XML 137 R116.htm IDEA: XBRL DOCUMENT
v3.25.0.1

EMPLOYEE BENEFIT PLANS Defined Benefit Plan, Fair Value on Plan Assets (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | --- | ---
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | $ 150,154 | $ 144,540 | $ 133,449
Pension Plan |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 150,154 |  |
Fair Value, Inputs, Level 1 [Member] | Pension Plan |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 130,596 |  |
Fair Value, Inputs, Level 2 [Member] | Pension Plan |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 4,110 |  |
Fair Value, Inputs, Level 3 [Member] | Pension Plan |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 0 |  |
Cash | Fair Value, Inputs, Level 1 [Member] | Pension Plan |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 245 |  |
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount |  | 193 |
Cash | Fair Value, Inputs, Level 2 [Member] | Pension Plan |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 0 |  |
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount |  | 0 |
Cash | Fair Value, Inputs, Level 3 [Member] | Pension Plan |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 0 |  |
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount |  | 0 |
Cash | Fair Value, Inputs, Level 1, 2 and 3 [Member] | Pension Plan |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 245 |  |
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount |  | 193 |
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plan |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 0 |  |
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount |  | 0 |
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plan |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 4,110 |  |
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount |  | 2,751 |
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plan |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 0 |  |
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount |  | 0 |
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member] | Pension Plan |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 4,110 |  |
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount |  | 2,751 |
Fixed income mutual funds | Fair Value, Inputs, Level 1 [Member] | Pension Plan |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 65,139 |  |
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount |  | 53,022 |
Fixed income mutual funds | Fair Value, Inputs, Level 2 [Member] | Pension Plan |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 0 |  |
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount |  | 0 |
Fixed income mutual funds | Fair Value, Inputs, Level 3 [Member] | Pension Plan |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 0 |  |
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount |  | 0 |
Fixed income mutual funds | Fair Value, Inputs, Level 1, 2 and 3 [Member] | Pension Plan |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 65,139 |  |
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount |  | 53,022 |
Equity mutual funds | Fair Value, Inputs, Level 1 [Member] | Pension Plan |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 65,212 |  |
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount |  | 74,301 |
Equity mutual funds | Fair Value, Inputs, Level 2 [Member] | Pension Plan |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 0 |  |
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount |  | 0 |
Equity mutual funds | Fair Value, Inputs, Level 3 [Member] | Pension Plan |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 0 |  |
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount |  | 0 |
Equity mutual funds | Fair Value, Inputs, Level 1, 2 and 3 [Member] | Pension Plan |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 65,212 |  |
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount |  | 74,301 |
Defined Benefit Plan, Common Collective Trust | Fair Value, Inputs, Level 1 [Member] | Pension Plan |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 0 |  |
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount |  | 0 |
Defined Benefit Plan, Common Collective Trust | Fair Value, Inputs, Level 2 [Member] | Pension Plan |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 0 |  |
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount |  | 0 |
Defined Benefit Plan, Common Collective Trust | Fair Value, Inputs, Level 3 [Member] | Pension Plan |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 0 |  |
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount |  | 0 |
Defined Benefit Plan, Common Collective Trust | Fair Value, Inputs, Level 1, 2 and 3 [Member] | Pension Plan |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Fair value measurements | 15,448 |  |
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount |  | 14,273 |
Pension Plans Defined Benefit Total Assets in Fair Value Hierarchy Member | Fair Value, Inputs, Level 1 [Member] | Pension Plan |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount |  | 127,516 |
Pension Plans Defined Benefit Total Assets in Fair Value Hierarchy Member | Fair Value, Inputs, Level 2 [Member] | Pension Plan |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount |  | 2,751 |
Pension Plans Defined Benefit Total Assets in Fair Value Hierarchy Member | Fair Value, Inputs, Level 3 [Member] | Pension Plan |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount |  | 0 |
Pension Plans Defined Benefit Total Assets in Fair Value Hierarchy Member | Fair Value, Inputs, Level 1, 2 and 3 [Member] | Pension Plan |  |  |
Defined Benefit Plan, Plan Assets, Category [Line Items] |  |  |
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount | $ 134,706 | $ 130,267 |

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/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480482/715-20-55-17 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(02) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(ii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 Reference 6: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(ii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 Reference 7: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + 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 Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480482/715-20-55-17 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(ii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(03) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
Name: | us-gaap_DefinedBenefitPlanPlanAssetsCategoryLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of investment within defined benefit plan asset category. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(ii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
Name: | us-gaap_DefinedBenefitPlanPlanAssetsInvestmentWithinPlanAssetCategoryAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_RetirementPlanTypeAxis=us-gaap_PensionPlansDefinedBenefitMember
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: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_MoneyMarketFundsMember
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_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: |

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

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