XML 51 R39.htm IDEA: XBRL DOCUMENT
v3.24.2.u1

Sale of Insurance Assets - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 6 Months Ended
--- | --- | ---
Jun. 01, 2024 | Jun. 30, 2024 | Jun. 30, 2023
Additional Liability, Long-Duration Insurance [Line Items] |  |  |
Proceeds from sale of insurance assets | $ 40,000 | $ 40,000 | $ 0
Sale of insurance assets after tax gain, net of transaction costs | 27,476 |  |
Hilb Group |  |  |
Additional Liability, Long-Duration Insurance [Line Items] |  |  |
Proceeds from sale of insurance assets | 40,000 |  |
Sale of insurance assets after tax gain, net of transaction costs | $ 27,476 |  |
Sale of insurance assets after tax gain, net of transaction costs (in dollars per share) | $ 0.93 |  |

X
- Definition Sale Of Insurance Assets After Tax Gain, Net Of Transaction Costs Per Share + References No definition available. + Details
Name: | gabc_SaleOfInsuranceAssetsAfterTaxGainNetOfTransactionCostsPerShare
Namespace Prefix: | gabc_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Sale Of Insurance Assets, Gain On Sale, After Taxes + References No definition available. + Details
Name: | gabc_SaleOfInsuranceAssetsGainOnSaleAfterTaxes
Namespace Prefix: | gabc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (b)(6) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (b)(5) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (b)(4) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (b)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 + Details
Name: | us-gaap_AdditionalLiabilityLongDurationInsuranceLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The cash inflow associated with the sale of insurance policy investment assets during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-12 + Details
Name: | us-gaap_ProceedsFromSaleOfInsuranceInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | srt_CounterpartyNameAxis=gabc_HilbGroupMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |