$LKFN
LAKELAND FINANCIAL CORP Stock $lkfn

$lkfn Overview Financials Valuation SEC Filings Company Website

2019 Q4 Form 10-K Financial Statement

#000110465920024065 Filed on February 24, 2020

Income Statement

Concept	2019 Q4	2018 Q4	2018 Q3
Revenue	$52.31M	$53.73M	$50.38M
YoY Change	-2.64%	21.66%	18.29%
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	$1.500M	$1.500M	$1.400M
YoY Change	0.0%	7.14%	7.69%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$13.43M	$14.14M	$12.45M
YoY Change	-5.01%	61.23%	56.28%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$27.63M	$26.84M	$25.25M
YoY Change	2.94%	14.65%	7.91%
Income Tax	$5.431M	$5.480M	$4.679M
% Of Pretax Income	19.66%	20.42%	18.53%
Net Earnings	$22.20M	$21.36M	$20.57M
YoY Change	3.91%	83.74%	29.98%
Net Earnings / Revenue	42.43%	39.76%	40.83%
Basic Earnings Per Share	$0.86	$0.84	$0.81
Diluted Earnings Per Share	$0.86	$0.83	$0.80
COMMON SHARES
Basic Shares Outstanding	25.62M	25.30M shares	25.30M
Diluted Shares Outstanding			25.75M

Balance Sheet

Concept	2019 Q4	2018 Q4	2018 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$99.38M	$216.9M	$182.3M
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	$60.37M	$58.10M	$57.64M
YoY Change	3.9%	2.89%	2.21%
Goodwill	$4.970M	$4.970M	$4.970M
YoY Change	0.0%	0.0%
Intangibles
YoY Change
Long-Term Investments	$6.700M	$7.000M
YoY Change	-4.29%	32.08%
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$4.947B	$4.875B	$4.758B
YoY Change	1.47%	4.11%	6.81%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$11.60M	$10.40M	$8.700M
YoY Change	11.54%	65.08%	61.11%
Accrued Expenses	$5.100M
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$75.60M	$97.40M
YoY Change	-100.0%	6.93%	52.43%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$16.70M	$10.40M	$8.700M
YoY Change	60.58%	65.08%	61.11%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$30.90M	$30.90M
YoY Change	-100.0%	0.0%	0.0%
Other Long-Term Liabilities	$28.10M	$22.60M	$26.10M
YoY Change	24.34%	27.68%	50.0%
Total Long-Term Liabilities	$28.10M	$53.50M	$57.00M
YoY Change	-47.48%	10.08%	18.01%
TOTAL LIABILITIES
Total Short-Term Liabilities	$16.70M	$10.40M	$8.700M
Total Long-Term Liabilities	$28.10M	$53.50M	$57.00M
Total Liabilities	$4.349B	$4.354B	$4.259B
YoY Change	-0.11%	3.3%	6.7%
SHAREHOLDERS EQUITY
Retained Earnings	$475.2M	$419.2M	$404.4M
YoY Change	13.38%	15.22%
Common Stock	$114.9M	$112.4M	$111.0M
YoY Change	2.2%	3.23%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$4.153M	$3.756M	$3.711M
YoY Change	10.57%	10.21%
Treasury Stock Shares	$178.7K	$173.0K	171.9K shares
Shareholders Equity	$598.0M	$521.6M	$498.5M
YoY Change
Total Liabilities & Shareholders Equity	$4.947B	$4.875B	$4.758B
YoY Change	1.47%	4.11%	6.81%

