XML 28 R39.htm IDEA: XBRL DOCUMENT
v3.19.3

Loans Modified in Trouble Debt Restructurings (Details) - Entity Loan Modification Program - Payment Deferral $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 USD ($) contract | Sep. 30, 2018 USD ($) contract | Sep. 30, 2019 USD ($) contract | Sep. 30, 2018 USD ($) contract
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Loans | contract | 0 | 1 | 5 | 5
Pre-Modification Outstanding Recorded Investment | $ 0 | $ 16 | $ 47 | $ 44
Post-Modification Outstanding Recorded Investment | $ 0 | $ 16 | $ 47 | $ 44
Subsequent Default, Number of Contracts | contract | 0 | 0 | 0 | 0
Subsequent Default, Recorded Investment | $ 0 | $ 0 | $ 0 | $ 0
Commercial |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Loans | contract | 0 | 0 | 0 | 0
Pre-Modification Outstanding Recorded Investment | $ 0 | $ 0 | $ 0 | $ 0
Post-Modification Outstanding Recorded Investment | $ 0 | $ 0 | $ 0 | $ 0
Subsequent Default, Number of Contracts | contract | 0 | 0 | 0 | 0
Subsequent Default, Recorded Investment | $ 0 | $ 0 | $ 0 | $ 0
Commercial Real Estate Portfolio Segment |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Loans | contract | 0 | 0 | 0 | 0
Pre-Modification Outstanding Recorded Investment | $ 0 | $ 0 | $ 0 | $ 0
Post-Modification Outstanding Recorded Investment | $ 0 | $ 0 | $ 0 | $ 0
Subsequent Default, Number of Contracts | contract | 0 | 0 | 0 | 0
Subsequent Default, Recorded Investment | $ 0 | $ 0 | $ 0 | $ 0
Consumer Loans Financing |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Loans | contract | 0 | 1 | 5 | 5
Pre-Modification Outstanding Recorded Investment | $ 0 | $ 16 | $ 47 | $ 44
Post-Modification Outstanding Recorded Investment | $ 0 | $ 16 | $ 47 | $ 44
Subsequent Default, Number of Contracts | contract | 0 | 0 | 0 | 0
Subsequent Default, Recorded Investment | $ 0 | $ 0 | $ 0 | $ 0
Residential |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Loans | contract | 0 | 0 | 0 | 0
Pre-Modification Outstanding Recorded Investment | $ 0 | $ 0 | $ 0 | $ 0
Post-Modification Outstanding Recorded Investment | $ 0 | $ 0 | $ 0 | $ 0
Subsequent Default, Number of Contracts | contract | 0 | 0 | 0 | 0
Subsequent Default, Recorded Investment | $ 0 | $ 0 | $ 0 | $ 0

X
- Definition Financing Receivable, Modification, Subsequent Default, Number of Contracts + References No definition available. + Details
Name: | arow_FinancingReceivableModificationSubsequentDefaultNumberOfContracts
Namespace Prefix: | arow_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Financing Receivable, Modification, Subsequent Default, Recorded Investment + References No definition available. + Details
Name: | arow_FinancingReceivableModificationSubsequentDefaultRecordedInvestment
Namespace Prefix: | arow_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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 No definition available. + Details
Name: | us-gaap_FinancingReceivableModificationsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953676-111524 + Details
Name: | us-gaap_FinancingReceivableModificationsNumberOfContracts2
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, after troubled debt restructuring, of modified financing receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953676-111524 + Details
Name: | us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount, before troubled debt restructuring, of financing receivable to be modified. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953676-111524 + Details
Name: | us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_LoanRestructuringModificationNameAxis=us-gaap_EntityLoanModificationProgramMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LoanRestructuringModificationAxis=us-gaap_PaymentDeferralMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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