XML 62 R51.htm IDEA: XBRL DOCUMENT
v3.23.3

LOANS AND ALLOWANCE FOR LOAN AND LEASE LOSSES (Troubled Debt Restructurings) (Details) $ in Thousands | Dec. 31, 2022 USD ($) loan
--- | ---
Financing Receivable, Modifications [Line Items] |
No. of Loans | loan | 127
Recorded Investment | $ 14,190
Outstanding Commitment | 5
Troubled Debt Restructurings |
Financing Receivable, Modifications [Line Items] |
Recorded Investment | $ 14,200
Performing Financing Receivable |
Financing Receivable, Modifications [Line Items] |
No. of Loans | loan | 93
Recorded Investment | $ 9,273
Outstanding Commitment | $ 5
Performing Financing Receivable | Construction and Land Development |
Financing Receivable, Modifications [Line Items] |
No. of Loans | loan | 3
Recorded Investment | $ 155
Outstanding Commitment | $ 0
Performing Financing Receivable | Commercial Real Estate - Owner Occupied |
Financing Receivable, Modifications [Line Items] |
No. of Loans | loan | 2
Recorded Investment | $ 997
Outstanding Commitment | $ 0
Performing Financing Receivable | Commercial and Industrial |
Financing Receivable, Modifications [Line Items] |
No. of Loans | loan | 1
Recorded Investment | $ 93
Outstanding Commitment | $ 0
Performing Financing Receivable | Residential 1-4 Family - Mortgage |
Financing Receivable, Modifications [Line Items] |
No. of Loans | loan | 83
Recorded Investment | $ 7,761
Outstanding Commitment | $ 0
Performing Financing Receivable | Residential 1-4 Family - Revolving |
Financing Receivable, Modifications [Line Items] |
No. of Loans | loan | 3
Recorded Investment | $ 254
Outstanding Commitment | $ 5
Performing Financing Receivable | Consumer |
Financing Receivable, Modifications [Line Items] |
No. of Loans | loan | 1
Recorded Investment | $ 13
Outstanding Commitment | $ 0
Nonperforming Financing Receivable |
Financing Receivable, Modifications [Line Items] |
No. of Loans | loan | 34
Recorded Investment | $ 4,917
Outstanding Commitment | $ 0
Nonperforming Financing Receivable | Commercial Real Estate - Owner Occupied |
Financing Receivable, Modifications [Line Items] |
No. of Loans | loan | 1
Recorded Investment | $ 15
Outstanding Commitment | $ 0
Nonperforming Financing Receivable | Commercial Real Estate - Non-Owner Occupied |
Financing Receivable, Modifications [Line Items] |
No. of Loans | loan | 2
Recorded Investment | $ 233
Outstanding Commitment | $ 0
Nonperforming Financing Receivable | Commercial and Industrial |
Financing Receivable, Modifications [Line Items] |
No. of Loans | loan | 2
Recorded Investment | $ 375
Outstanding Commitment | $ 0
Nonperforming Financing Receivable | Residential 1-4 Family - Commercial |
Financing Receivable, Modifications [Line Items] |
No. of Loans | loan | 3
Recorded Investment | $ 332
Outstanding Commitment | $ 0
Nonperforming Financing Receivable | Residential 1-4 Family - Mortgage |
Financing Receivable, Modifications [Line Items] |
No. of Loans | loan | 23
Recorded Investment | $ 3,869
Outstanding Commitment | $ 0
Nonperforming Financing Receivable | Residential 1-4 Family - Revolving |
Financing Receivable, Modifications [Line Items] |
No. of Loans | loan | 3
Recorded Investment | $ 93
Outstanding Commitment | $ 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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 42 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-42 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 42 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-42 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 12A -Publisher FASB -URI https://asc.fasb.org//1943274/2147481933/310-10-55-12A Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 33 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-33 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 34 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-34 + Details
Name: | us-gaap_FinancingReceivableModificationsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Accumulated amortized cost of financing receivable modified for debtor experiencing financial difficulty. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 42 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-42 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 33 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-33 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 310 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481746/310-40-50-4 + Details
Name: | us-gaap_FinancingReceivableModificationsRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

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_CommercialAndIndustrialMember
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_FinancialInstrumentPerformanceStatusAxis=us-gaap_NonperformingFinancingReceivableMember
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_Residential1To4FamilyCommercialMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |