$LKFN
LAKELAND FINANCIAL CORP Stock $lkfn

$lkfn Overview Financials Valuation SEC Filings Company Website

2024 Q1 Form 10-K Financial Statement

#000072199424000013 Filed on February 21, 2024

Income Statement

Concept	2024 Q1	2023 Q4	2023
Revenue	$91.03M	$90.94M	$343.3M
YoY Change	14.91%	20.69%	43.29%
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	$1.534M	$1.573M	$6.173M
YoY Change	-0.26%	3.08%	2.54%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense		$42.34M	$146.2M
YoY Change		128.68%	298.67%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$27.80M	$36.06M	$110.3M
YoY Change	-0.88%	16.46%	-11.85%
Income Tax	$4.402M	$6.436M	$16.57M
% Of Pretax Income	15.83%	17.85%	15.01%
Net Earnings	$23.40M	$29.63M	$93.77M
YoY Change	-3.61%	14.05%	-9.68%
Net Earnings / Revenue	25.71%	32.58%	27.32%
Basic Earnings Per Share	$0.91	$1.16	$3.67
Diluted Earnings Per Share	$0.91	$1.15	$3.65
COMMON SHARES
Basic Shares Outstanding	25.51M shares	25.43M shares	25.60M shares
Diluted Shares Outstanding	25.75M shares		25.72M shares

Balance Sheet

Concept	2024 Q1	2023 Q4	2023
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$147.7M	$151.8M
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	$57.89M	$57.90M	$57.90M
YoY Change	-1.39%	-0.34%	-0.34%
Goodwill	$4.970M	$4.970M
YoY Change	0.0%	0.0%
Intangibles
YoY Change
Long-Term Investments		$13.00M
YoY Change		6.56%
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$6.567B	$6.524B	$6.524B
YoY Change	2.42%	1.42%	1.42%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$14.52M	$20.89M	$20.89M
YoY Change	167.72%	555.78%	555.78%
Accrued Expenses	$4.542M	$4.695M	$4.695M
YoY Change	-11.79%	-11.35%	-11.35%
Deferred Revenue
YoY Change
Short-Term Debt		$0.00	$0.00
YoY Change		-100.0%	-100.0%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$14.52M	$20.89M	$20.89M
YoY Change	37.36%	555.78%	555.78%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00	$0.00
YoY Change
Other Long-Term Liabilities	$87.24M	$82.82M	$82.82M
YoY Change	7.41%	-19.34%	-19.34%
Total Long-Term Liabilities	$87.24M	$82.82M	$82.82M
YoY Change	7.41%	-19.34%	-19.34%
TOTAL LIABILITIES
Total Short-Term Liabilities	$14.52M	$20.89M	$20.89M
Total Long-Term Liabilities	$87.24M	$82.82M	$82.82M
Total Liabilities	$5.920B	$5.874B	$5.874B
YoY Change	1.9%	0.18%	0.18%
SHAREHOLDERS EQUITY
Retained Earnings	$703.3M	$692.8M
YoY Change	6.79%	7.22%
Common Stock	$125.9M	$127.7M
YoY Change	0.03%	0.54%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$646.9M	$649.7M	$649.7M
YoY Change
Total Liabilities & Shareholders Equity	$6.567B	$6.524B	$6.524B
YoY Change	2.42%	1.42%	1.42%

