XML 48 R38.htm IDEA: XBRL DOCUMENT
v3.22.1

ALLOWANCE FOR CREDIT LOSSES AND CREDIT QUALITY - Allowance for loan losses by portfolio segment (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Beginning balance | $ 67,773 | $ 61,408
Provision for credit losses | 417 | 1,477
Loans charged-off | (740) | (236)
Recoveries | 76 | 145
Net loans (charged-off) recovered | (664) | (91)
Ending balance | 67,526 | 71,844
Impact of adopting ASC 326 | ASU 2016-13 |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Beginning balance |  | 9,050
Commercial and Industrial | Commercial Portfolio Segment |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Beginning balance | 30,595 | 28,333
Provision for credit losses | 730 | (540)
Loans charged-off | (19) | (87)
Recoveries | 16 | 34
Net loans (charged-off) recovered | (3) | (53)
Ending balance | 31,322 | 32,052
Commercial and Industrial | Impact of adopting ASC 326 | ASU 2016-13 | Commercial Portfolio Segment |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Beginning balance |  | 4,312
Commercial Real Estate and Multifamily Residential | Commercial Portfolio Segment |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Beginning balance | 26,535 | 22,907
Provision for credit losses | 319 | 2,285
Loans charged-off | (597) | (71)
Recoveries | 0 | 8
Net loans (charged-off) recovered | (597) | (63)
Ending balance | 26,257 | 29,445
Commercial Real Estate and Multifamily Residential | Impact of adopting ASC 326 | ASU 2016-13 | Commercial Portfolio Segment |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Beginning balance |  | 4,316
Agri-business and Agricultural | Commercial Portfolio Segment |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Beginning balance | 5,034 | 3,043
Provision for credit losses | (273) | (202)
Loans charged-off | 0 | 0
Recoveries | 0 | 0
Net loans (charged-off) recovered | 0 | 0
Ending balance | 4,761 | 3,901
Agri-business and Agricultural | Impact of adopting ASC 326 | ASU 2016-13 | Commercial Portfolio Segment |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Beginning balance |  | 1,060
Other Commercial | Commercial Portfolio Segment |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Beginning balance | 1,146 | 416
Provision for credit losses | (88) | (185)
Loans charged-off | 0 | 0
Recoveries | 0 | 0
Net loans (charged-off) recovered | 0 | 0
Ending balance | 1,058 | 1,172
Other Commercial | Impact of adopting ASC 326 | ASU 2016-13 | Commercial Portfolio Segment |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Beginning balance |  | 941
Consumer 1-4 Family Mortgage | Consumer Portfolio Segment |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Beginning balance | 2,866 | 2,619
Provision for credit losses | (248) | (233)
Loans charged-off | (22) | (6)
Recoveries | 10 | 51
Net loans (charged-off) recovered | (12) | 45
Ending balance | 2,606 | 3,384
Consumer 1-4 Family Mortgage | Impact of adopting ASC 326 | ASU 2016-13 | Consumer Portfolio Segment |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Beginning balance |  | 953
Other Consumer | Consumer Portfolio Segment |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Beginning balance | 1,147 | 951
Provision for credit losses | (55) | 13
Loans charged-off | (102) | (72)
Recoveries | 50 | 52
Net loans (charged-off) recovered | (52) | (20)
Ending balance | 1,040 | 1,293
Other Consumer | Impact of adopting ASC 326 | ASU 2016-13 | Consumer Portfolio Segment |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Beginning balance |  | 349
Unallocated |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Beginning balance | 450 | 3,139
Provision for credit losses | 32 | 339
Loans charged-off | 0 | 0
Recoveries | 0 | 0
Net loans (charged-off) recovered | 0 | 0
Ending balance | $ 482 | 597
Unallocated | Impact of adopting ASC 326 | ASU 2016-13 |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Beginning balance |  | $ (2,881)

X
- Definition Amount excluding accrued interest, of allowance for credit loss on financing receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount, after recovery, of writeoff of financing receivable, charged against allowance for credit loss. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=124267575&loc=SL82922352-210448 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (4) + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of increase in allowance for credit loss on financing receivable from recovery. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=124267575&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of writeoff of financing receivable, charged against allowance for credit loss. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=124267575&loc=SL82922352-210448 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of credit loss expense (reversal of expense) for financing receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(11)) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 + Details
Name: | us-gaap_ProvisionForLoanLossesExpensed
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | srt_CumulativeEffectPeriodOfAdoptionAxis=srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201613Member
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_CommercialPortfolioSegmentMember
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_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=lkfn_AgriBusinessAndAgriculturalLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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