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Real Estate Disposition Activities (Details 2) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
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Mar. 31, 2015 land_parcel community | Mar. 31, 2014
Summary of income from discontinued operations |  |
Rental income | $ 0 us-gaap_DisposalGroupIncludingDiscontinuedOperationRentalIncome | $ 579 us-gaap_DisposalGroupIncludingDiscontinuedOperationRentalIncome
Operating and other expenses | 0 us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense | (269)us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense
Depreciation expense | 0 us-gaap_DepreciationAndAmortizationDiscontinuedOperations | 0 us-gaap_DepreciationAndAmortizationDiscontinuedOperations
Income from discontinued operations | $ 0 us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax | $ 310 us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax
Number Of Communities Held For Sale | 1 avb_NumberOfCommunitiesHeldForSale |
Number of Land Parcels Held For Sale | 1 avb_NumberofLandParcelsHeldForSale |

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- Definition Number of Land Parcels Held For Sale + References No definition available. + Details
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- Definition Amount of expense from discontinued operations, that reflects the allocation of the cost of tangible and intangible assets over the assets' useful lives. + References No definition available. + Details
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- Definition After tax income (loss) from operations of a business component (exclusive of any gain (loss) on disposal, or provision therefore) during the reporting period, until its disposal. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e957-107759 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760 + Details
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- Definition Amount of operating expenses attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760 + Details
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- Definition Amount of rental income attributable to the disposal group, including a component of the entity (discontinued operation). + References No definition available. + Details
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