XML 59 R48.htm IDEA: XBRL DOCUMENT
v3.21.1

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, 2021 USD ($) loan | Dec. 31, 2020 USD ($) loan
--- | --- | ---
Financing Receivable, Modifications [Line Items] |  |
No. of Loans | loan | 144 | 137
Recorded Investment | $ 19,728 | $ 20,616
Outstanding Commitment | $ 3 | $ 176
Performing |  |
Financing Receivable, Modifications [Line Items] |  |
No. of Loans | loan | 106 | 102
Recorded Investment | $ 13,670 | $ 13,961
Outstanding Commitment | $ 3 | $ 176
Performing | Construction and Land Development |  |
Financing Receivable, Modifications [Line Items] |  |
No. of Loans | loan | 4 | 4
Recorded Investment | $ 212 | $ 215
Outstanding Commitment | $ 0 | $ 0
Performing | Commercial Real Estate - Owner Occupied |  |
Financing Receivable, Modifications [Line Items] |  |
No. of Loans | loan | 5 | 6
Recorded Investment | $ 1,827 | $ 2,033
Outstanding Commitment | $ 0 | $ 176
Performing | Commercial Real Estate - Non-Owner Occupied |  |
Financing Receivable, Modifications [Line Items] |  |
No. of Loans | loan | 1 | 1
Recorded Investment | $ 1,089 | $ 1,089
Outstanding Commitment | $ 0 | $ 0
Performing | Commercial and Industrial |  |
Financing Receivable, Modifications [Line Items] |  |
No. of Loans | loan | 2 | 4
Recorded Investment | $ 446 | $ 727
Outstanding Commitment | $ 0 | $ 0
Performing | Residential 1-4 Family - Commercial |  |
Financing Receivable, Modifications [Line Items] |  |
No. of Loans | loan | 2 | 3
Recorded Investment | $ 109 | $ 245
Outstanding Commitment | $ 0 | $ 0
Performing | Residential 1-4 Family - Consumer |  |
Financing Receivable, Modifications [Line Items] |  |
No. of Loans | loan | 84 | 77
Recorded Investment | $ 9,271 | $ 8,943
Outstanding Commitment | $ 0 | $ 0
Performing | Residential 1-4 Family - Revolving |  |
Financing Receivable, Modifications [Line Items] |  |
No. of Loans | loan | 3 | 3
Recorded Investment | $ 274 | $ 277
Outstanding Commitment | $ 3 | $ 0
Performing | Consumer |  |
Financing Receivable, Modifications [Line Items] |  |
No. of Loans | loan | 4 | 3
Recorded Investment | $ 35 | $ 22
Outstanding Commitment | $ 0 | $ 0
Performing | Other Commercial |  |
Financing Receivable, Modifications [Line Items] |  |
No. of Loans | loan | 1 | 1
Recorded Investment | $ 407 | $ 410
Outstanding Commitment | $ 0 | $ 0
Nonperforming |  |
Financing Receivable, Modifications [Line Items] |  |
No. of Loans | loan | 38 | 35
Recorded Investment | $ 6,058 | $ 6,655
Outstanding Commitment | $ 0 | $ 0
Nonperforming | Commercial Real Estate - Owner Occupied |  |
Financing Receivable, Modifications [Line Items] |  |
No. of Loans | loan | 1 | 1
Recorded Investment | $ 19 | $ 20
Outstanding Commitment | $ 0 | $ 0
Nonperforming | Commercial Real Estate - Non-Owner Occupied |  |
Financing Receivable, Modifications [Line Items] |  |
No. of Loans | loan | 1 | 1
Recorded Investment | $ 128 | $ 134
Outstanding Commitment | $ 0 | $ 0
Nonperforming | Commercial and Industrial |  |
Financing Receivable, Modifications [Line Items] |  |
No. of Loans | loan | 4 | 3
Recorded Investment | $ 427 | $ 237
Outstanding Commitment | $ 0 | $ 0
Nonperforming | Residential 1-4 Family - Commercial |  |
Financing Receivable, Modifications [Line Items] |  |
No. of Loans | loan | 3 | 4
Recorded Investment | $ 404 | $ 1,296
Outstanding Commitment | $ 0 | $ 0
Nonperforming | Residential 1-4 Family - Consumer |  |
Financing Receivable, Modifications [Line Items] |  |
No. of Loans | loan | 26 | 23
Recorded Investment | $ 4,977 | $ 4,865
Outstanding Commitment | $ 0 | $ 0
Nonperforming | Residential 1-4 Family - Revolving |  |
Financing Receivable, Modifications [Line Items] |  |
No. of Loans | loan | 3 | 3
Recorded Investment | $ 103 | $ 103
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=121611835&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=121585226&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: |