XML 34 R23.htm IDEA: XBRL DOCUMENT
v3.24.1.u1

SECURITIES (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2024
Investments, Debt and Equity Securities [Abstract] |
Schedule of Available-For-Sale Securities | Information related to the amortized cost, fair value and allowance for credit losses of securities available-for-sale and the related gross unrealized gains and losses recognized in accumulated other comprehensive income (loss) is provided in the table below.
(dollars in thousands) |  | Amortized Cost |  | Gross Unrealized Gain |  | Gross Unrealized Losses |  | Allowance for Credit Losses |  | Fair Value
March 31, 2024 |  |  |  |  |  |  |  |  |  |
U.S. government sponsored agencies |  | $ | 144,693 |  |  | $ | 0 |  |  | $ | (28,241) |  |  | $ | 0 |  |  | $ | 116,452 |
Mortgage-backed securities: residential |  | 511,037 |  |  | 86 |  |  | (79,105) |  |  | 0 |  |  | 432,018 |
State and municipal securities |  | 548,685 |  |  | 21 |  |  | (82,695) |  |  | 0 |  |  | 466,011 |
Total |  | $ | 1,204,415 |  |  | $ | 107 |  |  | $ | (190,041) |  |  | $ | 0 |  |  | $ | 1,014,481 |
December 31, 2023 |  |  |  |  |  |  |  |  |  |
U.S. government sponsored agencies |  | $ | 146,692 |  |  | $ | 0 |  |  | $ | (27,213) |  |  | $ | 0 |  |  | $ | 119,479 |
Mortgage-backed securities: residential |  | 522,275 |  |  | 118 |  |  | (74,551) |  |  | 0 |  |  | 447,842 |
State and municipal securities |  | 557,352 |  |  | 65 |  |  | (73,010) |  |  | 0 |  |  | 484,407 |
Total |  | $ | 1,226,319 |  |  | $ | 183 |  |  | $ | (174,774) |  |  | $ | 0 |  |  | $ | 1,051,728 |
Schedule of Debt Securities, Held-to-Maturity | Information related to the amortized cost, fair value and allowance for credit losses of securities held-to-maturity and the related gross unrealized gains and losses is presented in the table below.
(dollars in thousands) |  | Amortized Cost |  | Gross Unrealized Gain |  | Gross Unrealized Losses |  | Allowance for Credit Losses |  | Fair Value
March 31, 2024 |  |  |  |  |  |  |  |  |  |
State and municipal securities |  | $ | 130,335 |  |  | $ | 0 |  |  | $ | (14,868) |  |  | $ | 0 |  |  | $ | 115,467 |
December 31, 2023 |  |  |  |  |  |  |  |  |  |
State and municipal securities |  | $ | 129,918 |  |  | $ | 0 |  |  | $ | (10,703) |  |  | $ | 0 |  |  | $ | 119,215 |
Schedule of Available-For-Sale Securities By Maturity | Information regarding the amortized cost and fair value of available-for-sale and held-to-maturity debt securities by maturity as of March 31, 2024 is presented below. Maturity information is based on contractual maturity for all securities other than mortgage-backed securities. Actual maturities of securities may differ from contractual maturities because borrowers may have the right to prepay the obligation without a prepayment penalty.
|  | Available-for-Sale |  | Held-to-Maturity
(dollars in thousands) |  | Amortized Cost |  | Fair Value |  | Amortized Cost |  | Fair Value
Due in one year or less |  | $ | 695 |  |  | $ | 695 |  |  | $ | 0 |  |  | $ | 0 |
Due after one year through five years |  | 7,805 |  |  | 7,149 |  |  | 0 |  |  | 0 |
Due after five years through ten years |  | 46,433 |  |  | 43,245 |  |  | 0 |  |  | 0 |
Due after ten years |  | 638,445 |  |  | 531,374 |  |  | 130,335 |  |  | 115,467 |
|  | 693,378 |  |  | 582,463 |  |  | 130,335 |  |  | 115,467 |
Mortgage-backed securities |  | 511,037 |  |  | 432,018 |  |  | 0 |  |  | 0 |
Total debt securities |  | $ | 1,204,415 |  |  | $ | 1,014,481 |  |  | $ | 130,335 |  |  | $ | 115,467 |
Schedule of Sales of Securities Available For Sale | Available-for-sale securities proceeds, gross gains and gross losses are presented below.
|  |  |  | Three Months Ended March 31,
(dollars in thousands) |  |  |  |  |  | 2024 |  | 2023
Sales of securities available-for-sale |  |  |  |  |  |  |  |
Proceeds |  |  |  |  |  | $ | 7,136 |  |  | $ | 87,471 |
Gross gains |  |  |  |  |  | 0 |  |  | 411 |
Gross losses |  |  |  |  |  | (46) |  |  | (395) |
Number of securities |  |  |  |  |  | 15 |  |  | 81 |
Schedule of Debt Securities, Available-for-sale, Unrealized Loss Position, Fair Value | Information regarding available-for-sale securities with unrealized losses as of March 31, 2024 and December 31, 2023 is presented on the following page. The tables divide the securities between those with unrealized losses for less than twelve months and those with unrealized losses for twelve months or more.
|  | Less than 12 months |  | 12 months or more |  | Total
(dollars in thousands) |  | Fair Value |  | Unrealized Losses |  | Fair Value |  | Unrealized Losses |  | Fair Value |  | Unrealized Losses
March 31, 2024 |  |  |  |  |  |  |  |  |  |  |  |
U.S. government sponsored agencies |  | $ | 0 |  |  | $ | 0 |  |  | $ | 116,452 |  |  | $ | 28,241 |  |  | $ | 116,452 |  |  | $ | 28,241 |
Mortgage-backed securities: residential |  | 1,325 |  |  | 11 |  |  | 427,086 |  |  | 79,094 |  |  | 428,411 |  |  | 79,105 |
State and municipal securities |  | 18,355 |  |  | 430 |  |  | 440,893 |  |  | 82,265 |  |  | 459,248 |  |  | 82,695 |
Total available-for-sale |  | $ | 19,680 |  |  | $ | 441 |  |  | $ | 984,431 |  |  | $ | 189,600 |  |  | $ | 1,004,111 |  |  | $ | 190,041 |
December 31, 2023 |  |  |  |  |  |  |  |  |  |  |  |
U.S. government sponsored agencies |  | $ | 0 |  |  | $ | 0 |  |  | $ | 119,479 |  |  | $ | 27,213 |  |  | $ | 119,479 |  |  | $ | 27,213 |
Mortgage-backed securities: residential |  | 52 |  |  | 0 |  |  | 442,765 |  |  | 74,551 |  |  | 442,817 |  |  | 74,551 |
State and municipal securities |  | 31,345 |  |  | 440 |  |  | 440,446 |  |  | 72,570 |  |  | 471,791 |  |  | 73,010 |
Total available-for-sale |  | $ | 31,397 |  |  | $ | 440 |  |  | $ | 1,002,690 |  |  | $ | 174,334 |  |  | $ | 1,034,087 |  |  | $ | 174,774 |
Schedule of Debt Securities, Held-To-Maturity, Unrealized Loss Position, Fair Value | Information regarding held-to-maturity securities with unrealized losses as of March 31, 2024 and December 31, 2023 is presented below. The table divides the securities between those with unrealized losses for less than twelve months and those with unrealized losses for twelve months or more.
|  | Less than 12 months |  | 12 months or more |  | Total
(dollars in thousands) |  | Fair Value |  | Unrealized Losses |  | Fair Value |  | Unrealized Losses |  | Fair Value |  | Unrealized Losses
March 31, 2024 |  |  |  |  |  |  |  |  |  |  |  |
State and municipal securities |  | $ | 0 |  |  | $ | 0 |  |  | $ | 115,467 |  |  | $ | 14,868 |  |  | $ | 115,467 |  |  | $ | 14,868 |
December 31, 2023 |  |  |  |  |  |  |  |  |  |  |  |
State and municipal securities |  | $ | 0 |  |  | $ | 0 |  |  | $ | 119,215 |  |  | $ | 10,703 |  |  | $ | 119,215 |  |  | $ | 10,703 |
Schedule of Quantitative Disclosure of Available-For-Sale Securities | The total number of securities with unrealized losses as of March 31, 2024 and December 31, 2023 is presented below.
| Available-for-Sale |  | Held-to-Maturity
| Less than 12 months |  | 12 months or more |  | Total |  | Less than 12 months |  | 12 months or more |  | Total
March 31, 2024 |  |  |  |  |  |  |  |  |  |  |
U.S. government sponsored agencies | 0 |  |  | 17 |  |  | 17 |  |  | 0 |  |  | 0 |  |  | 0 |
Mortgage-backed securities: residential | 4 |  |  | 126 |  |  | 130 |  |  | 0 |  |  | 0 |  |  | 0 |
State and municipal securities | 24 |  |  | 384 |  |  | 408 |  |  | 0 |  |  | 41 |  |  | 41 |
Total temporarily impaired | 28 |  |  | 527 |  |  | 555 |  |  | 0 |  |  | 41 |  |  | 41 |
December 31, 2023 |  |  |  |  |  |  |  |  |  |  |
U.S. government sponsored agencies | 0 |  |  | 17 |  |  | 17 |  |  | 0 |  |  | 0 |  |  | 0 |
Mortgage-backed securities: residential | 1 |  |  | 126 |  |  | 127 |  |  | 0 |  |  | 0 |  |  | 0 |
State and municipal securities | 40 |  |  | 370 |  |  | 410 |  |  | 0 |  |  | 41 |  |  | 41 |
Total temporarily impaired | 41 |  |  | 513 |  |  | 554 |  |  | 0 |  |  | 41 |  |  | 41 |

X
- Definition Debt Securities, Held-To-Maturity, Unrealized Loss Position, Fair Value + References No definition available. + Details
Name: | lkfn_DebtSecuritiesHeldToMaturityUnrealizedLossPositionFairValueTableTextBlock
Namespace Prefix: | lkfn_
Data Type: | dtr-types1:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the number of available for sale securities in unrealized loss positions. + References No definition available. + Details
Name: | lkfn_QuantitativeDisclosureOfAvailableForSaleAndHeldToMaturitySecuritiesTableTextBlock
Namespace Prefix: | lkfn_
Data Type: | dtr-types1:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the sales of securities available for sale. + References No definition available. + Details
Name: | lkfn_ScheduleOfSalesOfSecuritiesAvailableForSaleTableTextBlock
Namespace Prefix: | lkfn_
Data Type: | dtr-types1:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-9 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-3 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (aa) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (aaa) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 Reference 9: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-3 Reference 10: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-3 Reference 11: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-3 Reference 12: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-3 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 55 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479081/326-30-55-8 Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-6 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479106/326-30-50-4 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionFairValueTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of information about investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-5 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-5 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5B -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-5B Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-5 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (aaa) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-5 Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-5 Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-5 Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (f)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-5 Reference 9: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (f)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-5 Reference 10: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (f)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-5 Reference 11: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (f)(4) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-5 Reference 12: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-5A Reference 13: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-5A Reference 14: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5A -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-5A Reference 15: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-5B Reference 16: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5B -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-5B Reference 17: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5B -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-5B Reference 18: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5B -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-5B + Details
Name: | us-gaap_HeldToMaturitySecuritiesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments. + References No definition available. + Details
Name: | us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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