Cashflow Statement

Concept	2024 Q1	2023 Q4	2023
OPERATING ACTIVITIES
Net Income	$23.40M	$29.63M	$93.77M
YoY Change	-3.61%	14.05%	-9.68%
Depreciation, Depletion And Amortization	$1.534M	$1.573M	$6.173M
YoY Change	-0.26%	3.08%	2.54%
Cash From Operating Activities	$24.79M	$26.48M	$114.0M
YoY Change	-9.65%	-23.23%	-32.69%
INVESTING ACTIVITIES
Capital Expenditures	$1.541M	$991.0K	$5.991M
YoY Change	-28.49%	-13.3%	24.27%
Acquisitions
YoY Change
Other Investing Activities	-$60.32M	-$31.54M	-$48.94M
YoY Change	-214.86%	-83.49%	-92.13%
Cash From Investing Activities	-$61.86M	-$32.53M	-$54.93M
YoY Change	-222.83%	-83.07%	-91.23%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	$32.93M	11.59M	-$37.51M
YoY Change	-160.35%	-86.07%	-60.84%
NET CHANGE
Cash From Operating Activities	$24.79M	26.48M	$114.0M
Cash From Investing Activities	-$61.86M	-32.53M	-$54.93M
Cash From Financing Activities	$32.93M	11.59M	-$37.51M
Net Change In Cash	-$4.137M	5.542M	$21.54M
YoY Change	-117.8%	-107.44%	-103.9%
FREE CASH FLOW
Cash From Operating Activities	$24.79M	$26.48M	$114.0M
Capital Expenditures	$1.541M	$991.0K	$5.991M
Free Cash Flow	$23.25M	$25.49M	$108.0M
YoY Change	-8.05%	-23.57%	-34.36%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2023	dei	Entity File Number EntityFileNumber	0-11487
CY2021	lkfn	Fees And Commissions Loan And Service Fees FeesAndCommissionsLoanAndServiceFees	11922000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	72606000	usd
CY2022Q4	us-gaap	Financing Receivable Deferred Income FinancingReceivableDeferredIncome	3069000	usd
CY2023	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	9080000	usd
CY2022	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	8636000	usd
CY2021	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	8750000	usd
CY2022	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	2318000	usd
CY2021	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	1975000	usd
CY2022	lkfn	Fees And Commissions Depositors Accounts FeesAndCommissionsDepositorsAccounts	11595000	usd
CY2023	dei	Entity Central Index Key EntityCentralIndexKey	0000721994
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	Financing Receivable Accrued Interest After Allowance For Credit Loss Statement Of Financial Position Extensible List FinancingReceivableAccruedInterestAfterAllowanceForCreditLossStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#InterestReceivable
CY2023Q4	us-gaap	Financing Receivable Accrued Interest After Allowance For Credit Loss Statement Of Financial Position Extensible List FinancingReceivableAccruedInterestAfterAllowanceForCreditLossStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#InterestReceivable
CY2023	us-gaap	Contractually Specified Servicing Fee Income Statement Of Income Or Comprehensive Income Extensible Enumeration ContractuallySpecifiedServicingFeeIncomeStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration	http://www.lakeland.com/20231231#MortgageBankingIncomeLoss
CY2022	us-gaap	Contractually Specified Servicing Fee Income Statement Of Income Or Comprehensive Income Extensible Enumeration ContractuallySpecifiedServicingFeeIncomeStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration	http://www.lakeland.com/20231231#MortgageBankingIncomeLoss
CY2021	us-gaap	Contractually Specified Servicing Fee Income Statement Of Income Or Comprehensive Income Extensible Enumeration ContractuallySpecifiedServicingFeeIncomeStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration	http://www.lakeland.com/20231231#MortgageBankingIncomeLoss
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#OtherLiabilities
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#OtherLiabilities
CY2023Q4	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherLiabilities
CY2023Q4	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherAssets
CY2023	dei	Document Annual Report DocumentAnnualReport	true
CY2023	dei	Document Period End Date DocumentPeriodEndDate	2023-12-31
CY2023	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2023	dei	Document Transition Report DocumentTransitionReport	false
CY2023	dei	Entity Registrant Name EntityRegistrantName	LAKELAND FINANCIAL CORPORATION
CY2023	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	IN
CY2023	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	35-1559596
CY2023	dei	Entity Address Address Line1 EntityAddressAddressLine1	202 East Center Street
CY2023	dei	Entity Address Address Line2 EntityAddressAddressLine2	P.O. Box 1387
CY2023	dei	Entity Address City Or Town EntityAddressCityOrTown	Warsaw
CY2023	dei	Entity Address State Or Province EntityAddressStateOrProvince	IN
CY2023	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	46581
CY2023	dei	City Area Code CityAreaCode	574
CY2023	dei	Local Phone Number LocalPhoneNumber	267-6144
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	1189039708	usd
CY2024Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	25505987	shares
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CY2023Q4	ecd	Rule10b51 Arr Adopted Flag Rule10b51ArrAdoptedFlag	false
CY2023Q4	ecd	Non Rule10b51 Arr Trmntd Flag NonRule10b51ArrTrmntdFlag	false
CY2023Q4	ecd	Rule10b51 Arr Trmntd Flag Rule10b51ArrTrmntdFlag	false
CY2023	dei	Auditor Location AuditorLocation	South Bend, Indiana
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CY2023Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	81373000	usd
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CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	130282000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	1051728000	usd
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CY2023Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	119215000	usd
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CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	71972000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	72606000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	4844562000	usd
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CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	57899000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	58097000	usd
CY2023Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	109114000	usd
CY2022Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	108407000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Stock And Federal Reserve Bank Stock FederalHomeLoanBankStockAndFederalReserveBankStock	21420000	usd
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CY2022Q4	us-gaap	Goodwill Goodwill	4970000	usd
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CY2022	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	193512000	usd
CY2021	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	177011000	usd
CY2023	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	1815000	usd
CY2021	lkfn	Fees And Commissions Depositors Accounts FeesAndCommissionsDepositorsAccounts	10608000	usd
CY2023	lkfn	Fees And Commissions Credit Card FeesAndCommissionsCreditCard	3651000	usd
CY2021	lkfn	Fees And Commissions Credit Card FeesAndCommissionsCreditCard	3023000	usd
CY2023	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	3133000	usd
CY2022	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	432000	usd
CY2021	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	2467000	usd
CY2023	lkfn	Mortgage Banking Income Loss MortgageBankingIncomeLoss	-254000	usd
CY2022	lkfn	Mortgage Banking Income Loss MortgageBankingIncomeLoss	633000	usd
CY2021	lkfn	Mortgage Banking Income Loss MortgageBankingIncomeLoss	1418000	usd
CY2023	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	-25000	usd
CY2022	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	21000	usd
CY2021	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	797000	usd
CY2023	us-gaap	Noninterest Income Other NoninterestIncomeOther	9141000	usd
CY2022	us-gaap	Noninterest Income Other NoninterestIncomeOther	1874000	usd
CY2021	us-gaap	Noninterest Income Other NoninterestIncomeOther	2725000	usd
CY2023	us-gaap	Noninterest Income NoninterestIncome	49858000	usd
CY2022	us-gaap	Noninterest Income NoninterestIncome	41862000	usd
CY2021	us-gaap	Noninterest Income NoninterestIncome	44720000	usd
CY2023	us-gaap	Labor And Related Expense LaborAndRelatedExpense	59147000	usd
CY2022	us-gaap	Labor And Related Expense LaborAndRelatedExpense	58530000	usd
CY2021	us-gaap	Labor And Related Expense LaborAndRelatedExpense	57882000	usd
CY2023	us-gaap	Occupancy Net OccupancyNet	6360000	usd
CY2022	us-gaap	Occupancy Net OccupancyNet	6287000	usd
CY2021	us-gaap	Occupancy Net OccupancyNet	5728000	usd
CY2023	us-gaap	Equipment Expense EquipmentExpense	5632000	usd
CY2022	us-gaap	Equipment Expense EquipmentExpense	5763000	usd
CY2021	us-gaap	Equipment Expense EquipmentExpense	5530000	usd
CY2023	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	14003000	usd
CY2022	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	12826000	usd
CY2021	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	12674000	usd
CY2023	lkfn	Corporate And Business Development Expense CorporateAndBusinessDevelopmentExpense	4807000	usd
CY2022	lkfn	Corporate And Business Development Expense CorporateAndBusinessDevelopmentExpense	5198000	usd
CY2021	lkfn	Corporate And Business Development Expense CorporateAndBusinessDevelopmentExpense	4262000	usd
CY2023	lkfn	Regulatory Fees And Federal Deposit Insurance Corporation Insurance RegulatoryFeesAndFederalDepositInsuranceCorporationInsurance	3363000	usd
CY2022	lkfn	Regulatory Fees And Federal Deposit Insurance Corporation Insurance RegulatoryFeesAndFederalDepositInsuranceCorporationInsurance	1999000	usd
CY2021	lkfn	Regulatory Fees And Federal Deposit Insurance Corporation Insurance RegulatoryFeesAndFederalDepositInsuranceCorporationInsurance	2242000	usd
CY2023	us-gaap	Professional Fees ProfessionalFees	8583000	usd
CY2022	us-gaap	Professional Fees ProfessionalFees	6483000	usd
CY2021	us-gaap	Professional Fees ProfessionalFees	7064000	usd
