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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) (USD $) | 3 Months Ended
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Mar. 31, 2015 | Mar. 31, 2014
Supplemental disclosures of non-cash investing and financing activities |  |
Stock issued in connection with stock grants (in shares) | 154,645 us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationGross | 104,060 us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationGross
Stock issued in connection with stock grants, value |  | $ 13,331,000 us-gaap_StockIssuedDuringPeriodValueShareBasedCompensationGross
Common stock issued through the dividend reinvestment plan (in shares) | 484 us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan | 638 us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan
Common stock issued through the dividend reinvestment plan | 86,000 us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan | 78,000 us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan
Number of shares withheld to satisfy employees' tax withholding and other liabilities | 32,887 us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation | 33,365 us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation
Shares withheld to satisfy employees' tax withholding and other liabilities, value | 5,338,000 us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation | 3,567,000 us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation
Dividends declared but not paid | 165,241,000 us-gaap_DividendsPayableCurrentAndNoncurrent | 150,304,000 us-gaap_DividendsPayableCurrentAndNoncurrent
(Decrease) increase in redeemable noncontrolling interests | (2,065,000)avb_MinorityInterestIncreaseDecreaseFromPutOptionRedemptionValueAdjustment | 1,081,000 avb_MinorityInterestIncreaseDecreaseFromPutOptionRedemptionValueAdjustment
Cash flow hedge losses reclassified to earnings | 1,565,000 us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax | 1,573,000 us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax
Restricted stock |  |
Supplemental disclosures of non-cash investing and financing activities |  |
Conversion of restricted stock units (in shares) | 95,826 avb_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsConversionofShares / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember |
Restricted stock granted (in shares) | 58,819 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember |
Fair value of shares issued | 10,199,000 avb_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsIssuedInPeriodFairValue / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember |
Avalon at Edgewater [Member] |  |
Supplemental disclosures of non-cash investing and financing activities |  |
Insurance Proceeds | 22,000,000 avb_InsuranceProceeds / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = avb_AvalonAtEdgewaterMember |
Casualty Loss | $ 21,844,000 avb_CasualtyLoss / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = avb_AvalonAtEdgewaterMember |

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