XML 48 R35.htm IDEA: XBRL DOCUMENT v3.10.0.1

SECURITIES (Tables)

12 Months Ended

Dec. 31, 2018

Investments, Debt and Equity Securities [Abstract]

Summary of Available-For-Sale Securities

Information related to the fair value and amortized cost of securities available for sale and the related gross unrealized gains and losses recognized in accumulated other comprehensive income (loss) at December 31 is provided in the tables below.

			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
(dollars in thousands)	Cost		Gain		Losses		Value
2018
U.S. Treasury securities	$994		$0		$(7)		$987
U.S. government sponsored agencies	4,435		0		(85)		4,350
Mortgage-backed securities: residential	329,516		1,392		(5,496)		325,412
Mortgage-backed securities: commercial	38,712		0		(571)		38,141
State and municipal securities	217,964		1,403		(2,708)		216,659
Total	$591,621		$2,795		$(8,867)		$585,549
2017
U.S. Treasury securities	$992		$5		$0		$997
U.S. government sponsored agencies	5,191		0		(69)		5,122
Mortgage-backed securities: residential	314,650		2,099		(2,975)		313,774
Mortgage-backed securities: commercial	44,208		75		(72)		44,211
State and municipal securities	172,375		2,990		(976)		174,389
Total	$537,416		$5,169		$(4,092)		$538,493

Schedule of Available-For-Sale Securities By Maturity

Actual maturities of securities may differ from contractual maturities because borrowers may have the right to prepay the obligation without prepayment penalty.

	Amortized		Fair
(dollars in thousands)	Cost		Value
Due in one year or less	$2,540		$2,541
Due after one year through five years	22,363		22,522
Due after five years through ten years	32,702		32,656
Due after ten years	165,788		164,277
	223,393		221,996
Mortgage-backed securities	368,228		363,553
Total debt securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	$591,621		$585,549

Schedule of Sales of Securities Available For Sale

Security proceeds, gross gains and gross losses for 2018, 2017 and 2016 were as follows:

(dollars in thousands)	2018		2017		2016
Sales of securities available for sale
Proceeds	$15,302		$40,877		$12,095
Gross gains	21		267		83
Gross losses	(71	)	(235	)	(17	)
Number of securities	29		50		15

Schedule of Available-For-Sale Securities Continuous Unrealized Loss Position

Information regarding securities with unrealized losses as of December 31, 2018 and 2017 is presented below. The tables distribute 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
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
(dollars in thousands)	Value		Losses		Value		Losses		Value		Losses
2018
U.S. Treasury securities	$0		$0		$987		$7		$987		$7
U.S. government sponsored agencies	0		0		4,350		85		4,350		85
Mortgage-backed securities: residential	11,619		12		217,182		5,484		228,801		5,496
Mortgage-backed securities: commercial	0		0		38,141		571		38,141		571
State and municipal securities	26,229		124		85,982		2,584		112,211		2,708
Total temporarily impaired	$37,848		$136		$346,642		$8,731		$384,490		$8,867
2017
U.S. government sponsored agencies	$2,353		$6		$2,769		$63		$5,122		$69
Mortgage-backed securities: residential	142,834		1,412		59,024		1,563		201,858		2,975
Mortgage-backed securities: commercial	23,505		72		0		0		23,505		72
State and municipal securities	8,585		47		49,552		929		58,137		976
Total temporarily impaired	$177,277		$1,537		$111,345		$2,555		$288,622		$4,092

Quantitative Disclosure of Available-For-Sale Securities

The number of securities with unrealized losses as of December 31, 2018 and 2017 is presented below.

	Less than		12 months
	12 months		or more		Total
2018
U.S. Treasury securities	0		1		1
U.S. government sponsored agencies	0		2		2
Mortgage-backed securities: residential	5		84		89
Mortgage-backed securities: commercial	0		9		9
State and municipal securities	35		111		146
Total temporarily impaired	40		207		247
2017
U.S. government sponsored agencies	1		1		2
Mortgage-backed securities: residential	46		21		67
Mortgage-backed securities: commercial	5		0		5
State and municipal securities	17		62		79
Total temporarily impaired	69		84		153

X

- Definition

Tabular disclosure of the number of available for sale securities in unrealized loss positions.

+ References

No definition available.

+ Details

Name:	lkfn_QuantitativeDisclosureOfAvailableForSaleSecuritiesTableTextBlock
Namespace Prefix:	lkfn_
Data Type:	nonnum: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:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of fair value of investments in debt and equity securities in an unrealized loss position categorized neither as held-to-maturity nor trading securities.

+ References

No definition available.

+ Details

Name:	us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.

+ References

No definition available.

+ Details

Name:	us-gaap_AvailableForSaleSecuritiesTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum: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:	nonnum: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