XML 11 R56.htm IDEA: XBRL DOCUMENT
v3.20.1

LOANS AND ALLOWANCE FOR LOAN LOSSES (Summary of Modified Loans that Continue to Accrue Interest Under the Terms of Restructuring Agreement) (Details) $ in Thousands | Mar. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) loan
--- | --- | ---
Financing Receivable, Modifications [Line Items] |  |
No. of Loans | 128 | 120
Recorded Investment | $ 20,356 | $ 19,496
Outstanding Commitment | $ 0 | $ 26
Performing |  |
Financing Receivable, Modifications [Line Items] |  |
No. of Loans | 101 | 96
Recorded Investment | $ 14,865 | $ 15,686
Outstanding Commitment | $ 0 | $ 26
Performing | Construction and Land Development |  |
Financing Receivable, Modifications [Line Items] |  |
No. of Loans | 4 | 4
Recorded Investment | $ 226 | $ 1,114
Outstanding Commitment | $ 0 | $ 0
Performing | Commercial Real Estate - Owner Occupied |  |
Financing Receivable, Modifications [Line Items] |  |
No. of Loans | 6 | 6
Recorded Investment | $ 2,223 | $ 2,228
Outstanding Commitment | $ 0 | $ 26
Performing | Commercial Real Estate - Non-Owner Occupied |  |
Financing Receivable, Modifications [Line Items] |  |
No. of Loans | 1 | 1
Recorded Investment | $ 1,089 | $ 1,089
Outstanding Commitment | $ 0 | $ 0
Performing | Commercial and Industrial |  |
Financing Receivable, Modifications [Line Items] |  |
No. of Loans | 4 | 4
Recorded Investment | $ 995 | $ 1,020
Outstanding Commitment | $ 0 | $ 0
Performing | Residential 1-4 Family - Commercial |  |
Financing Receivable, Modifications [Line Items] |  |
No. of Loans | 5 | 5
Recorded Investment | $ 287 | $ 290
Outstanding Commitment | $ 0 | $ 0
Performing | Residential 1-4 Family - Consumer |  |
Financing Receivable, Modifications [Line Items] |  |
No. of Loans | 74 | 69
Recorded Investment | $ 9,502 | $ 9,396
Outstanding Commitment | $ 0 | $ 0
Performing | Residential 1-4 Family - Revolving |  |
Financing Receivable, Modifications [Line Items] |  |
No. of Loans | 2 | 2
Recorded Investment | $ 55 | $ 56
Outstanding Commitment | $ 0 | $ 0
Performing | Consumer |  |
Financing Receivable, Modifications [Line Items] |  |
No. of Loans | 4 | 4
Recorded Investment | $ 26 | $ 29
Outstanding Commitment | $ 0 | $ 0
Performing | Other Commercial |  |
Financing Receivable, Modifications [Line Items] |  |
No. of Loans | 1 | 1
Recorded Investment | $ 462 | $ 464
Outstanding Commitment | $ 0 | $ 0
Nonperforming |  |
Financing Receivable, Modifications [Line Items] |  |
No. of Loans | 27 | 24
Recorded Investment | $ 5,491 | $ 3,810
Outstanding Commitment | $ 0 | $ 0
Nonperforming | Commercial Real Estate - Owner Occupied |  |
Financing Receivable, Modifications [Line Items] |  |
No. of Loans | 2 | 2
Recorded Investment | $ 172 | $ 176
Outstanding Commitment | $ 0 | $ 0
Nonperforming | Commercial and Industrial |  |
Financing Receivable, Modifications [Line Items] |  |
No. of Loans | 1 | 1
Recorded Investment | $ 517 | $ 55
Outstanding Commitment | $ 0 | $ 0
Nonperforming | Residential 1-4 Family - Consumer |  |
Financing Receivable, Modifications [Line Items] |  |
No. of Loans | 22 | 19
Recorded Investment | $ 4,747 | $ 3,522
Outstanding Commitment | $ 0 | $ 0
Nonperforming | Residential 1-4 Family - Revolving |  |
Financing Receivable, Modifications [Line Items] |  |
No. of Loans | 2 | 2
Recorded Investment | $ 55 | $ 57
Outstanding Commitment | $ 0 | $ 0

X
- Definition Financing Receivable, Modifications, Number Of Contracts At End Of Period + References No definition available. + Details
Name: | aub_FinancingReceivableModificationsNumberOfContractsAtEndOfPeriod
Namespace Prefix: | aub_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Financing receivable modifications outstanding commitment. + References No definition available. + Details
Name: | aub_FinancingReceivableModificationsOutstandingCommitment
Namespace Prefix: | aub_
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_FinancingReceivableModificationsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of financing receivable modified as troubled debt restructuring. + 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 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=118939409&loc=d3e18845-111554 + Details
Name: | us-gaap_FinancingReceivableModificationsRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancialInstrumentPerformanceStatusAxis=us-gaap_PerformingFinancingReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

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

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=aub_Residential1To4FamilyCommercialMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=aub_Residential1To4FamilyConsumerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=aub_Residential1To4FamilyRevolvingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

X
- Details
Name: | us-gaap_FinancialInstrumentPerformanceStatusAxis=us-gaap_NonperformingFinancingReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |