XML 51 R42.htm IDEA: XBRL DOCUMENT
v3.23.3

Fair Value - Additional Information (Details) $ in Thousands | Sep. 30, 2023 USD ($) | Sep. 30, 2022 USD ($)
--- | --- | ---
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Fair value, assets, level 1 to level 2 transfers, amount | $ 0 | $ 0
Fair value, assets, level 2 to level 1 transfers, amount | 0 | 0
Fair value, liabilities, level 1 to level 2 transfers, amount | 0 | 0
Fair value, liabilities, level 2 to level 1 transfers, amount | $ 0 | $ 0
Discount rate | Minimum |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Other Real Estate, measurement input | 0 |
Discount rate | Maximum |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Other Real Estate, measurement input | 0.50 |

X
- Definition Amount of transfers of assets measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2. + References No definition available. + Details
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X
- Definition Amount of transfers of assets measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1. + References No definition available. + Details
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X
- Definition Amount of transfers of liabilities measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2. + References No definition available. + Details
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Namespace Prefix: | thff_
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Period Type: | instant

X
- Definition Amount of transfers of liabilities measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1. + References No definition available. + Details
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- 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
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- Definition Value of input used to measure real estate owned by financial institution by financial institution which is not directly related to its business. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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