XML 96 R136.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Income Tax - Narrative (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018
Valuation Allowance [Line Items] |  |
Decrease in net deferred tax assets | $ 13,121,000 |
Increase in net deferred tax liability for unrealized gains (losses) on available for sale securities | 12,019,000 |
Increase due to accounting for loans | 1,902,000 |
Deferred tax asset increase from deferred compensation | 2,336,000 |
Additional paid-in capital | 1,054,997,000 | $ 840,052,000
Unrecorded deferred tax liability | 5,308,000 |
CFS |  |
Valuation Allowance [Line Items] |  |
Additional paid-in capital | 13,393,000 |
Ameriana |  |
Valuation Allowance [Line Items] |  |
Additional paid-in capital | 11,883,000 |
State and Local Jurisdiction |  |
Valuation Allowance [Line Items] |  |
State tax loss carryforward | 28,354,000 |
State deferred tax assets | $ 3,719,000 |

X
- Definition Deferred Tax Assets, State Taxes and Operating Loss Carryforwards + References No definition available. + Details
Name: | frme_DeferredTaxAssetsStateTaxesandOperatingLossCarryforwards
Namespace Prefix: | frme_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Increase (Decrease) in Deferred Tax Assets + References No definition available. + Details
Name: | frme_IncreaseDecreaseinDeferredTaxAssets
Namespace Prefix: | frme_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Increase (Decrease) in Deferred Tax Assets, Compensation And Benefits Employee Compensation + References No definition available. + Details
Name: | frme_IncreaseDecreaseinDeferredTaxAssetsCompensationAndBenefitsEmployeeCompensation
Namespace Prefix: | frme_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Increase (Decrease) in Deferred Tax Liabilities, Financing Arrangements + References No definition available. + Details
Name: | frme_IncreaseDecreaseinDeferredTaxLiabilitiesFinancingArrangements
Namespace Prefix: | frme_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Increase (Decrease) in Deferred Tax Liability, Available-for-Sale Securities + References No definition available. + Details
Name: | frme_IncreaseDecreaseinDeferredTaxLiabilityAvailableforSaleSecurities
Namespace Prefix: | frme_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock. + References Reference 1: 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(30)(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_AdditionalPaidInCapital
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of deferred tax liability not recognized because of the exceptions to comprehensive recognition of deferred taxes related to bad debt reserve for tax purposes of a qualified lender. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 740 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6479915&loc=d3e66715-112838 + Details
Name: | us-gaap_DeferredTaxLiabilityNotRecognizedAmountOfUnrecognizedDeferredTaxLiabilityBadDebtReserveForTaxPurposesOfQualifiedLender
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319 + Details
Name: | us-gaap_OperatingLossCarryforwards
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_ValuationAllowanceLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=frme_MergerwithCFSBancorpInc.CitizensMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=frme_MergerwithAmerianaBancorpMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeTaxAuthorityAxis=us-gaap_StateAndLocalJurisdictionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |