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Subsequent Events (Details) (Subsequent event, Archstone Memorial Heights [Member], USD $) In Thousands, unless otherwise specified | 1 Months Ended
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Oct. 31, 2014 home
Subsequent event | Archstone Memorial Heights [Member] |
Subsequent events |
Number of apartment homes sold | 556
Proceeds from sale of real estate | $ 105,500

X
- Definition Represents the number of apartment homes sold during the period. + References No definition available. + Details
Name: | avb_NumberOfApartmentHomesSold
Namespace Prefix: | avb_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Definition Cash received for the sale of real estate that is not part of an investing activity during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + Details
Name: | us-gaap_ProceedsFromSaleOfRealEstate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration