XML 27 R26.htm IDEA: XBRL DOCUMENT
v3.20.1

Allowance for Loan Losses (Details 1) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019 | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | --- | --- | ---
Ending Balance Attributable to Loans |  |  |  |
Individually evaluated for impairment | $ 42 | $ 48 |  |
Collectively evaluated for impairment | 21,021 | 19,895 |  |
Ending Balance | 21,063 | 19,943 | $ 20,960 | $ 20,436
Loans |  |  |  |
Individually evaluated for impairment | 9,731 | 7,113 |  |
Collectively evaluated for impairment | 2,614,336 | 2,651,893 |  |
Total | 2,630,616 | 2,666,442 |  |
Commercial Portfolio Segment [Member] |  |  |  |
Ending Balance Attributable to Loans |  |  |  |
Individually evaluated for impairment | 42 | 48 |  |
Collectively evaluated for impairment | 9,281 | 8,897 |  |
Ending Balance | 9,323 | 8,945 | 9,239 | 9,848
Loans |  |  |  |
Individually evaluated for impairment | 6,152 | 3,161 |  |
Collectively evaluated for impairment | 1,563,334 | 1,584,169 |  |
Total | 1,576,035 | 1,594,766 |  |
Residential Portfolio Segment [Member] |  |  |  |
Ending Balance Attributable to Loans |  |  |  |
Individually evaluated for impairment | 0 | 0 |  |
Collectively evaluated for impairment | 1,452 | 1,302 |  |
Ending Balance | 1,452 | 1,302 | 1,492 | 1,313
Loans |  |  |  |
Individually evaluated for impairment | 3,579 | 3,952 |  |
Collectively evaluated for impairment | 661,353 | 680,069 |  |
Total | 664,932 | 684,021 |  |
Consumer Portfolio Segment [Member] |  |  |  |
Ending Balance Attributable to Loans |  |  |  |
Individually evaluated for impairment | 0 | 0 |  |
Collectively evaluated for impairment | 8,757 | 8,304 |  |
Ending Balance | 8,757 | 8,304 | 7,562 | 7,481
Loans |  |  |  |
Individually evaluated for impairment | 0 | 0 |  |
Collectively evaluated for impairment | 389,649 | 387,655 |  |
Total | 389,649 | 387,655 |  |
Unallocated |  |  |  |
Ending Balance Attributable to Loans |  |  |  |
Individually evaluated for impairment | 0 | 0 |  |
Collectively evaluated for impairment | 1,531 | 1,392 |  |
Ending Balance | 1,531 | 1,392 | $ 2,667 | $ 1,794
Financial Asset Acquired with Credit Deterioration [Member] |  |  |  |
Ending Balance Attributable to Loans |  |  |  |
Financing Receivable, Allowance for Credit Loss | 0 | 0 |  |
Loans |  |  |  |
Financing Receivable, after Allowance for Credit Loss | 6,549 | 7,436 |  |
Financial Asset Acquired with Credit Deterioration [Member] | Commercial Portfolio Segment [Member] |  |  |  |
Ending Balance Attributable to Loans |  |  |  |
Financing Receivable, Allowance for Credit Loss | 0 | 0 |  |
Loans |  |  |  |
Financing Receivable, after Allowance for Credit Loss | 6,549 | 7,436 |  |
Financial Asset Acquired with Credit Deterioration [Member] | Residential Portfolio Segment [Member] |  |  |  |
Ending Balance Attributable to Loans |  |  |  |
Financing Receivable, Allowance for Credit Loss | 0 | 0 |  |
Loans |  |  |  |
Financing Receivable, after Allowance for Credit Loss | 0 | 0 |  |
Financial Asset Acquired with Credit Deterioration [Member] | Consumer Portfolio Segment [Member] |  |  |  |
Ending Balance Attributable to Loans |  |  |  |
Financing Receivable, Allowance for Credit Loss | 0 | 0 |  |
Loans |  |  |  |
Financing Receivable, after Allowance for Credit Loss | 0 | 0 |  |
Financial Asset Acquired with Credit Deterioration [Member] | Unallocated |  |  |  |
Ending Balance Attributable to Loans |  |  |  |
Financing Receivable, Allowance for Credit Loss | $ 0 | $ 0 |  |

X
- Definition -- None. No documentation exists for this element. -- + References No definition available. + Details
Name: | thff_FinancingReceivableAbstract
Namespace Prefix: | thff_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Recorded Investment in financing receivables. + References No definition available. + Details
Name: | thff_FinancingReceivableRecordedInvestment
Namespace Prefix: | thff_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossAdditionalInformationAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118955202&loc=SL82895884-210446 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLosses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The balance of financing receivables that were collectively evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The balance of financing receivables that were individually evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for 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 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b)(1)(ii) -URI http://asc.fasb.org/extlink&oid=118939070&loc=d3e15032-111544 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB Topic 6.L.1) -URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74567-122707 + Details
Name: | us-gaap_LoansAndLeasesReceivableAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount, after allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919230-210447 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=118952595&loc=d3e4428-111522 + Details
Name: | us-gaap_NotesReceivableNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

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

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

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

X
- Details
Name: | us-gaap_CreditLossStatusAxis=us-gaap_FinancialAssetAcquiredWithCreditDeteriorationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |