XML 95 R79.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Loans and Allowance - Credit Quality of Loan Portfolio by Loan Class (Details) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | $ 7,224,467 | $ 6,751,199
Commercial and industrial loans |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 1,726,664 | 1,493,493
Agricultural production financing and other loans to farmers |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 92,404 | 121,757
Construction |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 545,729 | 612,219
Commercial and farmland |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 2,832,102 | 2,562,691
Residential |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 966,421 | 962,765
Home equity |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 528,157 | 514,021
Individuals' loans for household and other personal expenditures |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 99,788 | 86,935
Lease financing receivables, net of unearned income |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 1,600 | 2,527
Other commercial loans |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 431,602 | 394,791
Commercial Pass |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 5,528,751 | 5,099,464
Commercial Pass | Commercial and industrial loans |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 1,660,879 | 1,418,401
Commercial Pass | Agricultural production financing and other loans to farmers |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 78,446 | 73,800
Commercial Pass | Construction |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 492,358 | 587,906
Commercial Pass | Commercial and farmland |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 2,669,491 | 2,408,329
Commercial Pass | Residential |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 170,075 | 185,725
Commercial Pass | Home equity |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 24,653 | 28,554
Commercial Pass | Lease financing receivables, net of unearned income |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 1,600 | 2,527
Commercial Pass | Other commercial loans |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 431,249 | 394,222
Commercial Special Mention |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 115,342 | 154,573
Commercial Special Mention | Commercial and industrial loans |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 23,246 | 51,336
Commercial Special Mention | Agricultural production financing and other loans to farmers |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 5,966 | 27,502
Commercial Special Mention | Construction |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 2,185 | 828
Commercial Special Mention | Commercial and farmland |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 76,037 | 70,074
Commercial Special Mention | Residential |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 7,373 | 4,376
Commercial Special Mention | Home equity |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 535 | 457
Commercial Substandard |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 161,929 | 129,218
Commercial Substandard | Commercial and industrial loans |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 42,539 | 23,386
Commercial Substandard | Agricultural production financing and other loans to farmers |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 7,992 | 20,018
Commercial Substandard | Construction |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 24,224 | 981
Commercial Substandard | Commercial and farmland |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 84,288 | 79,769
Commercial Substandard | Residential |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 2,076 | 4,209
Commercial Substandard | Home equity |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 457 | 286
Commercial Substandard | Lease financing receivables, net of unearned income |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans |  |
Commercial Substandard | Other commercial loans |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 353 | 569
Commercial Doubtful |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans |  | 2,407
Commercial Doubtful | Commercial and industrial loans |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans |  | 370
Commercial Doubtful | Agricultural production financing and other loans to farmers |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans |  | 387
Commercial Doubtful | Commercial and farmland |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans |  | 1,536
Commercial Doubtful | Residential |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans |  | 114
Commercial Loss |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans |  | 50
Commercial Loss | Agricultural production financing and other loans to farmers |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans |  | 50
Consumer Performing |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 1,410,521 | 1,354,790
Consumer Performing | Construction |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 25,419 | 22,374
Consumer Performing | Commercial and farmland |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 2,285 | 2,980
Consumer Performing | Residential |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 782,080 | 759,900
Consumer Performing | Home equity |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 500,996 | 482,661
Consumer Performing | Individuals' loans for household and other personal expenditures |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 99,741 | 86,875
Consumer Non Performing |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 7,924 | 10,697
Consumer Non Performing | Construction |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 1,543 | 130
Consumer Non Performing | Commercial and farmland |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 1 | 3
Consumer Non Performing | Residential |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 4,817 | 8,441
Consumer Non Performing | Home equity |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | 1,516 | 2,063
Consumer Non Performing | Individuals' loans for household and other personal expenditures |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans | $ 47 | $ 60

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=82891408&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=us-gaap_FinanceLeasesPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

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

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

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

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

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