XML 57 R46.htm IDEA: XBRL DOCUMENT
v3.24.3

ALLOWANCE FOR CREDIT LOSSES AND CREDIT QUALITY - Aging Of The Amortized Cost In Past Due Loans (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | $ 5,081,990 | $ 4,916,534
Total Nonaccrual | 57,539 | 15,685
Nonaccrual With No Allowance For Credit Loss | 1,582 | 1,901
Loans Not Past Due |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 5,023,529 | 4,897,462
30-89 Days Past Due |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 827 | 3,360
Greater than 89 Days Past Due and Accruing |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Greater than 89 Days Past Due and Accruing | 95 | 27
Total Accruing |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 5,024,451 | 4,900,849
Commercial and industrial loans: | Working capital lines of credit loans |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 677,901 | 604,890
Total Nonaccrual | 45,413 | 2,654
Nonaccrual With No Allowance For Credit Loss | 596 | 0
Commercial and industrial loans: | Working capital lines of credit loans | Loans Not Past Due |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 632,488 | 602,236
Commercial and industrial loans: | Working capital lines of credit loans | 30-89 Days Past Due |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 0 | 0
Commercial and industrial loans: | Working capital lines of credit loans | Greater than 89 Days Past Due and Accruing |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Greater than 89 Days Past Due and Accruing | 0 | 0
Commercial and industrial loans: | Working capital lines of credit loans | Total Accruing |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 632,488 | 602,236
Commercial and industrial loans: | Non-working capital loans |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 814,350 | 815,418
Total Nonaccrual | 8,826 | 8,741
Nonaccrual With No Allowance For Credit Loss | 86 | 244
Commercial and industrial loans: | Non-working capital loans | Loans Not Past Due |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 805,427 | 805,305
Commercial and industrial loans: | Non-working capital loans | 30-89 Days Past Due |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 97 | 1,372
Commercial and industrial loans: | Non-working capital loans | Greater than 89 Days Past Due and Accruing |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Greater than 89 Days Past Due and Accruing | 0 | 0
Commercial and industrial loans: | Non-working capital loans | Total Accruing |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 805,524 | 806,677
Commercial Real Estate and Multifamily Residential | Construction and land development loans |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 727,235 | 631,653
Total Nonaccrual | 0 | 0
Nonaccrual With No Allowance For Credit Loss | 0 | 0
Commercial Real Estate and Multifamily Residential | Construction and land development loans | Loans Not Past Due |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 727,235 | 631,653
Commercial Real Estate and Multifamily Residential | Construction and land development loans | 30-89 Days Past Due |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 0 | 0
Commercial Real Estate and Multifamily Residential | Construction and land development loans | Greater than 89 Days Past Due and Accruing |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Greater than 89 Days Past Due and Accruing | 0 | 0
Commercial Real Estate and Multifamily Residential | Construction and land development loans | Total Accruing |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 727,235 | 631,653
Commercial Real Estate and Multifamily Residential | Owner occupied loans |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 809,936 | 824,948
Total Nonaccrual | 1,791 | 3,247
Nonaccrual With No Allowance For Credit Loss | 329 | 1,161
Commercial Real Estate and Multifamily Residential | Owner occupied loans | Loans Not Past Due |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 808,145 | 821,701
Commercial Real Estate and Multifamily Residential | Owner occupied loans | 30-89 Days Past Due |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 0 | 0
Commercial Real Estate and Multifamily Residential | Owner occupied loans | Greater than 89 Days Past Due and Accruing |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Greater than 89 Days Past Due and Accruing | 0 | 0
Commercial Real Estate and Multifamily Residential | Owner occupied loans | Total Accruing |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 808,145 | 821,701
Commercial Real Estate and Multifamily Residential | Nonowner occupied loans |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 766,199 | 723,589
Total Nonaccrual | 0 | 0
Nonaccrual With No Allowance For Credit Loss | 0 | 0
Commercial Real Estate and Multifamily Residential | Nonowner occupied loans | Loans Not Past Due |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 766,199 | 723,589
Commercial Real Estate and Multifamily Residential | Nonowner occupied loans | 30-89 Days Past Due |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 0 | 0
Commercial Real Estate and Multifamily Residential | Nonowner occupied loans | Greater than 89 Days Past Due and Accruing |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Greater than 89 Days Past Due and Accruing | 0 | 0
Commercial Real Estate and Multifamily Residential | Nonowner occupied loans | Total Accruing |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 766,199 | 723,589
Commercial Real Estate and Multifamily Residential | Multifamily loans |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 242,937 | 253,197
Total Nonaccrual | 0 | 0
Nonaccrual With No Allowance For Credit Loss | 0 | 0
Commercial Real Estate and Multifamily Residential | Multifamily loans | Loans Not Past Due |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 242,937 | 253,197
Commercial Real Estate and Multifamily Residential | Multifamily loans | 30-89 Days Past Due |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 0 | 0
Commercial Real Estate and Multifamily Residential | Multifamily loans | Greater than 89 Days Past Due and Accruing |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Greater than 89 Days Past Due and Accruing | 0 | 0
Commercial Real Estate and Multifamily Residential | Multifamily loans | Total Accruing |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 242,937 | 253,197
Agri-business and agricultural loans: | Loans secured by farmland |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 157,414 | 162,883
Total Nonaccrual | 80 | 100
Nonaccrual With No Allowance For Credit Loss | 0 | 0
Agri-business and agricultural loans: | Loans secured by farmland | Loans Not Past Due |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 157,334 | 162,783
Agri-business and agricultural loans: | Loans secured by farmland | 30-89 Days Past Due |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 0 | 0
Agri-business and agricultural loans: | Loans secured by farmland | Greater than 89 Days Past Due and Accruing |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Greater than 89 Days Past Due and Accruing | 0 | 0
Agri-business and agricultural loans: | Loans secured by farmland | Total Accruing |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 157,334 | 162,783
Agri-business and agricultural loans: | Loans for agricultural production |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 201,075 | 225,980
Total Nonaccrual | 0 | 0
Nonaccrual With No Allowance For Credit Loss | 0 | 0
Agri-business and agricultural loans: | Loans for agricultural production | Loans Not Past Due |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 201,075 | 225,980
Agri-business and agricultural loans: | Loans for agricultural production | 30-89 Days Past Due |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 0 | 0
Agri-business and agricultural loans: | Loans for agricultural production | Greater than 89 Days Past Due and Accruing |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Greater than 89 Days Past Due and Accruing | 0 | 0
Agri-business and agricultural loans: | Loans for agricultural production | Total Accruing |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 201,075 | 225,980
Agri-business and agricultural loans: | Other commercial loans: |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 94,216 | 120,567
Total Nonaccrual | 0 | 0
Nonaccrual With No Allowance For Credit Loss | 0 | 0
Agri-business and agricultural loans: | Other commercial loans: | Loans Not Past Due |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 94,216 | 120,567
Agri-business and agricultural loans: | Other commercial loans: | 30-89 Days Past Due |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 0 | 0
Agri-business and agricultural loans: | Other commercial loans: | Greater than 89 Days Past Due and Accruing |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Greater than 89 Days Past Due and Accruing | 0 | 0
Agri-business and agricultural loans: | Other commercial loans: | Total Accruing |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 94,216 | 120,567
Consumer 1-4 Family Mortgage | Closed end first mortgage loans |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 261,100 | 257,744
Total Nonaccrual | 717 | 559
Nonaccrual With No Allowance For Credit Loss | 170 | 329
Consumer 1-4 Family Mortgage | Closed end first mortgage loans | Loans Not Past Due |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 260,271 | 256,016
Consumer 1-4 Family Mortgage | Closed end first mortgage loans | 30-89 Days Past Due |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 86 | 1,142
Consumer 1-4 Family Mortgage | Closed end first mortgage loans | Greater than 89 Days Past Due and Accruing |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Greater than 89 Days Past Due and Accruing | 26 | 27
Consumer 1-4 Family Mortgage | Closed end first mortgage loans | Total Accruing |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 260,383 | 257,185
Consumer 1-4 Family Mortgage | Open end and junior lien loans |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 212,256 | 191,572
Total Nonaccrual | 384 | 272
Nonaccrual With No Allowance For Credit Loss | 384 | 164
Consumer 1-4 Family Mortgage | Open end and junior lien loans | Loans Not Past Due |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 211,534 | 190,956
Consumer 1-4 Family Mortgage | Open end and junior lien loans | 30-89 Days Past Due |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 269 | 344
Consumer 1-4 Family Mortgage | Open end and junior lien loans | Greater than 89 Days Past Due and Accruing |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Greater than 89 Days Past Due and Accruing | 69 | 0
Consumer 1-4 Family Mortgage | Open end and junior lien loans | Total Accruing |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 211,872 | 191,300
Consumer 1-4 Family Mortgage | Residential construction loans: |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 14,108 | 8,344
Total Nonaccrual | 0 | 0
Nonaccrual With No Allowance For Credit Loss | 0 | 0
Consumer 1-4 Family Mortgage | Residential construction loans: | Loans Not Past Due |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 14,108 | 8,344
Consumer 1-4 Family Mortgage | Residential construction loans: | 30-89 Days Past Due |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 0 | 0
Consumer 1-4 Family Mortgage | Residential construction loans: | Greater than 89 Days Past Due and Accruing |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Greater than 89 Days Past Due and Accruing | 0 | 0
Consumer 1-4 Family Mortgage | Residential construction loans: | Total Accruing |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 14,108 | 8,344
Consumer 1-4 Family Mortgage | Other consumer loans |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 103,263 | 95,749
Total Nonaccrual | 328 | 112
Nonaccrual With No Allowance For Credit Loss | 17 | 3
Consumer 1-4 Family Mortgage | Other consumer loans | Loans Not Past Due |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 102,560 | 95,135
Consumer 1-4 Family Mortgage | Other consumer loans | 30-89 Days Past Due |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | 375 | 502
Consumer 1-4 Family Mortgage | Other consumer loans | Greater than 89 Days Past Due and Accruing |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Greater than 89 Days Past Due and Accruing | 0 | 0
Consumer 1-4 Family Mortgage | Other consumer loans | Total Accruing |  |
Financing Receivable, Amortized Cost, Aging [Abstract] |  |
Loans | $ 102,935 | $ 95,637

X
- Definition Amount of financing receivable amortized cost 90 days or more past due and still accruing. + References No definition available. + Details
Name: | lkfn_FinancingReceivableAmortizedCost90DaysOrMorePastDueStillAccruing
Namespace Prefix: | lkfn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | lkfn_FinancingReceivableAmortizedCostAgingAbstract
Namespace Prefix: | lkfn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Financing Receivable, Amortized Cost, Before Allowance for Credit Loss, Excluding Accrued Interest + References No definition available. + Details
Name: | lkfn_FinancingReceivableAmortizedCostBeforeAllowanceForCreditLossExcludingAccruedInterest
Namespace Prefix: | lkfn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of financing receivable amortized cost on nonaccrual status. + References No definition available. + Details
Name: | lkfn_FinancingReceivableAmortizedCostNonaccrual
Namespace Prefix: | lkfn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of financing receivable amortized cost on nonaccrual status with no allowance of credit loss. + References No definition available. + Details
Name: | lkfn_FinancingReceivableAmortizedCostNonaccrualWithNoAllowanceOfCreditLoss
Namespace Prefix: | lkfn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancialAssetNotPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=lkfn_FinancialAsset30To89DaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancialAssetPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=lkfn_TotalCommercialAndIndustrialLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_LineOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=lkfn_NonWorkingCapitalLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialRealEstatePortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=lkfn_OwnerOccupiedLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=lkfn_NonownerOccupiedLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=lkfn_MultifamilyLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=lkfn_AgriBusinessAndAgriculturalLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=lkfn_LoansSecuredByFarmlandMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=lkfn_LoansForAgriculturalProductionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=lkfn_OtherCommercialLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ResidentialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_FirstMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_SecondMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ResidentialMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=lkfn_OtherConsumerLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |