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Stock-Based Compensation Plans (Details 2) (USD $)
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Sep. 09, 2014
Additional disclosures      
Stock issued in connection with stock grants (in shares) 154,645us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationGross 104,060us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationGross  
Baseline share value (in dollars per share)     $ 155.83us-gaap_SharePrice
Stock-based compensation expense $ 3,883,000us-gaap_AllocatedShareBasedCompensationExpense $ 3,154,000us-gaap_AllocatedShareBasedCompensationExpense  
Capitalized stock-based compensation cost 3,244,000us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount 1,435,000us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount  
Restricted stock      
Additional disclosures      
Conversion of restricted stock units (in shares) 95,826avb_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsConversionofShares
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
   
Restricted stock granted (in shares) 58,819us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
   
Share Based Compensation Arrangement by Share Based Payment Award Equity Instruments Other than Options Issued in Period Fair Value 10,199,000avb_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsIssuedInPeriodFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
   
Outstanding unvested shares granted 259,878us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
   
Shares vested 84,804avb_ShareBasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodIncludingConversionOfUnits
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
   
Conversion of restricted units 6,685avb_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsVestedinPeriodConversionofRestrictedUnits
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
   
Restricted stock awards 78,119avb_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsVestedinPeriodRestrictedAwards
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
   
Total fair value of shares vested 10,046,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
8,763,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
 
Restricted stock | Minimum      
Additional disclosures      
Grant date fair value per share (in dollars per share) $ 115.83us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
   
Restricted stock | Maximum      
Additional disclosures      
Grant date fair value per share (in dollars per share) $ 173.39us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
   
Restricted stock units      
Additional disclosures      
Restricted stock granted (in shares) 82,812us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
   
Restricted stock earned based on total shareholder return metrics related to common stock (in units) 53,164avb_SharebasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodBasedOnTotalShareholderMetrics
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
   
Restricted stock earned based on operating performance and leverage metrics 29,648avb_SharebasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodBasedOnFinancialMetrics
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
   
Baseline share value (in dollars per share) $ 166.23us-gaap_SharePrice
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
   
Dividend yield (as a percent) 3.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
   
Estimated volatility, Minimum (as a percent) 14.70%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
   
Estimated volatility, Maximum (as a percent) 17.40%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
   
Historical volatility (as a percent) 50.00%avb_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageHistoricalVolatilityRate
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
   
Implied volatility (as a percent) 50.00%avb_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageImpliedVolatilityRate
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
   
Risk-free interest rate, minimum (as a percent) 0.07%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
   
Risk-free interest rate, maximum (as a percent) 1.09%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
   
Average estimated fair value (in dollars per share) $ 139.18us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
   
Unrecognized compensation cost for unvested restricted stock 12,340,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
   
Stock Options      
Additional disclosures      
Unrecognized compensation cost for unvested stock options 787,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions
/ us-gaap_AwardTypeAxis
= avb_EmployeeAndDirectorsStockOptionsMember
   
Weighted average period for recognition of unrecognized compensation cost 0 years 10 months 24 days    
Restricted stock and restricted stock units      
Additional disclosures      
Unrecognized compensation cost for unvested restricted stock $ 35,685,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions
/ us-gaap_AwardTypeAxis
= avb_RestrictedStockAndRestrictedStockUnitsMember
   
Weighted average period for recognition of unrecognized compensation cost 3 years 10 months 24 days