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Segment Reporting (Details 2) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Segment Reporting [Abstract]    
Rental income from real estate assets sold or held for sale, not classified as discontinued operations $ 1,709avb_RevenueFromAssetsHeldforSaleNotClassifiedasDiscontinuedOperations $ 8,266avb_RevenueFromAssetsHeldforSaleNotClassifiedasDiscontinuedOperations
Operating expenses from real estate assets sold or held for sale, not classified as discontinued operations (873)avb_OperatingExpensesFromAssetsHeldforSaleNotClassifiedasDiscontinuedOperations (3,295)avb_OperatingExpensesFromAssetsHeldforSaleNotClassifiedasDiscontinuedOperations
Income (Loss) From Assets Held for Sale, Not Classified as Discontinued Operations $ 836avb_DisposalGroupNotDiscontinuedOperationNetOperatingIncomeFromAssetsHeldforSaleNotClassifiedasDiscontinuedOperations $ 4,971avb_DisposalGroupNotDiscontinuedOperationNetOperatingIncomeFromAssetsHeldforSaleNotClassifiedasDiscontinuedOperations