CY2023	lkfn	Wire Fraud Loss WireFraudLoss	18058000	usd
CY2022	lkfn	Wire Fraud Loss WireFraudLoss	0	usd
CY2021	lkfn	Wire Fraud Loss WireFraudLoss	0	usd
CY2023	us-gaap	Other Noninterest Expense OtherNoninterestExpense	10757000	usd
CY2022	us-gaap	Other Noninterest Expense OtherNoninterestExpense	13124000	usd
CY2021	us-gaap	Other Noninterest Expense OtherNoninterestExpense	8905000	usd
CY2023	us-gaap	Noninterest Expense NoninterestExpense	130710000	usd
CY2022	us-gaap	Noninterest Expense NoninterestExpense	110210000	usd
CY2021	us-gaap	Noninterest Expense NoninterestExpense	104287000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	110333000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	125164000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	117444000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	16566000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	21347000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	21711000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	93767000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	103817000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	95733000	usd
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	25604751	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	25528328	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	25475994	shares
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.67
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.07
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.76
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	25723165	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	25712538	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	25620105	shares
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.65
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.04
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.74
CY2023	us-gaap	Net Income Loss NetIncomeLoss	93767000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	103817000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	95733000	usd
CY2023	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	40639000	usd
CY2022	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-261256000	usd
CY2021	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-14553000	usd
CY2023	us-gaap	Oci Debt Securities Available For Sale Transfer To Held To Maturity Adjustment From Aoci For Amortization Of Gain Loss After Tax OciDebtSecuritiesAvailableForSaleTransferToHeldToMaturityAdjustmentFromAociForAmortizationOfGainLossAfterTax	-1987000	usd
CY2022	us-gaap	Oci Debt Securities Available For Sale Transfer To Held To Maturity Adjustment From Aoci For Amortization Of Gain Loss After Tax OciDebtSecuritiesAvailableForSaleTransferToHeldToMaturityAdjustmentFromAociForAmortizationOfGainLossAfterTax	-1518000	usd
CY2021	us-gaap	Oci Debt Securities Available For Sale Transfer To Held To Maturity Adjustment From Aoci For Amortization Of Gain Loss After Tax OciDebtSecuritiesAvailableForSaleTransferToHeldToMaturityAdjustmentFromAociForAmortizationOfGainLossAfterTax	0	usd
CY2023	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-25000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	21000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	797000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	42651000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	-259759000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	-15350000	usd
CY2023	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	8957000	usd
CY2022	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	-54549000	usd
CY2021	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	-3224000	usd
CY2023	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	33694000	usd
CY2022	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-205210000	usd
CY2021	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-12126000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	-13000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	115000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	390000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	59000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	144000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	242000	usd
CY2023	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPortionAttributableToParent	-46000	usd
CY2022	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPortionAttributableToParent	-259000	usd
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPortionAttributableToParent	-632000	usd
CY2023	us-gaap	Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent	-12000	usd
CY2022	us-gaap	Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent	-65000	usd
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent	-157000	usd
CY2023	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	-34000	usd
CY2022	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	-194000	usd
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	-475000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	33728000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-205016000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-11651000	usd
CY2023	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	127495000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-101199000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	84082000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	95733000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-11651000	usd
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.36
CY2021	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	34653000	usd
CY2021	lkfn	Treasury Shares Purchased Deferred Directors Plan TreasurySharesPurchasedDeferredDirectorsPlan	0	usd
CY2021	lkfn	Treasury Stock Sold And Distributed Under Deferred Directors Plan Value TreasuryStockSoldAndDistributedUnderDeferredDirectorsPlanValue	0	usd
CY2021	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-1914000	usd
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	7158000	usd
CY2021Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	704906000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	103817000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-205016000	usd
CY2022	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.60
CY2022	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	40851000	usd
CY2022	lkfn	Treasury Shares Purchased Deferred Directors Plan TreasurySharesPurchasedDeferredDirectorsPlan	0	usd
CY2022	lkfn	Treasury Stock Sold And Distributed Under Deferred Directors Plan Value TreasuryStockSoldAndDistributedUnderDeferredDirectorsPlanValue	0	usd
CY2022	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-1780000	usd
CY2022	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	7811000	usd
CY2022Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	568887000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	93767000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	33728000	usd
CY2023	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.84
CY2023	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	47107000	usd
CY2023	lkfn	Treasury Shares Purchased Deferred Directors Plan TreasurySharesPurchasedDeferredDirectorsPlan	0	usd
CY2023	lkfn	Treasury Stock Sold And Distributed Under Deferred Directors Plan Value TreasuryStockSoldAndDistributedUnderDeferredDirectorsPlanValue	0	usd
CY2023	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-3135000	usd
CY2023	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3653000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	93767000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	103817000	usd
CY2023	us-gaap	Depreciation Depreciation	6173000	usd
CY2022	us-gaap	Depreciation Depreciation	6020000	usd
CY2021	us-gaap	Depreciation Depreciation	6105000	usd
CY2023	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	5850000	usd
CY2022	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	9375000	usd
CY2021	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	1077000	usd
CY2023	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	0	usd
CY2022	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-96000	usd
CY2021	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-67000	usd
CY2023	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	0	usd
CY2022	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	757000	usd
CY2021	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	2282000	usd
CY2023	us-gaap	Servicing Asset At Amortized Value Valuation Allowance ServicingAssetAtAmortizedValueValuationAllowance	540000	usd
CY2022	us-gaap	Servicing Asset At Amortized Value Valuation Allowance ServicingAssetAtAmortizedValueValuationAllowance	-715000	usd
CY2021	us-gaap	Servicing Asset At Amortized Value Valuation Allowance ServicingAssetAtAmortizedValueValuationAllowance	0	usd
CY2023	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	8601000	usd
CY2022	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	28666000	usd
CY2021	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	119439000	usd
CY2023	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	292000	usd
CY2022	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	1028000	usd
CY2021	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	4376000	usd
CY2023	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	8022000	usd
CY2022	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	36454000	usd
CY2021	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	126391000	usd
CY2023	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-3000	usd
CY2022	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-7000	usd
CY2021	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-43000	usd
CY2023	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	-25000	usd
CY2022	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	21000	usd
CY2021	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	797000	usd
CY2023	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-4915000	usd
CY2022	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-6342000	usd
CY2021	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-4959000	usd
CY2023	us-gaap	Share Based Compensation ShareBasedCompensation	3653000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	7811000	usd
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	7158000	usd
CY2023	lkfn	Earning On Life Insurance EarningOnLifeInsurance	3133000	usd
CY2022	lkfn	Earning On Life Insurance EarningOnLifeInsurance	432000	usd
CY2021	lkfn	Earning On Life Insurance EarningOnLifeInsurance	2467000	usd
CY2023	lkfn	Gain On Life Insurance GainOnLifeInsurance	131000	usd
CY2022	lkfn	Gain On Life Insurance GainOnLifeInsurance	0	usd
CY2021	lkfn	Gain On Life Insurance GainOnLifeInsurance	415000	usd
CY2023	lkfn	Excess Tax Benefit From Share Based Compensation In Operating Activities ExcessTaxBenefitFromShareBasedCompensationInOperatingActivities	718000	usd
CY2022	lkfn	Excess Tax Benefit From Share Based Compensation In Operating Activities ExcessTaxBenefitFromShareBasedCompensationInOperatingActivities	514000	usd
CY2021	lkfn	Excess Tax Benefit From Share Based Compensation In Operating Activities ExcessTaxBenefitFromShareBasedCompensationInOperatingActivities	330000	usd
CY2023	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	6169000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	10711000	usd
CY2021	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	1852000	usd
CY2023	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	10077000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	40750000	usd
CY2021	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-371000	usd
CY2023	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	20214000	usd
CY2022	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	65525000	usd
CY2021	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	18035000	usd
CY2023	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	113981000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	169342000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	113768000	usd
CY2023	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	105175000	usd
CY2022	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	25332000	usd
CY2021	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	13964000	usd
CY2023	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	71833000	usd
CY2022	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	108129000	usd
CY2021	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	137812000	usd
CY2023	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	5000	usd
CY2022	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	30000	usd
CY2021	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	0	usd
CY2023	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	7178000	usd
CY2022	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	315272000	usd
CY2021	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	835001000	usd
CY2023	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	258000	usd
CY2022	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	10808000	usd
CY2021	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	711000	usd
CY2023	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	212906000	usd
CY2022	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	427097000	usd
CY2021	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	-356660000	usd
CY2023	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	13000	usd
CY2022	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	6000	usd
CY2021	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	8000	usd
CY2023	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	5991000	usd
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	4821000	usd
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	6167000	usd
CY2023	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	0	usd
CY2022	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	932000	usd
CY2021	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	0	usd
CY2023	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	5625000	usd
CY2022	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	2955000	usd
CY2021	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	0	usd
CY2023	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	0	usd
CY2022	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	0	usd
CY2021	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	946000	usd
CY2023	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	0	usd
CY2022	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	0	usd
CY2021	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	943000	usd
CY2023	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-54932000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-626524000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-331546000	usd
CY2023	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	259905000	usd
CY2022	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	-274787000	usd
CY2021	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	698602000	usd
CY2023	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-22000000	usd
CY2022	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	22000000	usd
CY2021	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-10500000	usd
CY2023	lkfn	Payments On Short Term Fhlb Borrowings PaymentsOnShortTermFHLBBorrowings	275000000	usd
CY2022	lkfn	Payments On Short Term Fhlb Borrowings PaymentsOnShortTermFHLBBorrowings	0	usd
CY2021	lkfn	Payments On Short Term Fhlb Borrowings PaymentsOnShortTermFHLBBorrowings	0	usd
CY2023	lkfn	Proceeds From Short Term Fhlb Borrowings ProceedsFromShortTermFHLBBorrowings	50000000	usd
CY2022	lkfn	Proceeds From Short Term Fhlb Borrowings ProceedsFromShortTermFHLBBorrowings	275000000	usd
CY2021	lkfn	Proceeds From Short Term Fhlb Borrowings ProceedsFromShortTermFHLBBorrowings	0	usd
CY2023	lkfn	Payments On Long Term Federal Home Loan Bank Borrowings PaymentsOnLongTermFederalHomeLoanBankBorrowings	0	usd
CY2022	lkfn	Payments On Long Term Federal Home Loan Bank Borrowings PaymentsOnLongTermFederalHomeLoanBankBorrowings	75000000	usd
CY2021	lkfn	Payments On Long Term Federal Home Loan Bank Borrowings PaymentsOnLongTermFederalHomeLoanBankBorrowings	0	usd
CY2023	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	usd
CY2022	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	usd
CY2021	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	usd
CY2023	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	47094000	usd
CY2022	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	40838000	usd
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	34640000	usd
CY2023	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	13000	usd
CY2022	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	13000	usd
CY2021	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	13000	usd
CY2023	lkfn	Proceeds From Repayment Of Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromRepaymentOfIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	-3135000	usd
CY2022	lkfn	Proceeds From Repayment Of Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromRepaymentOfIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	-1780000	usd
CY2021	lkfn	Proceeds From Repayment Of Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromRepaymentOfIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	-1914000	usd
CY2023	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	575000	usd
CY2022	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	579000	usd
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	559000	usd
CY2023	us-gaap	Proceeds From Sale Of Treasury Stock ProceedsFromSaleOfTreasuryStock	405000	usd
CY2022	us-gaap	Proceeds From Sale Of Treasury Stock ProceedsFromSaleOfTreasuryStock	221000	usd
CY2021	us-gaap	Proceeds From Sale Of Treasury Stock ProceedsFromSaleOfTreasuryStock	115000	usd
CY2023	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-37507000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-95776000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	651091000	usd
CY2023	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	21542000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-552958000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	433313000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	130282000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	683240000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	249927000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	151824000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	130282000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	683240000	usd
CY2023	us-gaap	Interest Paid Net InterestPaidNet	128525000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	36113000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	18471000	usd
CY2023	us-gaap	Income Taxes Paid IncomeTaxesPaid	14075000	usd
CY2022	us-gaap	Income Taxes Paid IncomeTaxesPaid	20580000	usd
CY2021	us-gaap	Income Taxes Paid IncomeTaxesPaid	25947000	usd
CY2023	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	284000	usd
CY2022	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	0	usd
CY2021	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	893000	usd
CY2023	lkfn	Property Transferred To Held For Sale PropertyTransferredToHeldForSale	0	usd
CY2022	lkfn	Property Transferred To Held For Sale PropertyTransferredToHeldForSale	0	usd
CY2021	lkfn	Property Transferred To Held For Sale PropertyTransferredToHeldForSale	0	usd
CY2023	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	1612000	usd
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0	usd
CY2023	lkfn	Number Of Branch Offices NumberOfBranchOffices	53	branchoffice
CY2023	lkfn	Number Of Counties Where Branch Offices Are Located NumberOfCountiesWhereBranchOfficesAreLocated	15	county
CY2023	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-bottom:12pt"><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="margin-bottom:10pt;text-indent:36pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">To prepare financial statements in conformity with U.S. generally accepted accounting principles (“GAAP”), management makes estimates and assumptions based on available information. These estimates and assumptions affect the amounts reported in the financial statements and the disclosures provided and future results could differ.</span></div>
CY2022	us-gaap	Contractually Specified Servicing Fees Amount ContractuallySpecifiedServicingFeesAmount	1200000	usd
CY2023Q4	us-gaap	Financing Receivable Accrued Interest After Allowance For Credit Loss FinancingReceivableAccruedInterestAfterAllowanceForCreditLoss	21500000	usd
CY2022Q4	us-gaap	Financing Receivable Accrued Interest After Allowance For Credit Loss FinancingReceivableAccruedInterestAfterAllowanceForCreditLoss	18400000	usd
CY2023Q4	lkfn	Financing Receivable Threshold For Individually Evaluated For Impairment FinancingReceivableThresholdForIndividuallyEvaluatedForImpairment	250000	usd
CY2023Q4	us-gaap	Equity Method Investments EquityMethodInvestments	13000000.0	usd
CY2022Q4	us-gaap	Equity Method Investments EquityMethodInvestments	12200000	usd
CY2023Q4	us-gaap	Cash Available For Distributions CashAvailableForDistributions	2800000	usd
CY2022Q4	us-gaap	Cash Available For Distributions CashAvailableForDistributions	3900000	usd
CY2023Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	384000	usd
CY2022Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	100000	usd
CY2021	us-gaap	Contractually Specified Servicing Fees Amount ContractuallySpecifiedServicingFeesAmount	1200000	usd
CY2023	us-gaap	Contractually Specified Servicing Fees Amount ContractuallySpecifiedServicingFeesAmount	1200000	usd
CY2023Q4	lkfn	Mortgage Loans On Real Estate Carrying Value MortgageLoansOnRealEstateCarryingValue	2200000	usd
CY2022Q4	lkfn	Mortgage Loans On Real Estate Carrying Value MortgageLoansOnRealEstateCarryingValue	2700000	usd
CY2023Q4	us-gaap	Mortgage Loans On Real Estate MortgageLoansOnRealEstate	333100000	usd
CY2022Q4	us-gaap	Mortgage Loans On Real Estate MortgageLoansOnRealEstate	364300000	usd
CY2023Q4	us-gaap	Escrow Deposit EscrowDeposit	1500000	usd
CY2022Q4	us-gaap	Escrow Deposit EscrowDeposit	1700000	usd
CY2022	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	usd
CY2023	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	usd
CY2021	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	usd
CY2023Q4	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	473120	shares
CY2022Q4	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	475902	shares
CY2023	lkfn	Shares Purchased Under Director Deferred Compensation Plan Included In Treasury Stock SharesPurchasedUnderDirectorDeferredCompensationPlanIncludedInTreasuryStock	184019	shares
CY2022	lkfn	Shares Purchased Under Director Deferred Compensation Plan Included In Treasury Stock SharesPurchasedUnderDirectorDeferredCompensationPlanIncludedInTreasuryStock	186801	shares
CY2023	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
CY2023	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
CY2023	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div><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-indent:36pt"><span><br/></span></div><div style="margin-bottom:12pt;text-indent:36pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Certain amounts appearing in the financial statements and notes thereto for prior periods have been reclassified to conform with the current presentation. The reclassifications had no effect on net income or stockholders’ equity as previously reported.</span></div>
CY2023Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	1226319000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	183000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	174774000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	0	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	1051728000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	1400783000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	224000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	215479000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	0	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	1185528000	usd
CY2022Q2	lkfn	Debt Securities Held To Maturity Transferred From Available For Sale Fair Value DebtSecuritiesHeldToMaturityTransferredFromAvailableForSaleFairValue	127000000	usd
CY2022Q2	lkfn	Debt Securities Held To Maturity Transferred From Available For Sale Unrealized Loss DebtSecuritiesHeldToMaturityTransferredFromAvailableForSaleUnrealizedLoss	24400000	usd
CY2022Q2	lkfn	Debt Securities Held To Maturity Transferred From Available For Sale Unrealized Loss Net Of Tax DebtSecuritiesHeldToMaturityTransferredFromAvailableForSaleUnrealizedLossNetOfTax	19300000	usd
CY2023Q4	lkfn	Debt Securities Held To Maturity Transferred From Available For Sale Unrealized Loss DebtSecuritiesHeldToMaturityTransferredFromAvailableForSaleUnrealizedLoss	20900000	usd
CY2023Q4	lkfn	Debt Securities Held To Maturity Transferred From Available For Sale Unrealized Loss Net Of Tax DebtSecuritiesHeldToMaturityTransferredFromAvailableForSaleUnrealizedLossNetOfTax	16500000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities Next Rolling Twelve Months Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCostBasis	1190000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities Next Rolling Twelve Months Fair Value AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue	1191000	usd
CY2023Q4	us-gaap	Heldtomaturity Securities Debt Maturities Next Rolling Twelve Months Amortized Cost HeldtomaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCost	0	usd
CY2023Q4	us-gaap	Held To Maturity Securities Debt Maturities Next Rolling Twelve Months Fair Value HeldToMaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue	0	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Two Through Five Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCostBasis	8011000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Two Through Five Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue	7421000	usd
CY2023Q4	us-gaap	Heldtomaturity Securities Debt Maturities Rolling Year Two Through Five Amortized Cost HeldtomaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCost	0	usd
CY2023Q4	us-gaap	Held To Maturity Securities Debt Maturities Rolling Year Two Through Five Fair Value HeldToMaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue	0	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Six Through Ten Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCostBasis	40627000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Six Through Ten Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue	38730000	usd
CY2023Q4	us-gaap	Heldtomaturity Securities Debt Maturities Rolling Year Six Through Ten Amortized Cost HeldtomaturitySecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCost	0	usd
CY2023Q4	us-gaap	Held To Maturity Securities Debt Maturities Rolling Year Six Through Ten Fair Value HeldToMaturitySecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue	0	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling After Year Ten Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenAmortizedCostBasis	654216000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling After Year Ten Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenFairValue	556544000	usd
CY2023Q4	us-gaap	Heldtomaturity Securities Debt Maturities Rolling After Ten Years Amortized Cost HeldtomaturitySecuritiesDebtMaturitiesRollingAfterTenYearsAmortizedCost	129918000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Debt Maturities Rolling After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesRollingAfterTenYearsFairValue	119215000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis	704044000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate	603886000	usd
CY2023Q4	lkfn	Held To Maturity Securities With Maturities Amortized Cost HeldToMaturitySecuritiesWithMaturitiesAmortizedCost	129918000	usd
CY2023Q4	lkfn	Held To Maturity Securities With Maturities Fair Value HeldToMaturitySecuritiesWithMaturitiesFairValue	119215000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost	522275000	usd
CY2023Q4	us-gaap	Mortgage Backed Securities Available For Sale Fair Value Disclosure MortgageBackedSecuritiesAvailableForSaleFairValueDisclosure	447842000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Debt Maturities Without Single Maturity Date Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateNetCarryingAmount	0	usd
CY2023Q4	us-gaap	Mortgage Backed Securities Held To Maturity Fair Value Disclosure MortgageBackedSecuritiesHeldToMaturityFairValueDisclosure	0	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	1226319000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	1051728000	usd
CY2023Q4	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	129918000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	119215000	usd
CY2023	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	105175000	usd
CY2022	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	25332000	usd
CY2021	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	13964000	usd
CY2023	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	439000	usd
CY2022	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	140000	usd
CY2021	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	797000	usd
CY2023	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	464000	usd
CY2022	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	119000	usd
CY2021	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	0	usd
CY2023	lkfn	Number Of Debt Securities Available For Sale Sold At Fair Value NumberOfDebtSecuritiesAvailableForSaleSoldAtFairValue	115	shares
CY2022	lkfn	Number Of Debt Securities Available For Sale Sold At Fair Value NumberOfDebtSecuritiesAvailableForSaleSoldAtFairValue	30	shares
CY2021	lkfn	Number Of Debt Securities Available For Sale Sold At Fair Value NumberOfDebtSecuritiesAvailableForSaleSoldAtFairValue	9	shares
CY2023Q4	us-gaap	Debt Securities Available For Sale Restricted DebtSecuritiesAvailableForSaleRestricted	792000000.0	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Restricted DebtSecuritiesAvailableForSaleRestricted	298200000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	31397000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	440000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	1002690000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	174334000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	1034087000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	174774000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	455318000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	53415000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	686704000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	162064000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	1142022000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	215479000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions	41	position
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions	513	position
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	554	position
CY2023Q4	lkfn	Number Of Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Less Than12 Months NumberOfHeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsLessThan12Months	0	position
CY2023Q4	lkfn	Number Of Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions12 Months Or More NumberOfHeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions12MonthsOrMore	41	position
CY2023Q4	us-gaap	Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions	41	position
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions	372	position
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions	280	position
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	652	position
CY2022Q4	lkfn	Number Of Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Less Than12 Months NumberOfHeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsLessThan12Months	0	position
CY2022Q4	lkfn	Number Of Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions12 Months Or More NumberOfHeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions12MonthsOrMore	41	position
CY2022Q4	us-gaap	Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions	41	position
CY2022Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	0	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	0	usd
CY2023Q4	lkfn	Debt Securities Available For Sale And Held To Maturity Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAndHeldToMaturityAccruedInterestAfterAllowanceForCreditLoss	7600000	usd
CY2022Q4	lkfn	Debt Securities Available For Sale And Held To Maturity Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAndHeldToMaturityAccruedInterestAfterAllowanceForCreditLoss	8900000	usd
CY2023Q4	lkfn	Debt Securities Available For Sale Percentage Backed By Government Or Investment Grade DebtSecuritiesAvailableForSalePercentageBackedByGovernmentOrInvestmentGrade	0.99
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss Fee And Loan In Process FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossFeeAndLoanInProcess	4919997000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss Fee And Loan In Process FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossFeeAndLoanInProcess	4713465000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	71972000	usd
CY2023Q4	us-gaap	Financing Receivable Deferred Income FinancingReceivableDeferredIncome	3463000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	4844562000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	4637790000	usd
CY2023Q4	us-gaap	Financing Receivable Accrued Interest After Allowance For Credit Loss FinancingReceivableAccruedInterestAfterAllowanceForCreditLoss	21500000	usd
CY2022Q4	us-gaap	Financing Receivable Accrued Interest After Allowance For Credit Loss FinancingReceivableAccruedInterestAfterAllowanceForCreditLoss	18400000	usd
CY2023Q4	us-gaap	Mortgage Loans In Process Of Foreclosure Amount MortgageLoansInProcessOfForeclosureAmount	238000	usd
CY2022Q4	us-gaap	Mortgage Loans In Process Of Foreclosure Amount MortgageLoansInProcessOfForeclosureAmount	306000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	72606000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	5850000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	7332000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery	848000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff After Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoffAfterRecovery	6484000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	71972000	usd
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	67773000	usd
CY2022	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	9375000	usd
CY2022	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	5134000	usd
CY2022	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery	592000	usd
CY2022	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff After Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoffAfterRecovery	4542000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	72606000	usd
CY2022	us-gaap	Servicing Assets And Servicing Liabilities At Fair Value Assumptions Used To Estimate Fair Value Discount Rate ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate	0.095
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	61408000	usd
CY2021	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	1077000	usd
CY2021	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	5983000	usd
CY2021	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery	2221000	usd
CY2021	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff After Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoffAfterRecovery	3762000	usd
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	67773000	usd
CY2023	lkfn	Loan Amount Of Credit Quality Analysis LoanAmountOfCreditQualityAnalysis	250000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year One Originated Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear	846498000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear	755972000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear	558989000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear	464644000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Five Originated Four Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear	221160000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Originated More Than Five Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear	293243000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Revolving Converted To Term Loan FinancingReceivableExcludingAccruedInterestRevolvingConvertedToTermLoan	3140506000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Revolving FinancingReceivableExcludingAccruedInterestRevolving	1776028000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	4916534000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Year One Originated Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYearWriteoff	16000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearWriteoff	5753000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYearWriteoff	179000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYearWriteoff	186000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Year Five Originated Four Years Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYearWriteoff	480000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Originated More Than Five Years Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYearWriteoff	1000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Revolving Converted To Term Loan Writeoff FinancingReceivableExcludingAccruedInterestRevolvingConvertedToTermLoanWriteoff	6615000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Revolving Writeoff FinancingReceivableExcludingAccruedInterestRevolvingWriteoff	717000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	7332000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year One Originated Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear	911943000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear	653839000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear	552202000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear	310151000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Five Originated Four Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear	126843000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Originated More Than Five Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear	297056000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Revolving Converted To Term Loan FinancingReceivableExcludingAccruedInterestRevolvingConvertedToTermLoan	2852034000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Revolving FinancingReceivableExcludingAccruedInterestRevolving	1858362000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	4710396000	usd
CY2023Q4	lkfn	Financing Receivable Amortized Cost Nonaccrual FinancingReceivableAmortizedCostNonaccrual	15685000	usd
CY2023Q4	lkfn	Financing Receivable Amortized Cost Nonaccrual With No Allowance Of Credit Loss FinancingReceivableAmortizedCostNonaccrualWithNoAllowanceOfCreditLoss	1901000	usd
CY2023Q4	lkfn	Financing Receivable Amortized Cost Before Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAmortizedCostBeforeAllowanceForCreditLossExcludingAccruedInterest	4916534000	usd
CY2022Q4	lkfn	Financing Receivable Amortized Cost Nonaccrual FinancingReceivableAmortizedCostNonaccrual	16964000	usd
CY2022Q4	lkfn	Financing Receivable Amortized Cost Nonaccrual With No Allowance Of Credit Loss FinancingReceivableAmortizedCostNonaccrualWithNoAllowanceOfCreditLoss	2615000	usd
CY2022Q4	lkfn	Financing Receivable Amortized Cost Before Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAmortizedCostBeforeAllowanceForCreditLossExcludingAccruedInterest	4710396000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Modified Period FinancingReceivableExcludingAccruedInterestModifiedPeriod	4428000	usd
CY2023	us-gaap	Financing Receivable Modification To Total Financing Receivables Excluding Accrued Interest Percent FinancingReceivableModificationToTotalFinancingReceivablesExcludingAccruedInterestPercent	0.0009
CY2023Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	2200000	usd
CY2023	lkfn	Percentage Of Discount From Appraised Value PercentageOfDiscountFromAppraisedValue	0.035
CY2023	lkfn	Weighted Average Maturity Of Residential Mortgages WeightedAverageMaturityOfResidentialMortgages	P20Y
CY2023	lkfn	Servicing Assets And Servicing Liabilities At Fair Value Assumptions Used To Estimate Fair Value Qualitative Information Prepayment Speed ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueQualitativeInformationPrepaymentSpeed	148	prepaymentspeed
CY2023	us-gaap	Servicing Assets And Servicing Liabilities At Fair Value Assumptions Used To Estimate Fair Value Discount Rate ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate	0.105
CY2022	lkfn	Servicing Assets And Servicing Liabilities At Fair Value Assumptions Used To Estimate Fair Value Qualitative Information Prepayment Speed ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueQualitativeInformationPrepaymentSpeed	159	prepaymentspeed
CY2023Q4	us-gaap	Land Land	12472000	usd
CY2022Q4	us-gaap	Land Land	12472000	usd
CY2023Q4	lkfn	Premises And Improvements Gross PremisesAndImprovementsGross	63862000	usd
CY2022Q4	lkfn	Premises And Improvements Gross PremisesAndImprovementsGross	61185000	usd
CY2023Q4	lkfn	Equipment And Furniture Gross EquipmentAndFurnitureGross	37483000	usd
CY2022Q4	lkfn	Equipment And Furniture Gross EquipmentAndFurnitureGross	37460000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	113817000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	111117000	usd
CY2023Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	55918000	usd
CY2022Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	53020000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	57899000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	58097000	usd
CY2023Q4	us-gaap	Goodwill Gross GoodwillGross	5000000.0	usd
CY2022Q4	lkfn	Borrowing Capacity Federal Home Loan Bank BorrowingCapacityFederalHomeLoanBank	800000000.0	usd
CY2023Q4	lkfn	Borrowing Capacity Federal Home Loan Bank BorrowingCapacityFederalHomeLoanBank	800000000.0	usd
CY2023Q4	lkfn	Pledged Financial Instruments Not Separately Reported Commercial Loans For Federal Reserve Bank Debt PledgedFinancialInstrumentsNotSeparatelyReportedCommercialLoansForFederalReserveBankDebt	1590000000	usd
CY2022Q4	lkfn	Pledged Financial Instruments Not Separately Reported Commercial Loans For Federal Reserve Bank Debt PledgedFinancialInstrumentsNotSeparatelyReportedCommercialLoansForFederalReserveBankDebt	928600000	usd
CY2023Q4	lkfn	Borrowing Capacity Federal Reserve Bank BorrowingCapacityFederalReserveBank	1260000000	usd
CY2022Q4	lkfn	Borrowing Capacity Federal Reserve Bank BorrowingCapacityFederalReserveBank	758300000	usd
CY2023Q4	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	325000000	usd
CY2022Q4	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	350000000.0	usd
CY2023	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	0	usd
CY2023Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	1353477000	usd
CY2022Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	1736761000	usd
CY2023Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	301168000	usd
CY2022Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	403773000	usd
CY2023Q4	lkfn	Demand Deposit Liabilities Interest Bearing DemandDepositLiabilitiesInterestBearing	3049059000	usd
CY2022Q4	lkfn	Demand Deposit Liabilities Interest Bearing DemandDepositLiabilitiesInterestBearing	2693900000	usd
CY2023Q4	lkfn	Other Time Deposits OtherTimeDeposits	224083000	usd
CY2022Q4	lkfn	Other Time Deposits OtherTimeDeposits	170759000	usd
CY2023Q4	lkfn	Time Deposits100000 To250000 TimeDeposits100000To250000	235096000	usd
CY2022Q4	lkfn	Time Deposits100000 To250000 TimeDeposits100000To250000	185194000	usd
CY2023Q4	lkfn	Timedeposits250000 Ormore Timedeposits250000Ormore	557642000	usd
CY2022Q4	lkfn	Timedeposits250000 Ormore Timedeposits250000Ormore	270233000	usd
CY2023Q4	us-gaap	Deposits Deposits	5720525000	usd
CY2022Q4	us-gaap	Deposits Deposits	5460620000	usd
CY2023Q4	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	879303000	usd
CY2023Q4	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	84751000	usd
CY2023Q4	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	16885000	usd
CY2023Q4	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	31638000	usd
CY2023Q4	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	4110000	usd
CY2023Q4	us-gaap	Time Deposit Maturities After Year Five TimeDepositMaturitiesAfterYearFive	134000	usd
CY2023Q4	us-gaap	Time Deposits TimeDeposits	1016821000	usd
CY2022Q4	lkfn	Deposits Available To Bank DepositsAvailableToBank	100000000.0	usd
CY2023Q4	lkfn	Deposits Available To Bank DepositsAvailableToBank	100000000.0	usd
CY2022Q4	lkfn	Amount Of Deposits Drawn AmountOfDepositsDrawn	10000000.0	usd
CY2023Q4	lkfn	Amount Of Deposits Drawn AmountOfDepositsDrawn	10000000.0	usd
CY2023Q4	lkfn	Pledged Financial Instruments Not Separately Reported Residential Mortgage Loans And Mortgage Related Securities Available For Sale For Federal Home Bank Debt PledgedFinancialInstrumentsNotSeparatelyReportedResidentialMortgageLoansAndMortgageRelatedSecuritiesAvailableForSaleForFederalHomeBankDebt	824000000	usd
CY2022Q4	lkfn	Pledged Financial Instruments Not Separately Reported Residential Mortgage Loans And Mortgage Related Securities Available For Sale For Federal Home Bank Debt PledgedFinancialInstrumentsNotSeparatelyReportedResidentialMortgageLoansAndMortgageRelatedSecuritiesAvailableForSaleForFederalHomeBankDebt	549000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	18000000.0	usd
CY2022Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	12400000	usd
CY2023Q4	lkfn	Line Of Credit Facility Remaining Borrowing Capacity Number Of Banks LineOfCreditFacilityRemainingBorrowingCapacityNumberOfBanks	11	bank
CY2022	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	22000000	usd
CY2023Q4	lkfn	Number Of Retired Officers NumberOfRetiredOfficers	6	officer
CY2023	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	16171000	usd
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	22825000	usd
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	21329000	usd
CY2023	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	1302000	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-2327000	usd
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-1249000	usd
CY2023	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-131000	usd
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CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1892000	usd
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CY2022	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-448000	usd
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-261000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	16566000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	21347000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	21711000	usd
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CY2022	lkfn	Interest Income Security Tax Exempt InterestIncomeSecurityTaxExempt	4438000	usd
CY2021	lkfn	Interest Income Security Tax Exempt InterestIncomeSecurityTaxExempt	2822000	usd
CY2023	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	269000	usd
CY2022	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	159000	usd
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	116000	usd
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CY2022	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	671000	usd
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1288000	usd
CY2023	lkfn	Income Tax Reconciliation Deductions Captive Insurance Premium Income IncomeTaxReconciliationDeductionsCaptiveInsurancePremiumIncome	261000	usd
CY2022	lkfn	Income Tax Reconciliation Deductions Captive Insurance Premium Income IncomeTaxReconciliationDeductionsCaptiveInsurancePremiumIncome	417000	usd
CY2021	lkfn	Income Tax Reconciliation Deductions Captive Insurance Premium Income IncomeTaxReconciliationDeductionsCaptiveInsurancePremiumIncome	303000	usd
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CY2022	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	586000	usd
CY2021	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	578000	usd
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CY2023	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	784000	usd
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CY2022	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	101000	usd
CY2021	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	61000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	16566000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	21347000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	21711000	usd
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CY2022Q4	lkfn	Deferred Tax Assets Bad Debts DeferredTaxAssetsBadDebts	18561000	usd
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CY2022Q4	lkfn	Deferred Tax Assets Nonaccrual Loan Interest DeferredTaxAssetsNonaccrualLoanInterest	256000	usd
CY2023Q4	lkfn	Deferred Tax Assets Long Term Incentive Plan DeferredTaxAssetsLongTermIncentivePlan	2342000	usd
CY2022Q4	lkfn	Deferred Tax Assets Long Term Incentive Plan DeferredTaxAssetsLongTermIncentivePlan	2894000	usd
CY2023Q4	lkfn	Deferred Tax Assets Lease Liability DeferredTaxAssetsLeaseLiability	1199000	usd
CY2022Q4	lkfn	Deferred Tax Assets Lease Liability DeferredTaxAssetsLeaseLiability	1354000	usd
CY2023Q4	lkfn	Deferred Tax Assets Deferred Loan Fees DeferredTaxAssetsDeferredLoanFees	781000	usd
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CY2022Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	1130000	usd
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CY2022Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	27858000	usd
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CY2022Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	988000	usd
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CY2023Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	11054000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	11224000	usd
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CY2022Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	16634000	usd
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CY2022	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	7800000	usd
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	7200000	usd
CY2023	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	908000	usd
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CY2023Q4	us-gaap	Statutory Accounting Practices Statutory Amount Available For Dividend Payments StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPayments	116700000000	usd
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CY2022Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	2735000	usd
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CY2022	us-gaap	Net Income Loss NetIncomeLoss	103817000	usd
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CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	25528328	shares
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CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	25528328	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	25475994	shares
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CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	144111	shares
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	25723165	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	25712538	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	25620105	shares
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.65
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CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.74
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CY2023Q4	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	300000	usd
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CY2023Q4	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	48299000	usd
CY2023Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	47993000	usd
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CY2023Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	47169000	usd
CY2023Q4	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	17208000	usd
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CY2023Q2	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	11501000	usd
CY2023Q1	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	10314000	usd
CY2023Q4	us-gaap	Noninterest Expense NoninterestExpense	29445000	usd
CY2023Q3	us-gaap	Noninterest Expense NoninterestExpense	29097000	usd
CY2023Q2	us-gaap	Noninterest Expense NoninterestExpense	42734000	usd
CY2023Q1	us-gaap	Noninterest Expense NoninterestExpense	29434000	usd
CY2023Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6436000	usd
CY2023Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4479000	usd
CY2023Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1880000	usd
CY2023Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3771000	usd
CY2023Q4	us-gaap	Net Income Loss NetIncomeLoss	29626000	usd
CY2023Q3	us-gaap	Net Income Loss NetIncomeLoss	25252000	usd
CY2023Q2	us-gaap	Net Income Loss NetIncomeLoss	14611000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	24278000	usd
CY2023Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.16
CY2023Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.99
CY2023Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.57
CY2023Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.95
CY2023Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.16
CY2023Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.98
CY2023Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.57
CY2023Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.94
CY2022Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	75353000	usd
CY2022Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	62558000	usd
CY2022Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	53622000	usd
CY2022Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	48034000	usd
CY2022Q4	us-gaap	Interest Expense InterestExpense	18516000	usd
CY2022Q3	us-gaap	Interest Expense InterestExpense	10066000	usd
CY2022Q2	us-gaap	Interest Expense InterestExpense	4944000	usd
CY2022Q1	us-gaap	Interest Expense InterestExpense	3154000	usd
CY2022Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	56837000	usd
CY2022Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	52492000	usd
CY2022Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	48678000	usd
CY2022Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	44880000	usd
CY2022Q4	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	8958000	usd
CY2022Q3	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	0	usd
CY2022Q2	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	0	usd
CY2022Q1	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	417000	usd
CY2022Q4	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	47879000	usd
CY2022Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	52492000	usd
CY2022Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	48678000	usd
CY2022Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	44463000	usd
CY2022Q4	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	10519000	usd
CY2022Q3	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	10164000	usd
CY2022Q2	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	10492000	usd
CY2022Q1	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	10687000	usd
CY2022Q4	us-gaap	Noninterest Expense NoninterestExpense	27434000	usd
CY2022Q3	us-gaap	Noninterest Expense NoninterestExpense	27894000	usd
CY2022Q2	us-gaap	Noninterest Expense NoninterestExpense	27913000	usd
CY2022Q1	us-gaap	Noninterest Expense NoninterestExpense	26969000	usd
CY2022Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4987000	usd
CY2022Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6237000	usd
CY2022Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5584000	usd
CY2022Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4539000	usd
CY2022Q4	us-gaap	Net Income Loss NetIncomeLoss	25977000	usd
CY2022Q3	us-gaap	Net Income Loss NetIncomeLoss	28525000	usd
CY2022Q2	us-gaap	Net Income Loss NetIncomeLoss	25673000	usd
CY2022Q1	us-gaap	Net Income Loss NetIncomeLoss	23642000	usd
CY2022Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.02
CY2022Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.12
CY2022Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.00
CY2022Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.93
CY2022Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.01
CY2022Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.11
CY2022Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.00
CY2022Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.92
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	744000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	756000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	731000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	753000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	593000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	1591000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	5168000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	473000	usd
CY2023Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	4695000	usd
CY2023Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	4695000	usd
CY2023	us-gaap	Operating Lease Cost OperatingLeaseCost	724000	usd
CY2022	us-gaap	Operating Lease Cost OperatingLeaseCost	667000	usd
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	536000	usd
CY2023	us-gaap	Short Term Lease Cost ShortTermLeaseCost	18000	usd
CY2022	us-gaap	Short Term Lease Cost ShortTermLeaseCost	22000	usd
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	24000	usd
CY2023	us-gaap	Lease Cost LeaseCost	742000	usd
CY2022	us-gaap	Lease Cost LeaseCost	689000	usd
CY2021	us-gaap	Lease Cost LeaseCost	560000	usd
CY2023	us-gaap	Operating Lease Payments OperatingLeasePayments	724000	usd
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	667000	usd
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	536000	usd
CY2023Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P6Y3M18D
CY2022Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y3M18D
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y10M24D
CY2023Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.025
CY2022Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.025
CY2021Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.028
CY2023	dei	Auditor Name AuditorName	Crowe LLP
CY2023	dei	Auditor Firm AuditorFirmId	173

Files In Submission

Name	View Source	Status
0000721994-24-000013-index-headers.html	Edgar Link	pending
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FilingSummary.xml	Edgar Link	unprocessable
lkfn-20231231_lab.xml	Edgar Link	unprocessable

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$LKFN
LAKELAND FINANCIAL CORP Stock $lkfn

2024 Q1 Form 10-K Financial Statement

#000072199424000013 Filed on February 21, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$LKFN LAKELAND FINANCIAL CORP Stock $lkfn

2024 Q1 Form 10-K Financial Statement

#000072199424000013 Filed on February 21, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$LKFN
LAKELAND FINANCIAL CORP Stock $lkfn