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ALLOWANCE FOR CREDIT LOSSES AND CREDIT QUALITY - Narrative (Details) | 6 Months Ended
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Jun. 30, 2025 USD ($)
ALLOWANCE FOR CREDIT LOSSES AND CREDIT QUALITY |
Loan amount of credit quality analysis | $ 250,000

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- Definition It represents the information pertaining to allowance for loan losses and credit quality. + References No definition available. + Details
Name: | lkfn_AllowanceForLoanLossesAndCreditQualityAbstract
Namespace Prefix: | lkfn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The minimum loan amount required for credit quality analysis. + References No definition available. + Details
Name: | lkfn_LoanAmountOfCreditQualityAnalysis
Namespace Prefix: | lkfn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration