XML 109 R96.htm IDEA: XBRL DOCUMENT
v3.10.0.1

PENSION AND OTHER POSTRETIREMENT PLANS (Schedule of Fair Values of Pension Plan and Postretirement Plan Assets by Asset Category) (Details) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | $ 2,148 | $ 2,353
Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 884 | 1,046
Fair Value, Inputs, Level 1 [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 2,148 | 2,303
Fair Value, Inputs, Level 1 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 884 | 1,016
Fair Value, Inputs, Level 2 [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 0 | 50
Fair Value, Inputs, Level 2 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 0 | 30
Fair Value, Inputs, Level 3 [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 0 | 0
Fair Value, Inputs, Level 3 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 0 | 0
Equity securities - US large cap common stocks [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 784 | 911
Equity securities - US large cap common stocks [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 322 | 422
Equity securities - US large cap common stocks [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 784 | 911
Equity securities - US large cap common stocks [Member] | Fair Value, Inputs, Level 1 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 322 | 422
Equity securities - US large cap common stocks [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 0 | 0
Equity securities - US large cap common stocks [Member] | Fair Value, Inputs, Level 2 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 0 | 0
Equity securities - US large cap common stocks [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 0 | 0
Equity securities - US large cap common stocks [Member] | Fair Value, Inputs, Level 3 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 0 | 0
Equity securities - US mid cap stock mutual funds [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 107 | 119
Equity securities - US mid cap stock mutual funds [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 43 | 58
Equity securities - US mid cap stock mutual funds [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 107 | 119
Equity securities - US mid cap stock mutual funds [Member] | Fair Value, Inputs, Level 1 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 43 | 58
Equity securities - US mid cap stock mutual funds [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 0 | 0
Equity securities - US mid cap stock mutual funds [Member] | Fair Value, Inputs, Level 2 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 0 | 0
Equity securities - US mid cap stock mutual funds [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 0 | 0
Equity securities - US mid cap stock mutual funds [Member] | Fair Value, Inputs, Level 3 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 0 | 0
Equity securities - US small cap stock mutual funds [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 114 | 125
Equity securities - US small cap stock mutual funds [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 43 | 60
Equity securities - US small cap stock mutual funds [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 114 | 125
Equity securities - US small cap stock mutual funds [Member] | Fair Value, Inputs, Level 1 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 43 | 60
Equity securities - US small cap stock mutual funds [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 0 | 0
Equity securities - US small cap stock mutual funds [Member] | Fair Value, Inputs, Level 2 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 0 | 0
Equity securities - US small cap stock mutual funds [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 0 | 0
Equity securities - US small cap stock mutual funds [Member] | Fair Value, Inputs, Level 3 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 0 | 0
Equity securities - international stock mutual funds [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 225 | 240
Equity securities - international stock mutual funds [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 89 | 115
Equity securities - international stock mutual funds [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 225 | 240
Equity securities - international stock mutual funds [Member] | Fair Value, Inputs, Level 1 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 89 | 115
Equity securities - international stock mutual funds [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 0 | 0
Equity securities - international stock mutual funds [Member] | Fair Value, Inputs, Level 2 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 0 | 0
Equity securities - international stock mutual funds [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 0 | 0
Equity securities - international stock mutual funds [Member] | Fair Value, Inputs, Level 3 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 0 | 0
Equity Securities - emerging markets stock mutual funds [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 49 | 95
Equity Securities - emerging markets stock mutual funds [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 18 | 42
Equity Securities - emerging markets stock mutual funds [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 49 | 95
Equity Securities - emerging markets stock mutual funds [Member] | Fair Value, Inputs, Level 1 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 18 | 42
Equity Securities - emerging markets stock mutual funds [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 0 | 0
Equity Securities - emerging markets stock mutual funds [Member] | Fair Value, Inputs, Level 2 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 0 | 0
Equity Securities - emerging markets stock mutual funds [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 0 | 0
Equity Securities - emerging markets stock mutual funds [Member] | Fair Value, Inputs, Level 3 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 0 | 0
Debt securities - intermediate term bond mutual funds [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 309 | 344
Debt securities - intermediate term bond mutual funds [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 123 | 146
Debt securities - intermediate term bond mutual funds [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 309 | 344
Debt securities - intermediate term bond mutual funds [Member] | Fair Value, Inputs, Level 1 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 123 | 146
Debt securities - intermediate term bond mutual funds [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 0 | 0
Debt securities - intermediate term bond mutual funds [Member] | Fair Value, Inputs, Level 2 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 0 | 0
Debt securities - intermediate term bond mutual funds [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 0 | 0
Debt securities - intermediate term bond mutual funds [Member] | Fair Value, Inputs, Level 3 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 0 | 0
Debt securities - short term bond mutual funds [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 543 | 387
Debt securities - short term bond mutual funds [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 231 | 158
Debt securities - short term bond mutual funds [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 543 | 387
Debt securities - short term bond mutual funds [Member] | Fair Value, Inputs, Level 1 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 231 | 158
Debt securities - short term bond mutual funds [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 0 | 0
Debt securities - short term bond mutual funds [Member] | Fair Value, Inputs, Level 2 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 0 | 0
Debt securities - short term bond mutual funds [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 0 | 0
Debt securities - short term bond mutual funds [Member] | Fair Value, Inputs, Level 3 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 0 | 0
Debt securities - commercial [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits |  | 50
Debt securities - commercial [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits |  | 30
Debt securities - commercial [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits |  | 0
Debt securities - commercial [Member] | Fair Value, Inputs, Level 1 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits |  | 0
Debt securities - commercial [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits |  | 50
Debt securities - commercial [Member] | Fair Value, Inputs, Level 2 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits |  | 30
Debt securities - commercial [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits |  | 0
Debt securities - commercial [Member] | Fair Value, Inputs, Level 3 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits |  | 0
Cash - money market account [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 17 | 82
Cash - money market account [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 15 | 15
Cash - money market account [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 17 | 82
Cash - money market account [Member] | Fair Value, Inputs, Level 1 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 15 | 15
Cash - money market account [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 0 | 0
Cash - money market account [Member] | Fair Value, Inputs, Level 2 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 0 | 0
Cash - money market account [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | 0 | 0
Cash - money market account [Member] | Fair Value, Inputs, Level 3 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Assets for Plan Benefits | $ 0 | $ 0

X
- Definition Amount of asset, recognized in statement of financial position, for overfunded defined benefit pension and other postretirement plans. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109237824&loc=d3e1731-114919 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109237824&loc=d3e1703-114919 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(17)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(10)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(10)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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_DefinedBenefitPlanDisclosureLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RetirementPlanTypeAxis=us-gaap_PensionPlansDefinedBenefitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RetirementPlanTypeAxis=us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | lkfn_DefinedBenefitPlanAssetsAxis=lkfn_EquitySecuritiesUsLargeCapCommonStocksMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | lkfn_DefinedBenefitPlanAssetsAxis=lkfn_EquitySecuritiesUsMidCapStockMutualFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | lkfn_DefinedBenefitPlanAssetsAxis=lkfn_EquitySecuritiesUsSmallCapStockMutualFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | lkfn_DefinedBenefitPlanAssetsAxis=lkfn_EquitySecuritiesInternationalStockMutualFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | lkfn_DefinedBenefitPlanAssetsAxis=lkfn_EquitySecuritiesEmergingMarketsStockMutualFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | lkfn_DefinedBenefitPlanAssetsAxis=lkfn_DebtSecuritiesIntermediateTermBondMutualFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | lkfn_DefinedBenefitPlanAssetsAxis=lkfn_DebtSecuritiesShortTermBondMutualFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | lkfn_DefinedBenefitPlanAssetsAxis=lkfn_DebtSecuritiesCommercialMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | lkfn_DefinedBenefitPlanAssetsAxis=lkfn_CashMoneyMarketAccountMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |