements to repurchase in the consolidated balance sheets as of December 31, 2023 and 2022 is presented in the following tables. <div style="margin-bottom:1pt;text-align:justify"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:30.652%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:11.974%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.518%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:11.974%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.518%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:11.974%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.518%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:11.974%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.518%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:11.980%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td colspan="27" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Remaining Contractual Maturity of the Agreements</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(In thousands)</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Overnight and<br/>Continuous</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Up to 30 Days</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">30-90 Days</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Greater than<br/>90 Days</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total</span></td></tr><tr><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline">December 31, 2023</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Repurchase agreements:</span></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 13pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">U.S. Government agencies</span></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">67,569 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">— </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">— </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">— </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">67,569 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr style="height:14pt"><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000000;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000000;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000000;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000000;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000000;padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline">December 31, 2022</span></td><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Repurchase agreements:</span></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 13pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">U.S. Government agencies</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">152,403 </span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">— </span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">— </span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">— </span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">152,403 </span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr></table></div>
CY2023Q4	us-gaap	Long Term Debt LongTermDebt	1338507000	usd
CY2022Q4	us-gaap	Long Term Debt LongTermDebt	1225285000	usd
CY2023Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	953200000	usd
CY2022Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	838500000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Collateral Pledged1 FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged1	6940000000	usd
CY2023Q4	sfnc	Advances From Federal Home Loan Bank Available AdvancesFromFederalHomeLoanBankAvailable	5400000000	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	1822000	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	1822000	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	1824000	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	1920000	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	332210000	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	48909000	usd
CY2023Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	388507000	usd
CY2009Q1	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	40040000	shares
CY2009Q1	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2022Q2	us-gaap	Preferred Stock Liquidation Preference Value PreferredStockLiquidationPreferenceValue	80000000	usd
CY2023	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent Of Match DefinedContributionPlanEmployerMatchingContributionPercentOfMatch	1
CY2023	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.03
CY2023	sfnc	Defined Contribution Plan Employer Matching Contribution Percentof Match Next Two Percent Of Compensation DefinedContributionPlanEmployerMatchingContributionPercentofMatchNextTwoPercentOfCompensation	0.50
CY2023	sfnc	Defined Contribution Plan Employer Matching Contribution Percentof Employees Gross Pay Next Two Percentof Compensation DefinedContributionPlanEmployerMatchingContributionPercentofEmployeesGrossPayNextTwoPercentofCompensation	0.02
CY2023	sfnc	Defined Contribution Plan Employer Matching Contribution Percentof Match Total DefinedContributionPlanEmployerMatchingContributionPercentofMatchTotal	0.04
CY2023	sfnc	Defined Contribution Plan Employer Matching Contribution Percentof Employees Gross Pay Total DefinedContributionPlanEmployerMatchingContributionPercentofEmployeesGrossPayTotal	0.05
CY2023	us-gaap	Employee Stock Ownership Plan Esop Compensation Expense EmployeeStockOwnershipPlanESOPCompensationExpense	11900000	usd
CY2022	us-gaap	Employee Stock Ownership Plan Esop Compensation Expense EmployeeStockOwnershipPlanESOPCompensationExpense	13000000	usd
CY2021	us-gaap	Employee Stock Ownership Plan Esop Compensation Expense EmployeeStockOwnershipPlanESOPCompensationExpense	13900000	usd
CY2023	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	316000	usd
CY2022	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	2200000	usd
CY2021	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	2700000	usd
CY2023	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Purchase Price Of Common Stock Percent SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent	0.95
CY2023	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Purchase Price Of Common Stock Percent SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent	0.95
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	658000	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	22.48
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CY2023	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	900	shares
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CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	22.42
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CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	0
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CY2022	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0
CY2022	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	3000	shares
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CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	0
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	470000	shares
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	22.56
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CY2023	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	1000	shares
CY2023	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	10.65
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	22000	shares
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	22.87
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	447000	shares
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	22.56
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	447000	shares
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	22.56
CY2023	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Lower Range Limit ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit	20.29
CY2023	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Upper Range Limit ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit	24.07
CY2023Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Outstanding Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions	447000	shares
CY2023	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2	P1Y5M12D
CY2023Q4	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Exercise Price Beginning Balance1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1	22.56
CY2023Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions	447000	shares
CY2023Q4	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Exercise Price1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1	22.56
CY2023	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	12200000	usd
CY2022	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	15300000	usd
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	15900000	usd
CY2023Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Stock Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions	0	usd
CY2023Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Share Based Awards Other Than Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions	14500000	usd
CY2023	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y4M24D
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	8000	usd
CY2022	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	2750	shares
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	0	usd
CY2021	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	184888	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	1300000	usd
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2023	us-gaap	Interest Paid Net InterestPaidNet	540816000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	134980000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	82914000	usd
CY2023	us-gaap	Income Taxes Paid IncomeTaxesPaid	20948000	usd
CY2022	us-gaap	Income Taxes Paid IncomeTaxesPaid	25084000	usd
CY2021	us-gaap	Income Taxes Paid IncomeTaxesPaid	55202000	usd
CY2023	us-gaap	Transfer Of Other Real Estate TransferOfOtherRealEstate	0	usd
CY2022	us-gaap	Transfer Of Other Real Estate TransferOfOtherRealEstate	0	usd
CY2021	us-gaap	Transfer Of Other Real Estate TransferOfOtherRealEstate	4368000	usd
CY2023	sfnc	Transfers Of Premises Held For Sale To Premises TransfersOfPremisesHeldForSaleToPremises	0	usd
CY2022	sfnc	Transfers Of Premises Held For Sale To Premises TransfersOfPremisesHeldForSaleToPremises	0	usd
CY2021	sfnc	Transfers Of Premises Held For Sale To Premises TransfersOfPremisesHeldForSaleToPremises	5610000	usd
CY2023	sfnc	Transfers Of Available For Sale To Held To Maturity Securities TransfersOfAvailableForSaleToHeldToMaturitySecurities	0	usd
CY2022	sfnc	Transfers Of Available For Sale To Held To Maturity Securities TransfersOfAvailableForSaleToHeldToMaturitySecurities	1992542000	usd
CY2021	sfnc	Transfers Of Available For Sale To Held To Maturity Securities TransfersOfAvailableForSaleToHeldToMaturitySecurities	500809000	usd
CY2023	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	35400000	usd
CY2022	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	27400000	usd
CY2023	sfnc	Noninterest Income Other Operating Income Legal Reserve Recapture NoninterestIncomeOtherOperatingIncomeLegalReserveRecapture	4000000	usd
CY2021	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	35300000	usd
CY2021	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	5300000	usd
CY2023	us-gaap	Professional Fees ProfessionalFees	19612000	usd
CY2022	us-gaap	Professional Fees ProfessionalFees	19138000	usd
CY2021	us-gaap	Professional Fees ProfessionalFees	18921000	usd
CY2023	us-gaap	Postage Expense PostageExpense	9458000	usd
CY2022	us-gaap	Postage Expense PostageExpense	8955000	usd
CY2021	us-gaap	Postage Expense PostageExpense	8276000	usd
CY2023	us-gaap	Communication Communication	6965000	usd
CY2022	us-gaap	Communication Communication	6394000	usd
CY2021	us-gaap	Communication Communication	6234000	usd
CY2023	sfnc	Credit Card Expense CreditCardExpense	13243000	usd
CY2022	sfnc	Credit Card Expense CreditCardExpense	12243000	usd
CY2021	sfnc	Credit Card Expense CreditCardExpense	11112000	usd
CY2023	us-gaap	Marketing Expense MarketingExpense	24008000	usd
CY2022	us-gaap	Marketing Expense MarketingExpense	28870000	usd
CY2021	us-gaap	Marketing Expense MarketingExpense	22234000	usd
CY2023	sfnc	Softwareand Technology Expense SoftwareandTechnologyExpense	42530000	usd
CY2022	sfnc	Softwareand Technology Expense SoftwareandTechnologyExpense	40906000	usd
CY2021	sfnc	Softwareand Technology Expense SoftwareandTechnologyExpense	40608000	usd
CY2023	us-gaap	Supplies Expense SuppliesExpense	2591000	usd
CY2022	us-gaap	Supplies Expense SuppliesExpense	2556000	usd
CY2021	us-gaap	Supplies Expense SuppliesExpense	2766000	usd
CY2023	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	16306000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	15915000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	13494000	usd
CY2023	sfnc	Branch Right Sizing Expense BranchRightSizingExpense	5467000	usd
CY2022	sfnc	Branch Right Sizing Expense BranchRightSizingExpense	3475000	usd
CY2021	sfnc	Branch Right Sizing Expense BranchRightSizingExpense	-537000	usd
CY2023	us-gaap	Other General Expense OtherGeneralExpense	36984000	usd
CY2022	us-gaap	Other General Expense OtherGeneralExpense	41241000	usd
CY2021	us-gaap	Other General Expense OtherGeneralExpense	30454000	usd
CY2023	us-gaap	Other Noninterest Expense OtherNoninterestExpense	177164000	usd
CY2022	us-gaap	Other Noninterest Expense OtherNoninterestExpense	179693000	usd
CY2021	us-gaap	Other Noninterest Expense OtherNoninterestExpense	153562000	usd
CY2023Q4	sfnc	Commitments To Originate Mortgage Loans Term CommitmentsToOriginateMortgageLoansTerm	P30D
CY2023Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	580800000	usd
CY2022Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	265700000	usd
CY2023	sfnc	Letters Of Credit Term LettersOfCreditTerm	P1Y
CY2022	sfnc	Letters Of Credit Term LettersOfCreditTerm	P1Y
CY2023Q4	sfnc	Derivative Instrument Covenant Maximum Outstanding Notional Contract Amount Percent Of Assets DerivativeInstrumentCovenantMaximumOutstandingNotionalContractAmountPercentOfAssets	0.10
CY2022	sfnc	Hedged Asset Statement Of Financial Position Extensible Enumeration Not Disclosed Flag HedgedAssetStatementOfFinancialPositionExtensibleEnumerationNotDisclosedFlag	Investment securities - Available-for-sale
CY2023	sfnc	Hedged Asset Statement Of Financial Position Extensible Enumeration Not Disclosed Flag HedgedAssetStatementOfFinancialPositionExtensibleEnumerationNotDisclosedFlag	Investment securities - Available-for-sale
CY2023Q4	us-gaap	Hedged Asset Fair Value Hedge HedgedAssetFairValueHedge	940010000	usd
CY2022Q4	us-gaap	Hedged Asset Fair Value Hedge HedgedAssetFairValueHedge	944115000	usd
CY2023Q4	us-gaap	Hedged Asset Fair Value Hedge Cumulative Increase Decrease HedgedAssetFairValueHedgeCumulativeIncreaseDecrease	104408000	usd
CY2022Q4	us-gaap	Hedged Asset Fair Value Hedge Cumulative Increase Decrease HedgedAssetFairValueHedgeCumulativeIncreaseDecrease	106321000	usd
CY2023	sfnc	Threshold Percentage Of Net Profits Exceeded By Dividends Declared Any Calendar Year ThresholdPercentageOfNetProfitsExceededByDividendsDeclaredAnyCalendarYear	0.75
CY2023	sfnc	Threshold Percentage Of Net Profits Exceeded By Dividends Declared Combined With Preceding Year ThresholdPercentageOfNetProfitsExceededByDividendsDeclaredCombinedWithPrecedingYear	0.75
CY2023Q4	us-gaap	Statutory Accounting Practices Statutory Amount Available For Dividend Payments Without Regulatory Approval StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPaymentsWithoutRegulatoryApproval	54400000	usd
CY2023Q4	us-gaap	Tier One Leverage Capital Required To Be Well Capitalized To Average Assets TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets	0.05
CY2023Q4	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.08
CY2023Q4	us-gaap	Capital Required To Be Well Capitalized To Risk Weighted Assets CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.10
CY2023Q4	sfnc	Common Equity Tier1 Ratio Required To Be Well Capitalized CommonEquityTier1RatioRequiredToBeWellCapitalized	0.065
CY2023Q4	sfnc	Capital Conservation Buffer CapitalConservationBuffer	0.025
CY2023	us-gaap	Net Income Loss NetIncomeLoss	175057000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	256412000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	271156000	usd
CY2023Q4	ecd	Non Rule10b51 Arr Adopted Flag NonRule10b51ArrAdoptedFlag	false
CY2023Q4	ecd	Rule10b51 Arr Adopted Flag Rule10b51ArrAdoptedFlag	false
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CY2023Q4	ecd	Non Rule10b51 Arr Trmntd Flag NonRule10b51ArrTrmntdFlag	false

Files In Submission

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$SFNC
SIMMONS FIRST NATIONAL CORP Stock $sfnc

2024 Q1 Form 10-K Financial Statement

#000162828024007263 Filed on February 27, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SFNC SIMMONS FIRST NATIONAL CORP Stock $sfnc

2024 Q1 Form 10-K Financial Statement

#000162828024007263 Filed on February 27, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SFNC
SIMMONS FIRST NATIONAL CORP Stock $sfnc