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Organization and Basis of Presentation (Details 2) (USD $) | 3 Months Ended | 12 Months Ended
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Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Accounting Policies [Abstract] |  |  |  |  |  |  |  |  |  |  |
Minimum distribution of adjusted taxable income for deducting dividends from federally taxable income (as a percent) |  |  |  |  |  |  |  |  | 90.00%avb_MinimumPercentageOfDistributionOfAdjustedTaxableIncomeForDeductingDividendsFromFederallyTaxableIncome |  |
Minimum distribution of REIT taxable income for federal income tax exemption (as a percent) |  |  |  |  |  |  |  |  | 100.00%avb_MinimumPercentageOfDistributionOfREITTaxableIncomeForFederalIncomeTaxExemption |  |
Income Taxes [Line Items] |  |  |  |  |  |  |  |  |  |  |
Unrecognized tax benefits | $ 0 us-gaap_UnrecognizedTaxBenefits |  |  |  | $ 0 us-gaap_UnrecognizedTaxBenefits |  |  |  | $ 0 us-gaap_UnrecognizedTaxBenefits | $ 0 us-gaap_UnrecognizedTaxBenefits |
Excise and Sales Taxes |  |  |  |  |  |  |  |  | 0 us-gaap_ExciseAndSalesTaxes | 0 us-gaap_ExciseAndSalesTaxes | 0 us-gaap_ExciseAndSalesTaxes
Excise Tax Refund | 0 avb_ExciseTaxRefund |  |  |  | 0 avb_ExciseTaxRefund |  |  |  | 0 avb_ExciseTaxRefund | 0 avb_ExciseTaxRefund | 0 avb_ExciseTaxRefund
Income tax expense |  |  |  |  |  |  |  |  | 9,368,000 us-gaap_IncomeTaxExpenseBenefit | 0 us-gaap_IncomeTaxExpenseBenefit | 0 us-gaap_IncomeTaxExpenseBenefit
Reconciliation of Income from Book Basis to Tax Basis Adjustment |  |  |  |  |  |  |  |  |  |  |
Net income attributable to common stockholders | 142,642,000 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | 241,100,000 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | 158,086,000 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | 141,739,000 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | 252,212,000 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | (10,715,000)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | 36,218,000 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | 75,427,000 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | 683,567,000 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | 353,141,000 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | 423,869,000 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
GAAP gain on sale of communities (in excess of) less than tax gain |  |  |  |  |  |  |  |  | 17,688,000 avb_ReconciliationOfIncomeFromBookBasisToTaxBasisGainOnSaleOfCommunities | 29,388,000 avb_ReconciliationOfIncomeFromBookBasisToTaxBasisGainOnSaleOfCommunities | 37,525,000 avb_ReconciliationOfIncomeFromBookBasisToTaxBasisGainOnSaleOfCommunities
Depreciation/amortization timing differences on real estate |  |  |  |  |  |  |  |  | 42,195,000 avb_ReconciliationOfIncomeFromBookBasisToTaxBasisDepreciationAndAmortization | 180,293,000 avb_ReconciliationOfIncomeFromBookBasisToTaxBasisDepreciationAndAmortization | 9,572,000 avb_ReconciliationOfIncomeFromBookBasisToTaxBasisDepreciationAndAmortization
Deductible acquisition costs |  |  |  |  |  |  |  |  | (7,681,000)avb_ReconciliationOfIncomeFromBookBasisToTaxBasisDeductibleAcquisitionCosts | (26,427,000)avb_ReconciliationOfIncomeFromBookBasisToTaxBasisDeductibleAcquisitionCosts | 0 avb_ReconciliationOfIncomeFromBookBasisToTaxBasisDeductibleAcquisitionCosts
Amortization of debt/mark to market interest |  |  |  |  |  |  |  |  | (38,202,000)avb_ReconciliationOfIncomeFromBookBasisToTaxBasisMarkToMarketInterest | (31,965,000)avb_ReconciliationOfIncomeFromBookBasisToTaxBasisMarkToMarketInterest | 0 avb_ReconciliationOfIncomeFromBookBasisToTaxBasisMarkToMarketInterest
Tax compensation expense less than (in excess of) GAAP |  |  |  |  |  |  |  |  | (6,789,000)avb_ReconciliationOfIncomeFromBookBasisToTaxBasisCompensationExpense | 12,886,000 avb_ReconciliationOfIncomeFromBookBasisToTaxBasisCompensationExpense | (26,314,000)avb_ReconciliationOfIncomeFromBookBasisToTaxBasisCompensationExpense
Casualty and impairment loss |  |  |  |  |  |  |  |  | 0 avb_ReconciliationOfIncomeFromBookBasisToTaxBasisCasualtyAndImpairmentLoss | 0 avb_ReconciliationOfIncomeFromBookBasisToTaxBasisCasualtyAndImpairmentLoss | 1,449,000 avb_ReconciliationOfIncomeFromBookBasisToTaxBasisCasualtyAndImpairmentLoss
Other adjustments |  |  |  |  |  |  |  |  | (39,726,000)avb_ReconciliationOfIncomeFromBookBasisToTaxBasisOtherAdjustments | 1,018,000 avb_ReconciliationOfIncomeFromBookBasisToTaxBasisOtherAdjustments | (9,034,000)avb_ReconciliationOfIncomeFromBookBasisToTaxBasisOtherAdjustments
Taxable net income |  |  |  |  |  |  |  |  | 651,052,000 avb_ReconciliationOfIncomeFromBookBasisToTaxBasisNetIncomeLossTaxBasis | 518,334,000 avb_ReconciliationOfIncomeFromBookBasisToTaxBasisNetIncomeLossTaxBasis | 437,067,000 avb_ReconciliationOfIncomeFromBookBasisToTaxBasisNetIncomeLossTaxBasis
Tax components of common stock dividends declared |  |  |  |  |  |  |  |  |  |  |
Ordinary income (as a percent) |  |  |  |  |  |  |  |  | 62.00%avb_CommonStockDividendsOrdinaryTaxableDistributionPercentage | 42.00%avb_CommonStockDividendsOrdinaryTaxableDistributionPercentage | 47.00%avb_CommonStockDividendsOrdinaryTaxableDistributionPercentage
15% capital gain (20% for 2013) (as a percent) |  |  |  |  |  |  |  |  | 29.00%avb_CommonStockDividendsLongTermCapitalGainPercentage | 40.00%avb_CommonStockDividendsLongTermCapitalGainPercentage | 33.00%avb_CommonStockDividendsLongTermCapitalGainPercentage
Capital gain tax rate (as a percent) |  |  |  |  |  |  |  |  | 20.00%avb_CapitalGainTaxRate | 20.00%avb_CapitalGainTaxRate | 15.00%avb_CapitalGainTaxRate
Unrecaptured 1250 gain (as a percent) |  |  |  |  |  |  |  |  | 9.00%avb_CommonStockDividendsUnrecapturedSection1250GainPercentage | 18.00%avb_CommonStockDividendsUnrecapturedSection1250GainPercentage | 20.00%avb_CommonStockDividendsUnrecapturedSection1250GainPercentage
Deferred Financing Costs |  |  |  |  |  |  |  |  |  |  |
Accumulated amortization of deferred finance costs | $ 24,444,000 us-gaap_AccumulatedAmortizationDeferredFinanceCosts |  |  |  | $ 19,719,000 us-gaap_AccumulatedAmortizationDeferredFinanceCosts |  |  |  | $ 24,444,000 us-gaap_AccumulatedAmortizationDeferredFinanceCosts | $ 19,719,000 us-gaap_AccumulatedAmortizationDeferredFinanceCosts |

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- Definition Represents the minimum percentage of adjusted taxable income to be distributed as a condition for deducting dividends paid from Federally taxable income as applicable to a corporate real estate investment trust. + References No definition available. + Details
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- Definition Represents the depreciation/amortization timing differences on real estate which are deducted from book income but not deductible for tax purposes. + References No definition available. + Details
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- Definition The amount of excise and sales taxes included in sales and revenues, which are then deducted as a cost of sales. Includes excise taxes, which are applied to specific types of transactions or items (such as gasoline or alcohol); and sales, use and value added taxes, which are applied to a broad class of revenue-producing transactions involving a wide range of goods and services. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 45 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6408196&loc=d3e61097-111654 + Details
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