Cashflow Statement

Concept	2019 Q4	2018 Q4	2018 Q3
OPERATING ACTIVITIES
Net Income	$22.20M	$21.36M	$20.57M
YoY Change	3.91%	83.74%	29.98%
Depreciation, Depletion And Amortization	$1.500M	$1.500M	$1.400M
YoY Change	0.0%	7.14%	7.69%
Cash From Operating Activities	$28.10M	$29.80M	$29.60M
YoY Change	-5.7%	23.65%	72.09%
INVESTING ACTIVITIES
Capital Expenditures	-$2.000M	-$2.600M	-$1.800M
YoY Change	-23.08%	73.33%	38.46%
Acquisitions
YoY Change
Other Investing Activities	-$45.20M	-$82.50M	$4.000M
YoY Change	-45.21%	-57.08%	-106.21%
Cash From Investing Activities	-$47.20M	-$85.00M	$2.200M
YoY Change	-44.47%	-56.12%	-103.35%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$928.0K
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-18.10M	89.80M	-29.70M
YoY Change	-120.16%	-58.39%	-172.44%
NET CHANGE
Cash From Operating Activities	28.10M	29.80M	29.60M
Cash From Investing Activities	-47.20M	-85.00M	2.200M
Cash From Financing Activities	-18.10M	89.80M	-29.70M
Net Change In Cash	-37.20M	34.60M	2.100M
YoY Change	-207.51%	-25.11%	-128.0%
FREE CASH FLOW
Cash From Operating Activities	$28.10M	$29.80M	$29.60M
Capital Expenditures	-$2.000M	-$2.600M	-$1.800M
Free Cash Flow	$30.10M	$32.40M	$31.40M
YoY Change	-7.1%	26.56%	69.73%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value
CY2019Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2018Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2018Q4	us-gaap	Common Stock No Par Value CommonStockNoParValue	0
CY2019Q4	us-gaap	Common Stock No Par Value CommonStockNoParValue	0
CY2019	dei	Entity Central Index Key EntityCentralIndexKey	0000721994
CY2019	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2019	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2019
CY2019	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2019	dei	Amendment Flag AmendmentFlag	false
CY2019	dei	Document Annual Report DocumentAnnualReport	true
CY2019	dei	Document Transition Report DocumentTransitionReport	false
CY2019Q4	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	us-gaap:OtherLiabilities
CY2017Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	0
CY2018Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	0
CY2019Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	0
CY2019	dei	Document Type DocumentType	10-K
CY2019	dei	Document Period End Date DocumentPeriodEndDate	2019-12-31
CY2019	dei	Entity File Number EntityFileNumber	0-11487
CY2019	dei	Entity Registrant Name EntityRegistrantName	LAKELAND FINANCIAL CORPORATION
CY2019	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	IN
CY2019	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	35-1559596
CY2019	dei	Entity Address Address Line1 EntityAddressAddressLine1	202 East Center Street
CY2019	dei	Entity Address Address Line2 EntityAddressAddressLine2	P.O. Box 1387
CY2019	dei	Entity Address City Or Town EntityAddressCityOrTown	Warsaw
CY2019	dei	Entity Address State Or Province EntityAddressStateOrProvince	IN
CY2019	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	46581
CY2019	dei	City Area Code CityAreaCode	574
CY2019	dei	Local Phone Number LocalPhoneNumber	267-6144
CY2019	dei	Security12b Title Security12bTitle	Common Stock, no par value
CY2019	dei	Trading Symbol TradingSymbol	LKFN
CY2019	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2019	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2019	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2019	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2019	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2019	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2019	dei	Entity Small Business EntitySmallBusiness	false
CY2019	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2019	dei	Entity Shell Company EntityShellCompany	false
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CY2018	us-gaap	Noninterest Expense NoninterestExpense	86229000
CY2017	us-gaap	Noninterest Expense NoninterestExpense	79298000
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	107385000
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	98944000
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	89634000
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	20338000
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	18533000
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	32304000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	87047000
CY2018	us-gaap	Net Income Loss NetIncomeLoss	80411000
CY2017	us-gaap	Net Income Loss NetIncomeLoss	57330000
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	25588404
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	25288533
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	25181208
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.40
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.18
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.28
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	25758893
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	25727831
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	25663381
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.38
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.13
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.23
CY2019	us-gaap	Net Income Loss NetIncomeLoss	87047000
CY2018	us-gaap	Net Income Loss NetIncomeLoss	80411000
CY2017	us-gaap	Net Income Loss NetIncomeLoss	57330000
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	23438000
CY2018	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-7339000
CY2017	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	2245000
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	142000
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-50000
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	32000
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	23296000
CY2017	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-142000
CY2018	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	-7289000
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	2213000
CY2019	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	4893000
CY2018	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	-1637000
CY2017	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	707000
CY2019	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	18403000
CY2018	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-5652000
CY2017	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	1506000
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	-409000
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	269000
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	97000
CY2019	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	205000
CY2018	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	266000
CY2017	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	265000
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPortionAttributableToParent	204000
CY2018	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPortionAttributableToParent	-535000
CY2017	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPortionAttributableToParent	-362000
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent	51000
CY2018	us-gaap	Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent	-163000
CY2017	us-gaap	Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent	-151000
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	153000
CY2018	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	-372000
CY2017	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	-211000
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	18250000
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-5280000
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1717000
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	105297000
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	75131000
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	59047000
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	427067000
CY2017	us-gaap	Net Income Loss NetIncomeLoss	57330000
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1717000
CY2017	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.85
CY2017	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	21409000
CY2017	lkfn	Treasury Shares Purchased Deferred Directors Plan TreasurySharesPurchasedDeferredDirectorsPlan	0
CY2017	lkfn	Treasury Shares Purchased Deferred Directors Plan TreasurySharesPurchasedDeferredDirectorsPlan	0
CY2017	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	1736000
CY2017	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	5698000
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	468667000
CY2018	us-gaap	Net Income Loss NetIncomeLoss	80411000
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-5280000
CY2018	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.00
CY2018	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	25291000
CY2018	lkfn	Treasury Shares Purchased Deferred Directors Plan TreasurySharesPurchasedDeferredDirectorsPlan	0
CY2018	lkfn	Treasury Stock Sold And Distributed Under Deferred Directors Plan Value TreasuryStockSoldAndDistributedUnderDeferredDirectorsPlanValue	0
CY2018	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	2435000
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	5608000
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	521704000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	87047000
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	18250000
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.16
CY2019	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	29652000
CY2018	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	51715000
CY2017	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	599000
CY2017	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	57621000
CY2019	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	3000
CY2019	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	528000
CY2018	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	503000
CY2017	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	54188000
CY2019	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	2043000
CY2018	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	1713000
CY2017	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	1749000
CY2019	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	64820000
CY2019	lkfn	Exercisesofwarrantsvalue Exercisesofwarrantsvalue	0
CY2019	lkfn	Treasury Shares Purchased Deferred Directors Plan TreasurySharesPurchasedDeferredDirectorsPlan	0
CY2019	lkfn	Treasury Stock Sold And Distributed Under Deferred Directors Plan Value TreasuryStockSoldAndDistributedUnderDeferredDirectorsPlanValue	0
CY2019	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	2109000
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	4187000
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	598100000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	87047000
CY2018	us-gaap	Net Income Loss NetIncomeLoss	80411000
CY2017	us-gaap	Net Income Loss NetIncomeLoss	57330000
CY2019	us-gaap	Depreciation Depreciation	5930000
CY2018	us-gaap	Depreciation Depreciation	5654000
CY2017	us-gaap	Depreciation Depreciation	5119000
CY2019	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	3235000
CY2018	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	6400000
CY2017	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	3000000
CY2019	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	0
CY2018	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-16000
CY2017	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-12000
CY2019	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	66008000
CY2018	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	49816000
CY2018	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-1000
CY2017	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-79000
CY2019	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	142000
CY2018	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	-50000
CY2017	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	32000
CY2019	lkfn	Amortization Of Available For Sale Debt Securities AmortizationOfAvailableForSaleDebtSecurities	3947000
CY2018	lkfn	Amortization Of Available For Sale Debt Securities AmortizationOfAvailableForSaleDebtSecurities	3177000
CY2017	lkfn	Amortization Of Available For Sale Debt Securities AmortizationOfAvailableForSaleDebtSecurities	3114000
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	4187000
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	5608000
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	5698000
CY2019	lkfn	Earning On Life Insurance EarningOnLifeInsurance	1890000
CY2018	lkfn	Earning On Life Insurance EarningOnLifeInsurance	1244000
CY2017	lkfn	Earning On Life Insurance EarningOnLifeInsurance	1768000
CY2019	lkfn	Gain On Life Insurance GainOnLifeInsurance	841000
CY2018	lkfn	Gain On Life Insurance GainOnLifeInsurance	206000
CY2017	lkfn	Gain On Life Insurance GainOnLifeInsurance	0
CY2019	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	529000
CY2017	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	10000
CY2019	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	14000
CY2018	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	461000
CY2018	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	761000
CY2017	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	40877000
CY2019	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	67818000
CY2018	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	53817000
CY2017	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	61745000
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	100039000
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	104975000
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	77242000
CY2019	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	57114000
CY2018	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	15302000
CY2017	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	964000
CY2019	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	4733000
CY2018	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	3301000
CY2017	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-787000
CY2019	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	6534000
CY2018	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	8481000
CY2017	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	2584000
CY2019	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	12992000
CY2018	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	24564000
CY2017	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	19912000
CY2019	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	129453000
CY2018	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	126551000
CY2017	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	139252000
CY2019	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	5552000
CY2018	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	423000
CY2017	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	580000
CY2019	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	152119000
CY2018	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	101670000
CY2017	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	347217000
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	7998000
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	7968000
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	9582000
CY2019	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	0
CY2018	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	0
CY2017	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	2250000
CY2019	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	0
CY2018	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	21000
CY2017	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	199000
CY2019	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	1483000
CY2018	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	569000
CY2017	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	0
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-168693000
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-166442000
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-396050000
CY2019	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	89754000
CY2018	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	35410000
CY2017	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	430743000
CY2019	lkfn	Proceeds From Short Term Fhlbank Borrowings ProceedsFromShortTermFhlbankBorrowings	0
CY2019	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-75555000
CY2018	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	174903000
CY2017	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	20607000
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	176180000
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	167280000
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	515000
CY2018	lkfn	Proceeds From Short Term Fhlbank Borrowings ProceedsFromShortTermFhlbankBorrowings	0
CY2017	lkfn	Proceeds From Short Term Fhlbank Borrowings ProceedsFromShortTermFhlbankBorrowings	80000000
CY2019	lkfn	Payments On Short Term Fhlbank Borrowings PaymentsOnShortTermFhlbankBorrowings	0
CY2018	lkfn	Payments On Short Term Fhlbank Borrowings PaymentsOnShortTermFhlbankBorrowings	80000000
CY2017	lkfn	Payments On Short Term Fhlbank Borrowings PaymentsOnShortTermFhlbankBorrowings	180000000
CY2019	lkfn	Payments On Long Term Fhlb Borrowings PaymentsOnLongTermFhlbBorrowings	0
CY2018	lkfn	Payments On Long Term Fhlb Borrowings PaymentsOnLongTermFhlbBorrowings	30000
CY2017	lkfn	Payments On Long Term Fhlb Borrowings PaymentsOnLongTermFhlbBorrowings	2000
CY2019	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	30928000
CY2018	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	0
CY2017	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	0
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	29639000
CY2018	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	25278000
CY2017	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	21396000
CY2019	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	13000
CY2018	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	13000
CY2017	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	13000
CY2019	lkfn	Proceeds From Repayment Of Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromRepaymentOfIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	-2109000
CY2018	lkfn	Proceeds From Repayment Of Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromRepaymentOfIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	-2435000
CY2017	lkfn	Proceeds From Repayment Of Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromRepaymentOfIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	-1736000
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	463000
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	495000
CY2019	us-gaap	Proceeds From Sale Of Treasury Stock ProceedsFromSaleOfTreasuryStock	118000
CY2018	us-gaap	Proceeds From Sale Of Treasury Stock ProceedsFromSaleOfTreasuryStock	115000
CY2017	us-gaap	Proceeds From Sale Of Treasury Stock ProceedsFromSaleOfTreasuryStock	0
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-48887000
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	102209000
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	327708000
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-117541000
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	40742000
CY2017	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	8900000
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	216922000
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	99381000
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	216922000
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	176180000
CY2019	us-gaap	Interest Paid InterestPaid	58964000
CY2018	us-gaap	Interest Paid InterestPaid	43606000
CY2017	us-gaap	Interest Paid InterestPaid	29171000
CY2019	us-gaap	Income Taxes Paid IncomeTaxesPaid	21035000
CY2018	us-gaap	Income Taxes Paid IncomeTaxesPaid	19033000
CY2017	us-gaap	Income Taxes Paid IncomeTaxesPaid	29120000
CY2019	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	0
CY2018	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	316000
CY2017	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	88000
CY2019	lkfn	Property Transferred To Held For Sale PropertyTransferredToHeldForSale	0
CY2018	lkfn	Property Transferred To Held For Sale PropertyTransferredToHeldForSale	221000
CY2017	lkfn	Property Transferred To Held For Sale PropertyTransferredToHeldForSale	0
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	5483000
CY2018	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0
CY2017	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0
CY2019	us-gaap	Use Of Estimates UseOfEstimates	<p style="font-family:'Times New Roman';font-size:10pt;font-weight:bold;margin:0pt 0pt 12pt 0pt;">Use of Estimates:</p><p style="font-family:'Times New Roman';font-size:10pt;text-indent:36pt;margin:0pt 0pt 10pt 0pt;">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.</p>
CY2019Q4	lkfn	Accrued Interest On Loans AccruedInterestOnLoans	11500000
CY2018Q4	lkfn	Accrued Interest On Loans AccruedInterestOnLoans	11800000
CY2019Q4	us-gaap	Notes Receivable Net NotesReceivableNet	250000
CY2019Q4	us-gaap	Equity Method Investments EquityMethodInvestments	6700000
CY2018Q4	us-gaap	Equity Method Investments EquityMethodInvestments	7000000.0
CY2019Q4	us-gaap	Cash Available For Distributions CashAvailableForDistributions	1600000
CY2018Q4	us-gaap	Cash Available For Distributions CashAvailableForDistributions	2100000
CY2018Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	316000
CY2019Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	316000
CY2019	us-gaap	Contractually Specified Servicing Fees Amount ContractuallySpecifiedServicingFeesAmount	1100000
CY2018	us-gaap	Contractually Specified Servicing Fees Amount ContractuallySpecifiedServicingFeesAmount	1100000
CY2017	us-gaap	Contractually Specified Servicing Fees Amount ContractuallySpecifiedServicingFeesAmount	1000000.0
CY2019Q4	lkfn	Mortgage Loans On Real Estate Carrying Value MortgageLoansOnRealEstateCarryingValue	3800000
CY2018Q4	lkfn	Mortgage Loans On Real Estate Carrying Value MortgageLoansOnRealEstateCarryingValue	3300000
CY2019Q4	us-gaap	Mortgage Loans On Real Estate MortgageLoansOnRealEstate	337900000
CY2018Q4	us-gaap	Mortgage Loans On Real Estate MortgageLoansOnRealEstate	343500000
CY2019Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	178741
CY2018Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	172959
CY2019Q4	lkfn	Cash On Hand Or On Deposit Requirement CashOnHandOrOnDepositRequirement	28900000
CY2018Q4	lkfn	Cash On Hand Or On Deposit Requirement CashOnHandOrOnDepositRequirement	6400000
CY2019	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<p style="font-family:'Times New Roman';font-size:10pt;font-weight:bold;margin:0pt 0pt 12pt 0pt;">Reclassifications:</p><p style="font-family:'Times New Roman';font-size:10pt;text-indent:36pt;margin:0pt;">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.</p>
CY2019Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	591009000
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Before Tax1 AccumulatedOtherComprehensiveIncomeLossBeforeTax1	17841000
CY2019Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	617000
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	608233000
CY2018Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	591621000
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Before Tax1 AccumulatedOtherComprehensiveIncomeLossBeforeTax1	2795000
CY2018Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	8867000
CY2018Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	585549000
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	4587000
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	4610000
CY2019Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	591009000
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	608233000
CY2019	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	57114000
CY2018	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	15302000
CY2017	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	40877000
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	15115000
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	15453000
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	24962000
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	26061000
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	225816000
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	236956000
CY2019Q4	lkfn	Available For Sale Securities With Maturities Amortized Cost AvailableForSaleSecuritiesWithMaturitiesAmortizedCost	270480000
CY2019Q4	lkfn	Available For Sale Securities With Maturities Fair Value AvailableForSaleSecuritiesWithMaturitiesFairValue	283080000
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost	320529000
CY2019Q4	us-gaap	Mortgage Backed Securities Available For Sale Fair Value Disclosure MortgageBackedSecuritiesAvailableForSaleFairValueDisclosure	325153000
CY2019	us-gaap	Debt Securities Available For Sale Realized Gain Loss Excluding Other Than Temporary Impairment DebtSecuritiesAvailableForSaleRealizedGainLossExcludingOtherThanTemporaryImpairment	279000
CY2018	us-gaap	Debt Securities Available For Sale Realized Gain Loss Excluding Other Than Temporary Impairment DebtSecuritiesAvailableForSaleRealizedGainLossExcludingOtherThanTemporaryImpairment	21000
CY2017	us-gaap	Debt Securities Available For Sale Realized Gain Loss Excluding Other Than Temporary Impairment DebtSecuritiesAvailableForSaleRealizedGainLossExcludingOtherThanTemporaryImpairment	267000
CY2019	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	137000
CY2018	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	71000
CY2017	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	235000
CY2019	lkfn	Number Of Debt Securities Available For Sale Sold At Fair Value NumberOfDebtSecuritiesAvailableForSaleSoldAtFairValue	46
CY2018	lkfn	Number Of Debt Securities Available For Sale Sold At Fair Value NumberOfDebtSecuritiesAvailableForSaleSoldAtFairValue	29
CY2017	lkfn	Number Of Debt Securities Available For Sale Sold At Fair Value NumberOfDebtSecuritiesAvailableForSaleSoldAtFairValue	50
CY2019Q4	us-gaap	Debt Securities Available For Sale Restricted DebtSecuritiesAvailableForSaleRestricted	59300000
CY2018Q4	us-gaap	Debt Securities Available For Sale Restricted DebtSecuritiesAvailableForSaleRestricted	164700000
CY2019Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	42215000
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	342000
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	14174000
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	275000
CY2019Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	56389000
CY2019Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	617000
CY2018Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	37848000
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	136000
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	346642000
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	8731000
CY2018Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	384490000
CY2018Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	8867000
CY2018Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	247
CY2019Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	4015176000
CY2018Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	3866292000
CY2019Q4	us-gaap	Mortgage Loans In Process Of Foreclosure Amount MortgageLoansInProcessOfForeclosureAmount	1600000
CY2018Q4	us-gaap	Mortgage Loans In Process Of Foreclosure Amount MortgageLoansInProcessOfForeclosureAmount	586000
CY2019Q4	lkfn	Number Of Available For Sale Securities In Unrealized Loss Positions Qualitative Disclosurem Number Of Positions Less Than12 Months NumberOfAvailableForSaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosuremNumberOfPositionsLessThan12Months	19
CY2019Q4	lkfn	Number Of Available For Sale Securities In Unrealized Loss Positions Qualitative Disclosurem Number Of Positions12 Months Or More NumberOfAvailableForSaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosuremNumberOfPositions12MonthsOrMore	6
CY2019Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	25
CY2018Q4	lkfn	Number Of Available For Sale Securities In Unrealized Loss Positions Qualitative Disclosurem Number Of Positions Less Than12 Months NumberOfAvailableForSaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosuremNumberOfPositionsLessThan12Months	40
CY2018Q4	lkfn	Number Of Available For Sale Securities In Unrealized Loss Positions Qualitative Disclosurem Number Of Positions12 Months Or More NumberOfAvailableForSaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosuremNumberOfPositions12MonthsOrMore	207
CY2019Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	4067385000
CY2018Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	3916326000
CY2019Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	50652000
CY2018Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	48453000
CY2019Q4	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	1557000
CY2018Q4	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	1581000
CY2018Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	48453000
CY2019	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	3235000
CY2019	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	1910000
CY2019	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	874000
CY2019	lkfn	Allowance For Loan And Lease Losses Write Offs After Recoveries AllowanceForLoanAndLeaseLossesWriteOffsAfterRecoveries	1036000
CY2019Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	50652000
CY2017Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	47121000
CY2018	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	6400000
CY2018	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	6111000
CY2018	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	1043000
CY2018	lkfn	Allowance For Loan And Lease Losses Write Offs After Recoveries AllowanceForLoanAndLeaseLossesWriteOffsAfterRecoveries	5068000
CY2018Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	48453000
CY2016Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	43718000
CY2017	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	3000000
CY2017	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	1560000
CY2017	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	1963000
CY2017	lkfn	Allowance For Loan And Lease Losses Write Offs After Recoveries AllowanceForLoanAndLeaseLossesWriteOffsAfterRecoveries	-403000
CY2017Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	47121000
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	10384000
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	40268000
CY2019Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	50652000
CY2019Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	27829000
CY2019Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	4037999000
CY2019Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	4065828000
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	10029000
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	38424000
CY2018Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	48453000
CY2018Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	26717000
CY2018Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	3888028000
CY2018Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	3914745000
CY2019Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	30422000
CY2019Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	27829000
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	10384000
CY2018Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	32194000
CY2018Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	26717000
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	10029000
CY2019	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	26464000
CY2019	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	770000
CY2019	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	651000
CY2018	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	18035000
CY2018	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	442000
CY2018	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	306000
CY2017	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	18570000
CY2017	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	584000
CY2017	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	549000
CY2019Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	4045634000
CY2019Q4	lkfn	Loans Receivable Recorded Investment30 To89 Days Past Due LoansReceivableRecordedInvestment30To89DaysPastDue	1474000
CY2019Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	45000
CY2019Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	18675000
CY2019Q4	lkfn	Financing Receivable Recorded Investment Past Due And Nonaccrual Status FinancingReceivableRecordedInvestmentPastDueAndNonaccrualStatus	20194000
CY2019Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	4065828000
CY2018Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	3897455000
CY2018Q4	lkfn	Loans Receivable Recorded Investment30 To89 Days Past Due LoansReceivableRecordedInvestment30To89DaysPastDue	10025000
CY2018Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	0
CY2018Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	7265000
CY2018Q4	lkfn	Financing Receivable Recorded Investment Past Due And Nonaccrual Status FinancingReceivableRecordedInvestmentPastDueAndNonaccrualStatus	17290000
CY2018Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	3914745000
CY2019Q4	lkfn	Loans Modified In Troubled Debt Restructured Loans LoansModifiedInTroubledDebtRestructuredLoans	2500000
CY2018Q4	lkfn	Loans Modified In Troubled Debt Restructured Loans LoansModifiedInTroubledDebtRestructuredLoans	3700000
CY2019	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	1
CY2019Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	4065828000
CY2018Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	3914745000
CY2019Q4	lkfn	Loans Receivable Accruing Troubled Debt Restructured Loans LoansReceivableAccruingTroubledDebtRestructuredLoans	5909000
CY2018Q4	lkfn	Loans Receivable Accruing Troubled Debt Restructured Loans LoansReceivableAccruingTroubledDebtRestructuredLoans	8016000
CY2019Q4	lkfn	Loans Receivable Nonaccrual Troubled Debt Restructured Loans LoansReceivableNonaccrualTroubledDebtRestructuredLoans	3188000
CY2018Q4	lkfn	Loans Receivable Nonaccrual Troubled Debt Restructured Loans LoansReceivableNonaccrualTroubledDebtRestructuredLoans	4384000
CY2019Q4	lkfn	Financing Receivable Modifications FinancingReceivableModifications	9097000
CY2018Q4	lkfn	Financing Receivable Modifications FinancingReceivableModifications	12400000
CY2019	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	601000
CY2018	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	0
CY2018	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	0
CY2018	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	0
CY2017	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	0
CY2019	lkfn	Loan Amount Of Credit Quality Analysis LoanAmountOfCreditQualityAnalysis	250000
CY2019Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	4400000
CY2019	lkfn	Percentage Of Discount From Appraised Value PercentageOfDiscountFromAppraisedValue	0.039
CY2019	lkfn	Weighted Average Maturity Of Residential Mortgages WeightedAverageMaturityOfResidentialMortgages	P20Y
CY2019	us-gaap	Servicing Assets And Servicing Liabilities At Fair Value Assumptions Used To Estimate Fair Value Qualitative Information ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueQualitativeInformation	118
CY2019	us-gaap	Servicing Assets And Servicing Liabilities At Fair Value Assumptions Used To Estimate Fair Value Discount Rate ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate	0.094
CY2018	us-gaap	Servicing Assets And Servicing Liabilities At Fair Value Assumptions Used To Estimate Fair Value Qualitative Information ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueQualitativeInformation	81
CY2018	us-gaap	Servicing Assets And Servicing Liabilities At Fair Value Assumptions Used To Estimate Fair Value Discount Rate ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate	0.094
CY2019Q4	us-gaap	Land Land	12511000
CY2018Q4	us-gaap	Land Land	12302000
CY2019Q4	lkfn	Premises And Improvements Gross PremisesAndImprovementsGross	53213000
CY2018Q4	lkfn	Premises And Improvements Gross PremisesAndImprovementsGross	49064000
CY2019Q4	lkfn	Equipment And Furniture Gross EquipmentAndFurnitureGross	38691000
CY2018Q4	lkfn	Equipment And Furniture Gross EquipmentAndFurnitureGross	36111000
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	104415000
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	97477000
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	44261000
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	39380000
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	60154000
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	58097000
CY2019Q4	us-gaap	Goodwill Gross GoodwillGross	5000000.0
CY2019Q4	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	29747000
CY2019Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	983307000
CY2018Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	946838000
CY2019Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	234508000
CY2018Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	247903000
CY2019Q4	lkfn	Other Time Deposits OtherTimeDeposits	281934000
CY2018Q4	lkfn	Other Time Deposits OtherTimeDeposits	273533000
CY2019Q4	lkfn	Time Deposits100000 To250000 TimeDeposits100000To250000	291805000
CY2018Q4	lkfn	Time Deposits100000 To250000 TimeDeposits100000To250000	268058000
CY2019Q4	lkfn	Timedeposits250000 Ormore Timedeposits250000Ormore	618328000
CY2018Q4	lkfn	Timedeposits250000 Ormore Timedeposits250000Ormore	878163000
CY2019Q4	us-gaap	Deposits Deposits	4133819000
CY2018Q4	us-gaap	Deposits Deposits	4044065000
CY2019Q4	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	895601000
CY2019Q4	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	206303000
CY2019Q4	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	35181000
CY2019Q4	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	23143000
CY2019Q4	us-gaap	Time Deposit Maturities After Year Five TimeDepositMaturitiesAfterYearFive	2092000
CY2019Q4	us-gaap	Time Deposits TimeDeposits	1192067000
CY2019Q4	lkfn	Deposits Available To Bank DepositsAvailableToBank	200000000.0
CY2019Q4	lkfn	Amount Of Deposits Drawn AmountOfDepositsDrawn	75100000
CY2019Q4	us-gaap	Other Short Term Borrowings OtherShortTermBorrowings	170000000
CY2018Q4	us-gaap	Other Short Term Borrowings OtherShortTermBorrowings	170000000
CY2019Q4	us-gaap	Secured Debt SecuredDebt	170000000.0
CY2019Q4	lkfn	Pledged Financial Instruments Not Separately Reported Residential Mortgage Loans And Mortgage Related Securities Available For Sale For Federal Home Bank Debt PledgedFinancialInstrumentsNotSeparatelyReportedResidentialMortgageLoansAndMortgageRelatedSecuritiesAvailableForSaleForFederalHomeBankDebt	453200000
CY2018Q4	lkfn	Pledged Financial Instruments Not Separately Reported Residential Mortgage Loans And Mortgage Related Securities Available For Sale For Federal Home Bank Debt PledgedFinancialInstrumentsNotSeparatelyReportedResidentialMortgageLoansAndMortgageRelatedSecuritiesAvailableForSaleForFederalHomeBankDebt	412900000
CY2018Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	10400000
CY2019Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	10400000
CY2019Q4	lkfn	Borrowing Capacity Federal Home Loan Bank BorrowingCapacityFederalHomeLoanBank	800000000.0
CY2019Q4	us-gaap	Line Of Credit Facility Current Borrowing Capacity LineOfCreditFacilityCurrentBorrowingCapacity	115500000
CY2019Q4	lkfn	Pledged Financial Instruments Not Separately Reported Commercial Loans For Federal Reserve Bank Debt PledgedFinancialInstrumentsNotSeparatelyReportedCommercialLoansForFederalReserveBankDebt	446900000
CY2018Q4	lkfn	Pledged Financial Instruments Not Separately Reported Commercial Loans For Federal Reserve Bank Debt PledgedFinancialInstrumentsNotSeparatelyReportedCommercialLoansForFederalReserveBankDebt	381500000
CY2019Q4	lkfn	Borrowing Capacity Federal Reserve Bank BorrowingCapacityFederalReserveBank	339500000
CY2018Q4	lkfn	Borrowing Capacity Federal Reserve Bank BorrowingCapacityFederalReserveBank	286500000
CY2019Q4	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	325000000.0
CY2019	us-gaap	Schedule Of Repurchase Agreements ScheduleOfRepurchaseAgreements	<p style="font-family:'Times New Roman';font-size:10pt;text-indent:36pt;margin:0pt;"><span style="margin-bottom:12pt;visibility:hidden;"></span></p><table style="border-collapse:collapse;font-size:16pt;margin-left:auto;margin-right:auto;padding-left:0pt;padding-right:0pt;width:100%;"><tr style="height:1pt;"><td style="vertical-align:bottom;width:64.37%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><span style="font-size:1pt;visibility:hidden;"></span></p></div></div></td><td style="vertical-align:bottom;white-space:nowrap;width:1.89%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><span style="font-size:1pt;visibility:hidden;"></span></p></div></div></td><td style="vertical-align:bottom;white-space:nowrap;width:1.15%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><span style="font-size:1pt;visibility:hidden;"></span></p></div></div></td><td style="vertical-align:bottom;white-space:nowrap;width:7.91%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><span style="font-size:1pt;visibility:hidden;"></span></p></div></div></td><td style="vertical-align:bottom;white-space:nowrap;width:2.48%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><span style="font-size:1pt;visibility:hidden;"></span></p></div></div></td><td style="vertical-align:bottom;white-space:nowrap;width:1.15%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><span style="font-size:1pt;visibility:hidden;"></span></p></div></div></td><td style="vertical-align:bottom;white-space:nowrap;width:7.91%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><span style="font-size:1pt;visibility:hidden;"></span></p></div></div></td><td style="vertical-align:bottom;white-space:nowrap;width:2.48%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><span style="font-size:1pt;visibility:hidden;"></span></p></div></div></td><td style="vertical-align:bottom;white-space:nowrap;width:1.15%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><span style="font-size:1pt;visibility:hidden;"></span></p></div></div></td><td style="vertical-align:bottom;white-space:nowrap;width:7.91%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><span style="font-size:1pt;visibility:hidden;"></span></p></div></div></td><td style="vertical-align:bottom;white-space:nowrap;width:1.54%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><span style="font-size:1pt;visibility:hidden;"></span></p></div></div></td></tr><tr><td style="background-color:auto;vertical-align:bottom;width:64.37%;border-bottom:1.5pt solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;">(dollars in thousands)</p></td><td style="background-color:auto;vertical-align:bottom;white-space:nowrap;width:1.89%;border-bottom:1.5pt solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><b style="font-weight:bold;"> </b></p></td><td colspan="2" style="background-color:auto;vertical-align:bottom;white-space:nowrap;width:9.07%;border-bottom:1.5pt solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;text-align:center;margin:0pt 0pt 0.05pt 0pt;"><b style="font-weight:bold;">2019</b></p></td><td style="background-color:auto;vertical-align:bottom;white-space:nowrap;width:2.48%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"> </p></td><td colspan="2" style="background-color:auto;vertical-align:bottom;white-space:nowrap;width:9.07%;border-bottom:1.5pt solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;text-align:center;margin:0pt 0pt 0.05pt 0pt;">2018</p></td><td style="background-color:auto;vertical-align:bottom;white-space:nowrap;width:2.48%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"> </p></td><td colspan="2" style="background-color:auto;vertical-align:bottom;white-space:nowrap;width:9.07%;border-bottom:1.5pt solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;text-align:center;margin:0pt 0pt 0.05pt 0pt;">2017</p></td><td style="background-color:auto;vertical-align:bottom;white-space:nowrap;width:1.54%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"> </p></td></tr><tr><td style="background-color:auto;vertical-align:bottom;width:64.37%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;">Securities sold under agreements to repurchase</p></td><td style="background-color:auto;vertical-align:bottom;white-space:nowrap;width:1.89%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"> </p></td><td style="background-color:auto;vertical-align:bottom;white-space:nowrap;width:1.15%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><span style="visibility:hidden;"></span></p></td><td style="background-color:auto;vertical-align:bottom;white-space:nowrap;width:7.91%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;text-align:right;margin:0pt 3pt 0.05pt 0pt;"> </p></td><td style="background-color:auto;vertical-align:bottom;white-space:nowrap;width:2.48%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"> </p></td><td style="background-color:auto;vertical-align:bottom;white-space:nowrap;width:1.15%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><span style="visibility:hidden;"></span></p></td><td style="background-color:auto;vertical-align:bottom;white-space:nowrap;width:7.91%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;text-align:right;margin:0pt 3pt 0.05pt 0pt;"> </p></td><td style="background-color:auto;vertical-align:bottom;white-space:nowrap;width:2.48%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"> </p></td><td style="background-color:auto;vertical-align:bottom;white-space:nowrap;width:1.15%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><span style="visibility:hidden;"></span></p></td><td style="background-color:auto;vertical-align:bottom;white-space:nowrap;width:7.91%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;text-align:right;margin:0pt 3pt 0.05pt 0pt;"> </p></td><td style="background-color:auto;vertical-align:bottom;white-space:nowrap;width:1.54%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><span style="visibility:hidden;"></span></p></td></tr><tr><td style="background-color:#cceeff;vertical-align:bottom;width:64.37%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 6pt;">Outstanding at year end</p></td><td style="background-color:#cceeff;vertical-align:bottom;white-space:nowrap;width:1.89%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><span style="font-weight:bold;visibility:hidden;"></span></p></td><td style="background-color:#cceeff;vertical-align:bottom;white-space:nowrap;width:1.15%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><b style="font-weight:bold;">$</b></p></td><td style="background-color:#cceeff;vertical-align:bottom;white-space:nowrap;width:7.91%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;text-align:right;margin:0pt 3pt 0.05pt 0pt;"><b style="font-weight:bold;"> 0</b></p></td><td style="background-color:#cceeff;vertical-align:bottom;white-space:nowrap;width:2.48%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><span style="visibility:hidden;"></span></p></td><td style="background-color:#cceeff;vertical-align:bottom;white-space:nowrap;width:1.15%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;">$</p></td><td style="background-color:#cceeff;vertical-align:bottom;white-space:nowrap;width:7.91%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;text-align:right;margin:0pt 3pt 0.05pt 0pt;"> 75,555</p></td><td style="background-color:#cceeff;vertical-align:bottom;white-space:nowrap;width:2.48%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><span style="visibility:hidden;"></span></p></td><td style="background-color:#cceeff;vertical-align:bottom;white-space:nowrap;width:1.15%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;">$</p></td><td style="background-color:#cceeff;vertical-align:bottom;white-space:nowrap;width:7.91%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;text-align:right;margin:0pt 3pt 0.05pt 0pt;"> 70,652</p></td><td style="background-color:#cceeff;vertical-align:bottom;white-space:nowrap;width:1.54%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><span style="visibility:hidden;"></span></p></td></tr><tr><td style="vertical-align:bottom;width:64.37%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 6pt;">Approximate average interest rate at year end</p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.89%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><span style="font-weight:bold;visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.15%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><b style="font-weight:bold;"> </b></p></td><td style="vertical-align:bottom;white-space:nowrap;width:7.91%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;text-align:right;margin:0pt 3pt 0.05pt 0pt;"><b style="font-weight:bold;"> 0.00</b></p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.48%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;">% </p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.15%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:7.91%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;text-align:right;margin:0pt 3pt 0.05pt 0pt;"> 0.74</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.48%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;">% </p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.15%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:7.91%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;text-align:right;margin:0pt 3pt 0.05pt 0pt;"> 0.46</p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.54%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;">%</p></td></tr><tr><td style="background-color:#cceeff;vertical-align:bottom;width:64.37%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 6pt;">Highest amount outstanding as of any month end during the year</p></td><td style="background-color:#cceeff;vertical-align:bottom;white-space:nowrap;width:1.89%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><span style="font-weight:bold;visibility:hidden;"></span></p></td><td style="background-color:#cceeff;vertical-align:bottom;white-space:nowrap;width:1.15%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><b style="font-weight:bold;">$</b></p></td><td style="background-color:#cceeff;vertical-align:bottom;white-space:nowrap;width:7.91%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;text-align:right;margin:0pt 3pt 0.05pt 0pt;"><b style="font-weight:bold;"> 72,814</b></p></td><td style="background-color:#cceeff;vertical-align:bottom;white-space:nowrap;width:2.48%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><span style="visibility:hidden;"></span></p></td><td style="background-color:#cceeff;vertical-align:bottom;white-space:nowrap;width:1.15%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;">$</p></td><td style="background-color:#cceeff;vertical-align:bottom;white-space:nowrap;width:7.91%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;text-align:right;margin:0pt 3pt 0.05pt 0pt;"> 106,239</p></td><td style="background-color:#cceeff;vertical-align:bottom;white-space:nowrap;width:2.48%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><span style="visibility:hidden;"></span></p></td><td style="background-color:#cceeff;vertical-align:bottom;white-space:nowrap;width:1.15%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;">$</p></td><td style="background-color:#cceeff;vertical-align:bottom;white-space:nowrap;width:7.91%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;text-align:right;margin:0pt 3pt 0.05pt 0pt;"> 77,886</p></td><td style="background-color:#cceeff;vertical-align:bottom;white-space:nowrap;width:1.54%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><span style="visibility:hidden;"></span></p></td></tr><tr><td style="vertical-align:bottom;width:64.37%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 6pt;">Approximate average outstanding during the year</p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.89%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><span style="font-weight:bold;visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.15%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><b style="font-weight:bold;"> </b></p></td><td style="vertical-align:bottom;white-space:nowrap;width:7.91%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;text-align:right;margin:0pt 3pt 0.05pt 0pt;"><b style="font-weight:bold;"> 15,104</b></p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.48%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.15%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:7.91%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;text-align:right;margin:0pt 3pt 0.05pt 0pt;"> 86,874</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.48%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.15%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:7.91%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;text-align:right;margin:0pt 3pt 0.05pt 0pt;"> 63,379</p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.54%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><span style="visibility:hidden;"></span></p></td></tr><tr><td style="background-color:#cceeff;vertical-align:bottom;width:64.37%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 6pt;">Approximate average interest rate during the year</p></td><td style="background-color:#cceeff;vertical-align:bottom;white-space:nowrap;width:1.89%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><span style="font-weight:bold;visibility:hidden;"></span></p></td><td style="background-color:#cceeff;vertical-align:bottom;white-space:nowrap;width:1.15%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"><b style="font-weight:bold;"> </b></p></td><td style="background-color:#cceeff;vertical-align:bottom;white-space:nowrap;width:7.91%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;text-align:right;margin:0pt 3pt 0.05pt 0pt;"><b style="font-weight:bold;"> 0.86</b></p></td><td style="background-color:#cceeff;vertical-align:bottom;white-space:nowrap;width:2.48%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;">% </p></td><td style="background-color:#cceeff;vertical-align:bottom;white-space:nowrap;width:1.15%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"> </p></td><td style="background-color:#cceeff;vertical-align:bottom;white-space:nowrap;width:7.91%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;text-align:right;margin:0pt 3pt 0.05pt 0pt;"> 0.58</p></td><td style="background-color:#cceeff;vertical-align:bottom;white-space:nowrap;width:2.48%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;">% </p></td><td style="background-color:#cceeff;vertical-align:bottom;white-space:nowrap;width:1.15%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;"> </p></td><td style="background-color:#cceeff;vertical-align:bottom;white-space:nowrap;width:7.91%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;text-align:right;margin:0pt 3pt 0.05pt 0pt;"> 0.39</p></td><td style="background-color:#cceeff;vertical-align:bottom;white-space:nowrap;width:1.54%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 0.05pt 0pt;">%</p></td></tr></table>
CY2019Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	0
CY2018Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	75555000
CY2017Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	70652000
CY2019Q4	lkfn	Securities Sold Under Agreements To Repurchase Weighted Average Interest Rate SecuritiesSoldUnderAgreementsToRepurchaseWeightedAverageInterestRate	0.0000
CY2018Q4	lkfn	Securities Sold Under Agreements To Repurchase Weighted Average Interest Rate SecuritiesSoldUnderAgreementsToRepurchaseWeightedAverageInterestRate	0.0074
CY2017Q4	lkfn	Securities Sold Under Agreements To Repurchase Weighted Average Interest Rate SecuritiesSoldUnderAgreementsToRepurchaseWeightedAverageInterestRate	0.0046
CY2019Q4	lkfn	Securities Sold Under Agreements To Repurchase Maximum Month End Balance SecuritiesSoldUnderAgreementsToRepurchaseMaximumMonthEndBalance	72814000
CY2018Q4	lkfn	Securities Sold Under Agreements To Repurchase Maximum Month End Balance SecuritiesSoldUnderAgreementsToRepurchaseMaximumMonthEndBalance	106239000
CY2017Q4	lkfn	Securities Sold Under Agreements To Repurchase Maximum Month End Balance SecuritiesSoldUnderAgreementsToRepurchaseMaximumMonthEndBalance	77886000
CY2019	lkfn	Securities Sold Under Agreements To Repurchase Average Daily Balance SecuritiesSoldUnderAgreementsToRepurchaseAverageDailyBalance	15104000
CY2018	lkfn	Securities Sold Under Agreements To Repurchase Average Daily Balance SecuritiesSoldUnderAgreementsToRepurchaseAverageDailyBalance	86874000
CY2017	lkfn	Securities Sold Under Agreements To Repurchase Average Daily Balance SecuritiesSoldUnderAgreementsToRepurchaseAverageDailyBalance	63379000
CY2019	lkfn	Securities Sold Under Agreements To Repurchase Average Interest Rate SecuritiesSoldUnderAgreementsToRepurchaseAverageInterestRate	0.0086
CY2018	lkfn	Securities Sold Under Agreements To Repurchase Average Interest Rate SecuritiesSoldUnderAgreementsToRepurchaseAverageInterestRate	0.0058
CY2017	lkfn	Securities Sold Under Agreements To Repurchase Average Interest Rate SecuritiesSoldUnderAgreementsToRepurchaseAverageInterestRate	0.0039
	us-gaap	Proceeds From Issuance Of Trust Preferred Securities ProceedsFromIssuanceOfTrustPreferredSecurities	30000000.0
	lkfn	Proceeds From Issuance Of Subordinated Debentures ProceedsFromIssuanceOfSubordinatedDebentures	30900000
CY2019	lkfn	Investment In Common Stock InvestmentInCommonStock	0
CY2018	lkfn	Investment In Common Stock InvestmentInCommonStock	928000
CY2019Q4	lkfn	Integral Multiple Subordinated Debentures May Be Redeemed In IntegralMultipleSubordinatedDebenturesMayBeRedeemedIn	1000
CY2019Q4	lkfn	Percentage Of Principal Amount Subordinated Debentures May Be Redeemed At PercentageOfPrincipalAmountSubordinatedDebenturesMayBeRedeemedAt	1
CY2019Q4	us-gaap	Payments For Repurchase Of Trust Preferred Securities PaymentsForRepurchaseOfTrustPreferredSecurities	30000000.0
CY2019Q4	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	928000
CY2019Q4	lkfn	Percentage Of Principal Amount Subordinated Debentures May Be Redeemed At PercentageOfPrincipalAmountSubordinatedDebenturesMayBeRedeemedAt	1
CY2019Q4	us-gaap	Debt Instrument Redemption Price Percentage Of Principal Amount Redeemed DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed	1
CY2019Q4	us-gaap	Debt Instrument Redemption Price Percentage DebtInstrumentRedemptionPricePercentage	1
CY2018	lkfn	Trust Preferred Securities And Subordinated Debentures Description Of Variable Rate Basis TrustPreferredSecuritiesAndSubordinatedDebenturesDescriptionOfVariableRateBasis	(“LIBOR”) plus 3.05%
CY2018Q4	lkfn	Trust Preferred Securities And Subordinated Debentures Floating Rate Of Interest TrustPreferredSecuritiesAndSubordinatedDebenturesFloatingRateOfInterest	0.0585
CY2017	lkfn	Noncash Nonoperating And Nonrecurring Income Tax Provision NoncashNonoperatingAndNonrecurringIncomeTaxProvision	4100000
CY2018	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-408000
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	19430000
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	16871000
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	27064000
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-408000
CY2019	lkfn	Potential Cash Payments Under Employment Agreements PotentialCashPaymentsUnderEmploymentAgreements	5300000
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	707000
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-199000
CY2019	us-gaap	Deferred Other Tax Expense Benefit DeferredOtherTaxExpenseBenefit	0
CY2018	us-gaap	Deferred Other Tax Expense Benefit DeferredOtherTaxExpenseBenefit	-408000
CY2017	us-gaap	Deferred Other Tax Expense Benefit DeferredOtherTaxExpenseBenefit	4137000
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1394000
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1462000
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1559000
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-78000
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-99000
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-257000
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	20338000
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	18533000
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	32304000
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	22551000
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	20778000
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	31372000
CY2019	lkfn	Interest Income Securitie Tax Exempt InterestIncomeSecuritieTaxExempt	1682000
CY2018	lkfn	Interest Income Securitie Tax Exempt InterestIncomeSecuritieTaxExempt	1434000
CY2017	lkfn	Interest Income Securitie Tax Exempt InterestIncomeSecuritieTaxExempt	2015000
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	194000
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	165000
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	193000
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1040000
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1077000
CY2017	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	846000
CY2019	lkfn	Income Tax Reconciliation Deductions Captive Insurance Premium Income IncomeTaxReconciliationDeductionsCaptiveInsurancePremiumIncome	310000
CY2018	lkfn	Income Tax Reconciliation Deductions Captive Insurance Premium Income IncomeTaxReconciliationDeductionsCaptiveInsurancePremiumIncome	292000
CY2017	lkfn	Income Tax Reconciliation Deductions Captive Insurance Premium Income IncomeTaxReconciliationDeductionsCaptiveInsurancePremiumIncome	378000
CY2019	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	548000
CY2018	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	412000
CY2017	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	326000
CY2019	us-gaap	Income Tax Reconciliation Deductions Other IncomeTaxReconciliationDeductionsOther	573000
CY2018	us-gaap	Income Tax Reconciliation Deductions Other IncomeTaxReconciliationDeductionsOther	303000
CY2017	us-gaap	Income Tax Reconciliation Deductions Other IncomeTaxReconciliationDeductionsOther	619000
CY2019	lkfn	Effective Income Tax Rate Reconciliation Deduction Long Term Incentive Plan Amount EffectiveIncomeTaxRateReconciliationDeductionLongTermIncentivePlanAmount	421000
CY2018	lkfn	Effective Income Tax Rate Reconciliation Deduction Long Term Incentive Plan Amount EffectiveIncomeTaxRateReconciliationDeductionLongTermIncentivePlanAmount	641000
CY2017	lkfn	Effective Income Tax Rate Reconciliation Deduction Long Term Incentive Plan Amount EffectiveIncomeTaxRateReconciliationDeductionLongTermIncentivePlanAmount	854000
CY2019	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	0
CY2018	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-408000
CY2017	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	4137000
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	87000
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	3000
CY2017	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-52000
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	20338000
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	18533000
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	32304000
CY2019Q4	lkfn	Deferred Tax Assets Bad Debts DeferredTaxAssetsBadDebts	12945000
CY2018Q4	lkfn	Deferred Tax Assets Bad Debts DeferredTaxAssetsBadDebts	12478000
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	1505000
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	1188000
CY2019Q4	lkfn	Deferred Tax Assets Nonaccrual Loan Interest DeferredTaxAssetsNonaccrualLoanInterest	1104000
CY2018Q4	lkfn	Deferred Tax Assets Nonaccrual Loan Interest DeferredTaxAssetsNonaccrualLoanInterest	937000
CY2019Q4	lkfn	Deferred Tax Assets Long Term Incentive Plan DeferredTaxAssetsLongTermIncentivePlan	2281000
CY2018Q4	lkfn	Deferred Tax Assets Long Term Incentive Plan DeferredTaxAssetsLongTermIncentivePlan	2357000
CY2019Q4	lkfn	Deferred Tax Assets Lease Liability DeferredTaxAssetsLeaseLiability	1303000
CY2018Q4	lkfn	Deferred Tax Assets Lease Liability DeferredTaxAssetsLeaseLiability	0
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	510000
CY2018Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	506000
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	19648000
CY2018Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	17466000
CY2019Q4	lkfn	Deferred Tax Liabilities Depreciation DeferredTaxLiabilitiesDepreciation	4741000
CY2018Q4	lkfn	Deferred Tax Liabilities Depreciation DeferredTaxLiabilitiesDepreciation	4583000
CY2019Q4	us-gaap	Deferred Tax Liabilities Mortgage Servicing Rights DeferredTaxLiabilitiesMortgageServicingRights	1019000
CY2018Q4	us-gaap	Deferred Tax Liabilities Mortgage Servicing Rights DeferredTaxLiabilitiesMortgageServicingRights	877000
CY2019Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	83980000
CY2018Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	83546000
CY2019Q4	lkfn	Deferred Tax Liabilities State Taxes DeferredTaxLiabilitiesStateTaxes	464000
CY2018Q4	lkfn	Deferred Tax Liabilities State Taxes DeferredTaxLiabilitiesStateTaxes	447000
CY2019Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	1270000
CY2018Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	1280000
CY2019Q4	lkfn	Deferred Tax Liabilities Spill Over Dividend DeferredTaxLiabilitiesSpillOverDividend	1401000
CY2018Q4	lkfn	Deferred Tax Liabilities Spill Over Dividend DeferredTaxLiabilitiesSpillOverDividend	1231000
CY2019Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	795000
CY2018Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	786000
CY2019Q4	lkfn	Deferred Tax Liabilities Lease Right Of Use Assets DeferredTaxLiabilitiesLeaseRightOfUseAssets	1303000
CY2018Q4	lkfn	Deferred Tax Liabilities Lease Right Of Use Assets DeferredTaxLiabilitiesLeaseRightOfUseAssets	0
CY2019Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	382000
CY2018Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	475000
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	11375000
CY2018Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	9679000
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0
CY2019Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	8273000
CY2018Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	7787000
CY2019Q4	lkfn	Deferred Tax Assets Unrealized Gain Losses On Available For Sale Securities Gross DeferredTaxAssetsUnrealizedGainLossesOnAvailableForSaleSecuritiesGross	-3600000
CY2018Q4	lkfn	Deferred Tax Assets Unrealized Gain Losses On Available For Sale Securities Gross DeferredTaxAssetsUnrealizedGainLossesOnAvailableForSaleSecuritiesGross	1300000
CY2019Q4	lkfn	Deferred Tax Liabilities Allocated To Benefit Plan DeferredTaxLiabilitiesAllocatedToBenefitPlan	512000
CY2018Q4	lkfn	Deferred Tax Liabilities Allocated To Benefit Plan DeferredTaxLiabilitiesAllocatedToBenefitPlan	462000
CY2018Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	83546000
CY2017Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	105242000
CY2019	us-gaap	Loans And Leases Receivable Related Parties Additions LoansAndLeasesReceivableRelatedPartiesAdditions	55465000
CY2018	us-gaap	Loans And Leases Receivable Related Parties Additions LoansAndLeasesReceivableRelatedPartiesAdditions	94542000
CY2019	lkfn	Effect Of Changes In Related Parties EffectOfChangesInRelatedParties	-5967000
CY2018	lkfn	Effect Of Changes In Related Parties EffectOfChangesInRelatedParties	0
CY2019	us-gaap	Loans And Leases Receivable Related Parties Proceeds LoansAndLeasesReceivableRelatedPartiesProceeds	49064000
CY2018	us-gaap	Loans And Leases Receivable Related Parties Proceeds LoansAndLeasesReceivableRelatedPartiesProceeds	116238000
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	44000
CY2019Q4	us-gaap	Due To Related Parties Current And Noncurrent DueToRelatedPartiesCurrentAndNoncurrent	33300000
CY2019Q4	lkfn	Additional Amount Due To Related Parties Current And Non Current AdditionalAmountDueToRelatedPartiesCurrentAndNonCurrent	0
CY2018Q4	us-gaap	Due To Related Parties Current And Noncurrent DueToRelatedPartiesCurrentAndNoncurrent	12100000
CY2018Q4	lkfn	Additional Amount Due To Related Parties Current And Non Current AdditionalAmountDueToRelatedPartiesCurrentAndNonCurrent	1900000
CY2008Q2	lkfn	Share Based Compensation Shares Authorized Under Equity Incentive Plans ShareBasedCompensationSharesAuthorizedUnderEquityIncentivePlans	1125000
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	684926
CY2019	us-gaap	Employee Stock Ownership Plan Esop Compensation Expense EmployeeStockOwnershipPlanESOPCompensationExpense	4200000
CY2018	us-gaap	Employee Stock Ownership Plan Esop Compensation Expense EmployeeStockOwnershipPlanESOPCompensationExpense	5600000
CY2017	us-gaap	Employee Stock Ownership Plan Esop Compensation Expense EmployeeStockOwnershipPlanESOPCompensationExpense	5700000
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1100000
CY2018	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1500000
CY2017	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	2200000
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0
CY2017	lkfn	Share Based Compensation Arrangement By Share Based Payment Award Plan Modification ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModification	0
CY2018	lkfn	Share Based Compensation Arrangement By Share Based Payment Award Plan Modification ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModification	0
CY2019	lkfn	Share Based Compensation Arrangement By Share Based Payment Award Plan Modification ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModification	0
CY2019Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Stock Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions	0
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	0
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	243000
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	0
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	118000
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	24000
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	0
CY2018	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	0
CY2017	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	0
CY2019	us-gaap	Description Of Regulatory Requirements Capital Adequacy Purposes DescriptionOfRegulatoryRequirementsCapitalAdequacyPurposes	Under the Basel III rules, the Company must hold a capital conservation buffer above the adequately capitalized risk-based capital ratios. The capital conservation buffer is being phased in from 0.000% for 2015 to 2.50% by 2019. The capital conservation buffer for 2019 and 2018 was 2.50% and 1.875%, respectively. The net unrealized gain or loss on available-for-sale securities is not included in computing regulatory capital
CY2019Q4	us-gaap	Statutory Accounting Practices Statutory Amount Available For Dividend Payments StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPayments	89100000
CY2019Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	7263000
CY2019Q4	lkfn	Derivative Asset Gross Value Offset DerivativeAssetGrossValueOffset	0
CY2019Q4	lkfn	Derivative Asset Net Value Offset DerivativeAssetNetValueOffset	7263000
CY2019Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	0
CY2019Q4	lkfn	Derivativeassetcollateralobligationtoreturncashnotoffset Derivativeassetcollateralobligationtoreturncashnotoffset	0
CY2019Q4	us-gaap	Derivative Assets DerivativeAssets	7263000
CY2019Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	7860000
CY2019Q4	lkfn	Derivativeliabilitygrossvalueoffset Derivativeliabilitygrossvalueoffset	0
CY2019Q4	lkfn	Derivativeliabilitynetvalueoffset Derivativeliabilitynetvalueoffset	-7860000
CY2019Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	0
CY2019Q4	lkfn	Derivativeliabilitycollateralrighttoreclaimcashoffsets Derivativeliabilitycollateralrighttoreclaimcashoffsets	7560000
CY2019Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	300000
CY2018Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	3869000
CY2018Q4	lkfn	Derivative Asset Gross Value Offset DerivativeAssetGrossValueOffset	0
CY2018Q4	lkfn	Derivative Asset Net Value Offset DerivativeAssetNetValueOffset	3869000
CY2018Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	0
CY2018Q4	lkfn	Derivativeassetcollateralobligationtoreturncashnotoffset Derivativeassetcollateralobligationtoreturncashnotoffset	760000
CY2018Q4	us-gaap	Derivative Assets DerivativeAssets	3109000
CY2018Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	79580000
CY2018Q4	lkfn	Derivativeliabilitygrossvalueoffset Derivativeliabilitygrossvalueoffset	0
CY2018Q4	lkfn	Derivativeliabilitynetvalueoffset Derivativeliabilitynetvalueoffset	-79580000
CY2018Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	75555000
CY2018Q4	lkfn	Derivativeliabilitycollateralrighttoreclaimcashoffsets Derivativeliabilitycollateralrighttoreclaimcashoffsets	560000
CY2018Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	3465000
CY2019	us-gaap	Loans And Leases Receivable Commitments Fixed Rates LoansAndLeasesReceivableCommitmentsFixedRates	44210000
CY2019	us-gaap	Loans And Leases Receivable Commitments Variable Rates LoansAndLeasesReceivableCommitmentsVariableRates	1790941000
CY2018	us-gaap	Loans And Leases Receivable Commitments Fixed Rates LoansAndLeasesReceivableCommitmentsFixedRates	67051000
CY2018	us-gaap	Loans And Leases Receivable Commitments Variable Rates LoansAndLeasesReceivableCommitmentsVariableRates	1674094000
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	25727831
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	25663381
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.38
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.40
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.18
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.28
CY2019	us-gaap	Net Income Loss NetIncomeLoss	87047000
CY2018	us-gaap	Net Income Loss NetIncomeLoss	80411000
CY2017	us-gaap	Net Income Loss NetIncomeLoss	57330000
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	25588404
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	25288533
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	25181208
CY2019	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	0
CY2018	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	225831
CY2019	us-gaap	Net Income Loss NetIncomeLoss	87047000
CY2018	us-gaap	Net Income Loss NetIncomeLoss	80411000
CY2017	us-gaap	Net Income Loss NetIncomeLoss	57330000
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	25588404
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	25288533
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	25181208
CY2017	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	219273
CY2019	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	170489
CY2018	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	213467
CY2017	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	262900
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	25758893
CY2018	lkfn	Accumulated Other Comprehensive Income Loss Available For Sale Securities Reclassification Adjustment Included In Net Income Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesReclassificationAdjustmentIncludedInNetIncomeNetOfTax	-39000
CY2018	lkfn	Accumulated Other Comprehensive Income Loss Defined Benefit Pension Reclassification Adjustment Included In Net Income Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionReclassificationAdjustmentIncludedInNetIncomeNetOfTax	-197000
CY2018	lkfn	Accumulated Other Comprehensive Income Loss Reclassification Adjustment Included In Net Income Net Of Tax AccumulatedOtherComprehensiveIncomeLossReclassificationAdjustmentIncludedInNetIncomeNetOfTax	236000
CY2018	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-5652000
CY2019	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax	52000
CY2019	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax	153000
CY2019	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-41000
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-50000
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-11000
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.13
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.23
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-4796000
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	-1395000
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-6191000
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Reclassification Adjustments And Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsAndTax	18515000
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Reclassification Adjustments And Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsAndTax	306000
CY2019	lkfn	Other Comprehensive Income Loss Adjustment Before Reclassification Adjustments And Tax OtherComprehensiveIncomeLossAdjustmentBeforeReclassificationAdjustmentsAndTax	-18209000
CY2019	lkfn	Accumulated Other Comprehensive Income Loss Available For Sale Securities Reclassification Adjustment Included In Net Income Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesReclassificationAdjustmentIncludedInNetIncomeNetOfTax	112000
CY2019	lkfn	Accumulated Other Comprehensive Income Loss Defined Benefit Pension Reclassification Adjustment Included In Net Income Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionReclassificationAdjustmentIncludedInNetIncomeNetOfTax	-153000
CY2019	lkfn	Accumulated Other Comprehensive Income Loss Reclassification Adjustment Included In Net Income Net Of Tax AccumulatedOtherComprehensiveIncomeLossReclassificationAdjustmentIncludedInNetIncomeNetOfTax	41000
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	18403000
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	153000
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	18250000
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	13607000
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	-1548000
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	12059000
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	784000
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	-1454000
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-670000
CY2018	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Reclassification Adjustments And Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsAndTax	-5691000
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Reclassification Adjustments And Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsAndTax	-175000
CY2018	lkfn	Other Comprehensive Income Loss Adjustment Before Reclassification Adjustments And Tax OtherComprehensiveIncomeLossAdjustmentBeforeReclassificationAdjustmentsAndTax	5516000
CY2018	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	-372000
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-5280000
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-4796000
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	-1395000
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-6191000
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	142000
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	30000
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	112000
CY2019	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	205000
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-39000
CY2018	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	266000
CY2018	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax	69000
CY2018	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax	197000
CY2018Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	50379000
CY2018Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	48795000
CY2018Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	46068000
CY2018Q4	us-gaap	Interest Expense InterestExpense	14138000
CY2018Q3	us-gaap	Interest Expense InterestExpense	12454000
CY2018	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-236000
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	32000
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	13000
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	19000
CY2017	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	265000
CY2017	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax	104000
CY2017	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax	161000
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5119000
CY2019Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5409000
CY2019Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4379000
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	22198000
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	21454000
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	21713000
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	21682000
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.86
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.84
CY2019Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	52312000
CY2019Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	54769000
CY2019Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	54635000
CY2019Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	53494000
CY2019Q4	us-gaap	Interest Expense InterestExpense	13430000
CY2019Q3	us-gaap	Interest Expense InterestExpense	15224000
CY2019Q2	us-gaap	Interest Expense InterestExpense	16224000
CY2019Q1	us-gaap	Interest Expense InterestExpense	15285000
CY2019Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	38882000
CY2019Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	39545000
CY2019Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	38411000
CY2019Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	38209000
CY2019Q4	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	250000
CY2019Q3	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	1000000
CY2019Q2	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	785000
CY2019Q1	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	1200000
CY2019Q4	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	38632000
CY2019Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	38545000
CY2019Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	37626000
CY2019Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	37009000
CY2019Q4	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	11119000
CY2019Q3	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	10765000
CY2019Q2	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	11588000
CY2019Q1	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	11525000
CY2019Q4	us-gaap	Noninterest Expense NoninterestExpense	22122000
CY2019Q3	us-gaap	Noninterest Expense NoninterestExpense	22737000
CY2019Q2	us-gaap	Noninterest Expense NoninterestExpense	22092000
CY2019Q1	us-gaap	Noninterest Expense NoninterestExpense	22473000
CY2019Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5431000
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.85
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.85
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.86
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.83
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.85
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.84
CY2018Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	53728000
CY2018Q2	us-gaap	Interest Expense InterestExpense	11262000
CY2018Q1	us-gaap	Interest Expense InterestExpense	9845000
CY2018Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	39590000
CY2018Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	37925000
CY2018Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	37533000
CY2018Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	36223000
CY2018Q4	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	300000
CY2018Q3	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	1100000
CY2018Q2	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	1700000
CY2018Q1	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	3300000
CY2018Q4	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	39290000
CY2018Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	36825000
CY2018Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	35833000
CY2018Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	32923000
CY2018Q4	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	10077000
CY2018Q3	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	10624000
CY2018Q2	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	9722000
CY2018Q1	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	9879000
CY2018Q4	us-gaap	Noninterest Expense NoninterestExpense	22524000
CY2018Q3	us-gaap	Noninterest Expense NoninterestExpense	22200000
CY2018Q2	us-gaap	Noninterest Expense NoninterestExpense	20303000
CY2018Q1	us-gaap	Noninterest Expense NoninterestExpense	21202000
CY2018Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5480000
CY2018Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4679000
CY2018Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5110000
CY2018Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3264000
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	21363000
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	20570000
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	20142000
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	18336000
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.84
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.81
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.80
CY2018Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.73
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.83
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.80
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.79
CY2018Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.71
CY2009Q4	lkfn	Adjustments In Share Capital Warrants Issue AdjustmentsInShareCapitalWarrantsIssue	198269
CY2018	lkfn	Shares Issuable Upon Exercise Of Warrants SharesIssuableUponExerciseOfWarrants	314846
CY2009Q1	lkfn	Issue Of Warrant Stock Purchase IssueOfWarrantStockPurchase	396538
CY2009Q1	lkfn	Issue Of Warrants Aggregate Purchase Price Of Stock IssueOfWarrantsAggregatePurchasePriceOfStock	56044000
CY2009Q1	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P10Y
CY2009Q1	lkfn	Warrant Exercise Price Per Share WarrantExercisePricePerShare	21.20
CY2009Q1	us-gaap	Share Price SharePrice	17.45
CY2009Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice	21.20
CY2018	lkfn	Warrant Exercise Price Per Share WarrantExercisePricePerShare	13.3503
CY2019Q1	us-gaap	Class Of Warrant Or Right Number Of Securities Called By Warrants Or Rights ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights	315961
CY2019Q1	lkfn	Cost To Exercise Warrant CostToExerciseWarrant	4200000
CY2019Q1	lkfn	Common Stock Issued On Warrants Exercises CommonStockIssuedOnWarrantsExercises	91894
CY2009Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0302
CY2009Q1	lkfn	Warrant Period WarrantPeriod	P10Y
CY2009Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.045759
CY2009Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.418046
CY2009Q1	lkfn	Warrant Fair Value Per Share WarrantFairValuePerShare	4.4433
CY2019Q1	lkfn	Warrant Fair Value Per Share WarrantFairValuePerShare	45.74
CY2019Q1	us-gaap	Class Of Warrant Or Right Number Of Securities Called By Warrants Or Rights ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights	224066
CY2019	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	6835000
CY2018	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	6344000
CY2017	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	5481000
CY2019	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	1687000
CY2018	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	1458000
CY2017	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	1273000
CY2019	lkfn	Service Charges On Commercial Deposit Accounts ServiceChargesOnCommercialDepositAccounts	10082000
CY2018	lkfn	Service Charges On Commercial Deposit Accounts ServiceChargesOnCommercialDepositAccounts	10234000
CY2017	lkfn	Service Charges On Commercial Deposit Accounts ServiceChargesOnCommercialDepositAccounts	8230000
CY2019	lkfn	Service Charges On Retail Deposit Accounts ServiceChargesOnRetailDepositAccounts	880000
CY2018	lkfn	Service Charges On Retail Deposit Accounts ServiceChargesOnRetailDepositAccounts	879000
CY2017	lkfn	Service Charges On Retail Deposit Accounts ServiceChargesOnRetailDepositAccounts	905000
CY2019	lkfn	Over Drafts Net OverDraftsNet	3585000
CY2018	lkfn	Over Drafts Net OverDraftsNet	3581000
CY2017	lkfn	Over Drafts Net OverDraftsNet	3452000
CY2019	lkfn	Other Service Charges OtherServiceCharges	1170000
CY2018	lkfn	Other Service Charges OtherServiceCharges	1137000
CY2017	lkfn	Other Service Charges OtherServiceCharges	1109000
CY2019	lkfn	Fees And Commissions Debit Cards Interchange Fees FeesAndCommissionsDebitCardsInterchangeFees	6344000
CY2018	lkfn	Fees And Commissions Debit Cards Interchange Fees FeesAndCommissionsDebitCardsInterchangeFees	5883000
CY2017	lkfn	Fees And Commissions Debit Cards Interchange Fees FeesAndCommissionsDebitCardsInterchangeFees	4663000
CY2019	lkfn	Loan Fees LoanFees	2544000
CY2018	lkfn	Loan Fees LoanFees	2423000
CY2017	us-gaap	Noninterest Income NoninterestIncome	36040000
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	581000
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	595000
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	606000
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	622000
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	2873000
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	5838000
CY2017	lkfn	Loan Fees LoanFees	2231000
CY2019	lkfn	Other Loan And Service Fees OtherLoanAndServiceFees	1023000
CY2018	lkfn	Other Loan And Service Fees OtherLoanAndServiceFees	985000
CY2017	lkfn	Other Loan And Service Fees OtherLoanAndServiceFees	1006000
CY2019	lkfn	Fees And Commissions Credit Card FeesAndCommissionsCreditCard	2641000
CY2018	lkfn	Fees And Commissions Credit Card FeesAndCommissionsCreditCard	2461000
CY2017	lkfn	Fees And Commissions Credit Card FeesAndCommissionsCreditCard	2279000
CY2019	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1890000
CY2018	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1244000
CY2017	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1768000
CY2019	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	1626000
CY2018	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	1150000
CY2017	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	982000
CY2019	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	142000
CY2018	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	-50000
CY2017	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	32000
CY2019	us-gaap	Noninterest Income Other NoninterestIncomeOther	4548000
CY2018	us-gaap	Noninterest Income Other NoninterestIncomeOther	2573000
CY2017	us-gaap	Noninterest Income Other NoninterestIncomeOther	2629000
CY2019	us-gaap	Noninterest Income NoninterestIncome	44997000
CY2018	us-gaap	Noninterest Income NoninterestIncome	40302000
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	561000
CY2019Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	738000
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	5100000
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	5100000
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	498000
CY2019	us-gaap	Short Term Lease Cost ShortTermLeaseCost	24000
CY2019	us-gaap	Lease Cost LeaseCost	522000
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	498000
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P9Y9M18D
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.028

Files In Submission

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$LKFN
LAKELAND FINANCIAL CORP Stock $lkfn

2019 Q4 Form 10-K Financial Statement

#000110465920024065 Filed on February 24, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$LKFN LAKELAND FINANCIAL CORP Stock $lkfn

2019 Q4 Form 10-K Financial Statement

#000110465920024065 Filed on February 24, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$LKFN
LAKELAND FINANCIAL CORP Stock $lkfn