XML 39 R28.htm IDEA: XBRL DOCUMENT
v3.19.2

Organization, Basis of Presentation and Significant Accounting Policies (Details) $ in Thousands | Jun. 30, 2019 USD ($) state community home | Jan. 01, 2019 USD ($)
--- | --- | ---
Accounting Policies [Abstract] |  |
Number of operating apartment communities | community | 273 |
Number of apartment homes included in operating apartment communities owned | home | 79,161 |
Number of states where operating apartment communities owned are located | state | 12 |
Number of Communities with Apartments under Reconstruction | community | 7 |
Number of Apartment Homes under Reconstruction | home | 3,026 |
Number of owned communities under construction | community | 21 |
Expected number of apartment homes under construction | home | 7,023 |
Communities under development rights | community | 28 |
Estimated number of apartment homes in communities to be developed | home | 9,004 |
Real Estate Properties [Line Items] |  |
Operating lease assets | $ | $ 100,377 |
Operating lease obligation | $ | $ 117,938 |
Accounting Standards Update 2016-02 |  |
Real Estate Properties [Line Items] |  |
Operating lease assets | $ |  | $ 122,276
Operating lease obligation | $ |  | $ 122,276

X
- Definition Additional number of communities owned (or in which a direct or indirect ownership interest is held) that can be expected to be developed. + References No definition available. + Details
Name: | avb_AdditionalNumberofCommunitiesExpectedToBeDeveloped
Namespace Prefix: | avb_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Estimated number of apartment homes in communities awaiting development. + References No definition available. + Details
Name: | avb_EstimatedNumberOfApartmentHomesInCommunitiesExpectedToBeDeveloped
Namespace Prefix: | avb_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Expected aggregate number of homes to be constructed. + References No definition available. + Details
Name: | avb_ExpectedAggregateNumberOfApartmentHomesToBeConstructed
Namespace Prefix: | avb_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of apartment homes under reconstruction within communities with apartments under reconstruction. + References No definition available. + Details
Name: | avb_NumberOfApartmentHomesUnderReconstruction
Namespace Prefix: | avb_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of communities with apartments under reconstruction. + References No definition available. + Details
Name: | avb_NumberOfCommunitiesWithApartmentsUnderReconstruction
Namespace Prefix: | avb_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of owned communities (or where a direct or indirect interest is owned) that are under construction. + References No definition available. + Details
Name: | avb_NumberOfOwnedCommunitiesUnderConstruction
Namespace Prefix: | avb_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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

X
- Definition The number of real estate properties owned as of the balance sheet date. + References No definition available. + Details
Name: | us-gaap_NumberOfRealEstateProperties
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of states the entity operates in as of the balance sheet date. + References No definition available. + Details
Name: | us-gaap_NumberOfStatesInWhichEntityOperates
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of units in a real estate property owned as of the balance sheet date. + References No definition available. + Details
Name: | us-gaap_NumberOfUnitsInRealEstateProperty
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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=77888419&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=77888419&loc=SL77918627-209977 + Details
Name: | us-gaap_OperatingLeaseRightOfUseAsset
Namespace Prefix: | us-gaap_
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_RealEstatePropertiesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201602Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |