XML 67 R57.htm IDEA: XBRL DOCUMENT
v3.20.2

Loans and Allowance - Credit Quality of Loan Portfolio by Loan Class (Details) - USD ($) $ in Thousands | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | $ 9,243,833 | $ 8,459,310
Commercial and industrial loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 2,875,331 | 2,109,879
Agricultural production financing and other loans to farmers |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 83,090 | 93,861
Construction |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 622,084 | 787,568
Commercial and farmland |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 3,248,506 | 3,052,698
Residential |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 1,146,406 | 1,143,217
Home equity |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 527,458 | 588,984
Individuals' loans for household and other personal expenditures |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 125,411 | 135,989
Public finance and other commercial loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 615,547 | 547,114
Commercial Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 7,137,276 | 6,447,193
Commercial Pass | Commercial and industrial loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 2,651,863 | 1,956,985
Commercial Pass | Agricultural production financing and other loans to farmers |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 70,380 | 78,558
Commercial Pass | Construction |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 570,635 | 749,249
Commercial Pass | Commercial and farmland |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 3,018,791 | 2,894,366
Commercial Pass | Residential |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 195,916 | 196,710
Commercial Pass | Home equity |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 14,218 | 24,211
Commercial Pass | Individuals' loans for household and other personal expenditures |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 0 | 0
Commercial Pass | Public finance and other commercial loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 615,473 | 547,114
Commercial Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 257,740 | 147,328
Commercial Special Mention | Commercial and industrial loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 130,786 | 81,179
Commercial Special Mention | Agricultural production financing and other loans to farmers |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 4,810 | 5,626
Commercial Special Mention | Construction |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 10,830 | 1,613
Commercial Special Mention | Commercial and farmland |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 109,661 | 57,776
Commercial Special Mention | Residential |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 1,522 | 877
Commercial Special Mention | Home equity |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 57 | 257
Commercial Special Mention | Individuals' loans for household and other personal expenditures |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 0 | 0
Commercial Special Mention | Public finance and other commercial loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 74 | 0
Commercial Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 240,931 | 190,358
Commercial Substandard | Commercial and industrial loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 92,682 | 71,715
Commercial Substandard | Agricultural production financing and other loans to farmers |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 7,900 | 9,677
Commercial Substandard | Construction |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 14,362 | 1,634
Commercial Substandard | Commercial and farmland |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 118,721 | 98,575
Commercial Substandard | Residential |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 6,337 | 8,075
Commercial Substandard | Home equity |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 929 | 682
Commercial Substandard | Individuals' loans for household and other personal expenditures |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 0 | 0
Commercial Substandard | Public finance and other commercial loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 0 | 0
Commercial Doubtful |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 0 | 0
Commercial Doubtful | Commercial and industrial loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 0 | 0
Commercial Doubtful | Agricultural production financing and other loans to farmers |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 0 | 0
Commercial Doubtful | Construction |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 0 | 0
Commercial Doubtful | Commercial and farmland |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 0 | 0
Commercial Doubtful | Residential |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 0 | 0
Commercial Doubtful | Home equity |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 0 | 0
Commercial Doubtful | Individuals' loans for household and other personal expenditures |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 0 | 0
Commercial Doubtful | Public finance and other commercial loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 0 | 0
Commercial Loss |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 0 | 0
Commercial Loss | Commercial and industrial loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 0 | 0
Commercial Loss | Agricultural production financing and other loans to farmers |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 0 | 0
Commercial Loss | Construction |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 0 | 0
Commercial Loss | Commercial and farmland |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 0 | 0
Commercial Loss | Residential |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 0 | 0
Commercial Loss | Home equity |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 0 | 0
Commercial Loss | Individuals' loans for household and other personal expenditures |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 0 | 0
Commercial Loss | Public finance and other commercial loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 0 | 0
Consumer Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 1,601,238 | 1,668,247
Consumer Performing | Commercial and industrial loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 0 | 0
Consumer Performing | Agricultural production financing and other loans to farmers |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 0 | 0
Consumer Performing | Construction |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 26,135 | 35,072
Consumer Performing | Commercial and farmland |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 1,333 | 1,981
Consumer Performing | Residential |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 938,731 | 932,743
Consumer Performing | Home equity |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 509,676 | 562,507
Consumer Performing | Individuals' loans for household and other personal expenditures |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 125,363 | 135,944
Consumer Performing | Public finance and other commercial loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 0 | 0
Consumer Non-Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 6,648 | 6,184
Consumer Non-Performing | Commercial and industrial loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 0 | 0
Consumer Non-Performing | Agricultural production financing and other loans to farmers |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 0 | 0
Consumer Non-Performing | Construction |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 122 | 0
Consumer Non-Performing | Commercial and farmland |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 0 | 0
Consumer Non-Performing | Residential |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 3,900 | 4,812
Consumer Non-Performing | Home equity |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 2,578 | 1,327
Consumer Non-Performing | Individuals' loans for household and other personal expenditures |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | 48 | 45
Consumer Non-Performing | Public finance and other commercial loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans | $ 0 | $ 0

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

X
- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522 + Details
Name: | us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=frme_CommercialAndIndustrialLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=frme_FarmingAndAgricultureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ConstructionLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=frme_CommercialAndFarmLandLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ResidentialRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_HomeEquityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ConsumerLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=frme_PublicFinanceandOtherCommercialLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_PassMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_SpecialMentionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_SubstandardMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_DoubtfulMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_UnlikelyToBeCollectedFinancingReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_PerformingFinancingReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_NonperformingFinancingReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |