XML 59 R46.htm IDEA: XBRL DOCUMENT
v3.20.4

Commitments and Contingencies (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 USD ($) multiplier community property Lease | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($)
Commitments and Contingencies Disclosure [Line Items] |  |  |
Finance Lease, Right-of-Use Asset | $ 21,685 | $ 21,898 |
Employment Agreements and Arrangements [Abstract] |  |  |
Proceeds from legal recoveries |  | (6,292) | $ (946)
Lease Obligations [Abstract] |  |  |
Number of office leases | Lease | 14 |  |
Finance Lease, Liability | $ 20,166 | 20,207 |
Right of use lease assets | 133,581 | 103,063 |
Operating Lease, Liability | 161,313 | 120,261 |
Operating Lease, Expense | $ 16,011 | $ 14,371 | 21,788
Properties on Land Subject to Land Leases |  |  |
Lease Obligations [Abstract] |  |  |
Number of apartment communities | community | 10 |  |
Number of commercial properties owned | property | 2 |  |
Assets Held under Operating Leases [Member] |  |  |
Lease Obligations [Abstract] |  |  |
Number of apartment communities | community | 9 |  |
Assets Held under Finance Leases [Member] |  |  |
Lease Obligations [Abstract] |  |  |
Number of apartment communities | community | 1 |  |
Number Of Finance Leases For Parking Garages Adjacent To Communities | Lease | 2 |  |
Restricted stock and stock options |  |  |
Employment Agreements and Arrangements [Abstract] |  |  |
Retirement age (in years) | 50 years |  |
Period of the non-compete agreement (in years) | 1 year |  |
Restricted stock and stock options | Minimum |  |  |
Employment Agreements and Arrangements [Abstract] |  |  |
Service period (in years) | 10 years |  |
Employee's age at retirement plus years of employment (in years) | 70 years |  |
Share Based Compensation Arrangement by Share Based Payment Award Requisite Period of Written Notice for Retirement | 6 months |  |
Restricted stock and stock options | Maximum |  |  |
Employment Agreements and Arrangements [Abstract] |  |  |
Options exercise period upon termination without cause or retirement (in months) | 12 months |  |
Officer Severance Program | Vice President and Senior Vice President |  |  |
Employment Agreements and Arrangements [Abstract] |  |  |
Compensation multiplier | multiplier | 1 |  |
Officer Severance Program | Executive Vice Presidents |  |  |
Employment Agreements and Arrangements [Abstract] |  |  |
Compensation multiplier | multiplier | 2 |  |
Officer Severance Program | Chief Executive Officer |  |  |
Employment Agreements and Arrangements [Abstract] |  |  |
Compensation multiplier | multiplier | 3 |  |
Officer Severance Program | Maximum |  |  |
Employment Agreements and Arrangements [Abstract] |  |  |
Termination period following a sale event (in years) | 24 months |  |
Former Development Right [Member] |  |  |
Employment Agreements and Arrangements [Abstract] |  |  |
Proceeds from legal recoveries | $ (3,126) |  |
Avalon Towers [Member] |  |  |
Employment Agreements and Arrangements [Abstract] |  |  |
Proceeds from legal recoveries | $ (2,237) |  |
Memorial Heights Villages |  |  |
Employment Agreements and Arrangements [Abstract] |  |  |
Proceeds from legal recoveries |  |  | $ (554)

X
- References No definition available. + Details
Name: | avb_CommitmentsAndContingenciesDisclosureLineItems
Namespace Prefix: | avb_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | avb_EmploymentAgreementsAndArrangementsAbstract
Namespace Prefix: | avb_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | avb_LeaseObligationsAbstract
Namespace Prefix: | avb_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of commercial properties owned. + References No definition available. + Details
Name: | avb_NumberOfCommercialPropertiesOwned
Namespace Prefix: | avb_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of Finance Leases for Parking Garages Adjacent to Communities + References No definition available. + Details
Name: | avb_NumberOfFinanceLeasesForParkingGaragesAdjacentToCommunities
Namespace Prefix: | avb_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of Office Leases + References No definition available. + Details
Name: | avb_NumberOfOfficeLeases
Namespace Prefix: | avb_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of operating apartment communities owned (or in which a direct or indirect ownership interest is held). + References No definition available. + Details
Name: | avb_NumberOfOperatingApartmentCommunitiesOwned
Namespace Prefix: | avb_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the sum of the age of an employee at Retirement plus years of employment with the entity, which is considered as a criterion for Retirement. + References No definition available. + Details
Name: | avb_ShareBasedCompensationArrangementByShareBasedPaymentAwardAgeOfEmployeeAtRetirementPlusYearsOfEmployment
Namespace Prefix: | avb_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the compensation (base salary plus annual cash bonus) multiplier considered for executives terminated. + References No definition available. + Details
Name: | avb_ShareBasedCompensationArrangementByShareBasedPaymentAwardCompensationMultiplier
Namespace Prefix: | avb_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the time period that an employee will have to exercise any options held upon termination without cause or retirement. + References No definition available. + Details
Name: | avb_ShareBasedCompensationArrangementByShareBasedPaymentAwardExercisePeriodForOptionsHeldUponTerminationWithoutCauseOrRetirement
Namespace Prefix: | avb_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the period of the non-compete agreement entered into by an employee. + References No definition available. + Details
Name: | avb_ShareBasedCompensationArrangementByShareBasedPaymentAwardRequisitePeriodOfNonCompeteAgreement
Namespace Prefix: | avb_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the minimum period of written notice to be provided by an employee for communicating his intention to retire. + References No definition available. + Details
Name: | avb_ShareBasedCompensationArrangementByShareBasedPaymentAwardRequisitePeriodOfWrittenNoticeForRetirement
Namespace Prefix: | avb_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the age of an employee that is considered for Retirement, which results in vesting of the equity-based payment award. + References No definition available. + Details
Name: | avb_ShareBasedCompensationArrangementByShareBasedPaymentAwardRequisiteRetirementAge
Namespace Prefix: | avb_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the period following a sale within which if an employee, not covered by a severance agreement, terminates his employment, receives a lump sum payment. + References No definition available. + Details
Name: | avb_ShareBasedCompensationArrangementByShareBasedPaymentAwardTerminationPeriodFollowingSaleEvent
Namespace Prefix: | avb_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Present value of lessee's discounted obligation for lease payments from finance lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977 + Details
Name: | us-gaap_FinanceLeaseLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount, after accumulated amortization, of right-of-use asset from finance lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977 + Details
Name: | us-gaap_FinanceLeaseRightOfUseAsset
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of operating lease expense. Excludes sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918638-209977 + Details
Name: | us-gaap_OperatingLeaseExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Present value of lessee's discounted obligation for lease payments from operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977 + Details
Name: | us-gaap_OperatingLeaseLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of lessee's right to use underlying asset under operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977 + Details
Name: | us-gaap_OperatingLeaseRightOfUseAsset
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Cash received for the settlement of litigation during the current period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3536-108585 + Details
Name: | us-gaap_ProceedsFromLegalSettlements
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=avb_PropertiesOnLandSubjectToLandLeasesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=avb_AssetsHeldunderOperatingLeasesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=avb_AssetsHeldunderFinanceLeasesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_StockCompensationPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=avb_OfficerSeveranceProgramMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_TitleOfIndividualAxis=avb_VicePresidentAndSeniorVicePresidentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_TitleOfIndividualAxis=avb_ExecutiveVicePresidentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_TitleOfIndividualAxis=srt_ChiefExecutiveOfficerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=avb_FormerDevelopmentRightMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=avb_AvalonTowersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=avb_MemorialHeightsVillagesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |