XML 132 R101.htm IDEA: XBRL DOCUMENT
v3.20.4

EMPLOYEE BENEFIT PLANS Defined Benefit Plan, Fair Value on Plan Assets (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | --- | ---
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | $ 155,704 | $ 141,816 | $ 130,078
Fair Value, Inputs, Level 1 [Member] |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 151,511 | 136,459 |
Fair Value, Inputs, Level 2 [Member] |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 4,193 | 5,357 |
Fair Value, Inputs, Level 3 [Member] |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 0 | 0 |
Fair Value, Inputs, Level 1, 2 and 3 [Member] |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 155,704 | 141,816 |
Cash | Fair Value, Inputs, Level 1 [Member] |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 129 | 195 |
Cash | Fair Value, Inputs, Level 2 [Member] |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 0 | 0 |
Cash | Fair Value, Inputs, Level 3 [Member] |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 0 | 0 |
Cash | Fair Value, Inputs, Level 1, 2 and 3 [Member] |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 129 | 195 |
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 0 | 0 |
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 4,193 | 5,357 |
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 0 | 0 |
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member] |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 4,193 | 5,357 |
Fixed income mutual funds | Fair Value, Inputs, Level 1 [Member] |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 65,443 | 75,720 |
Fixed income mutual funds | Fair Value, Inputs, Level 2 [Member] |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 0 | 0 |
Fixed income mutual funds | Fair Value, Inputs, Level 3 [Member] |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 0 | 0 |
Fixed income mutual funds | Fair Value, Inputs, Level 1, 2 and 3 [Member] |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 65,443 | 75,720 |
Equity mutual funds | Fair Value, Inputs, Level 1 [Member] |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 85,939 | 60,544 |
Equity mutual funds | Fair Value, Inputs, Level 2 [Member] |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 0 | 0 |
Equity mutual funds | Fair Value, Inputs, Level 3 [Member] |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 0 | 0 |
Equity mutual funds | Fair Value, Inputs, Level 1, 2 and 3 [Member] |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | $ 85,939 | $ 60,544 |

X
- Definition Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(01) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(01) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(ii) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(02) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 7: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(ii) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
Name: | us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
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_DefinedBenefitPlanPlanAssetsCategoryLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel12And3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_MoneyMarketFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_USGovernmentAgenciesDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_FixedIncomeFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_EquityFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |