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Stock-Based Compensation Plans (Details 2) (USD $)
In Thousands, except Share data, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Stock Options      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Intrinsic value of options exercised $ 20,028us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
/ us-gaap_AwardTypeAxis
= avb_EmployeeAndDirectorsStockOptionsMember		 $ 2,395us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
/ us-gaap_AwardTypeAxis
= avb_EmployeeAndDirectorsStockOptionsMember		 $ 26,746us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
/ us-gaap_AwardTypeAxis
= avb_EmployeeAndDirectorsStockOptionsMember
2009 Plan      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Number of Options (in shares) 340,062us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan2009Member		    
Options outstanding intrinsic value 13,849us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan2009Member		    
Options exercisable intrinsic value 8,647us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan2009Member		    
Options exercisable weighted average contractual life (in years) 7 years 3 months 18 days    
1994 Plan      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Number of Options (in shares) 272,402us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan1994Member		    
Options outstanding intrinsic value 15,915us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan1994Member		    
Options exercisable intrinsic value $ 15,915us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan1994Member		    
Options exercisable weighted average contractual life (in years) 2 years 6 months    
40.00 - 49.99 | 1994 Plan      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Number of Options (in shares) 43,806us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan1994Member
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= avb_ExercisePriceRangeTwoMember		    
Exercise Price, lower limit (in dollars per share) $ 40.00us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan1994Member
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= avb_ExercisePriceRangeTwoMember		    
Exercise Price, upper limit (in dollars per share) $ 49.99us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan1994Member
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= avb_ExercisePriceRangeTwoMember		    
Weighted Average Remaining Contractual Term 4 years 1 month 6 days    
60.00 - 69.99 | 1994 Plan      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Number of Options (in shares) 92us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan1994Member
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= avb_ExercisePriceRangeThreeMember		    
Exercise Price, lower limit (in dollars per share) $ 60.00us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan1994Member
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= avb_ExercisePriceRangeThreeMember		    
Exercise Price, upper limit (in dollars per share) $ 69.99us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan1994Member
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= avb_ExercisePriceRangeThreeMember		    
Weighted Average Remaining Contractual Term 0 years 1 month 6 days    
70.00 - 79.99 | 2009 Plan      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Number of Options (in shares) 32,821us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan2009Member
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= avb_ExercisePriceRangeFourMember		    
Exercise Price, lower limit (in dollars per share) $ 70.00us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan2009Member
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= avb_ExercisePriceRangeFourMember		    
Exercise Price, upper limit (in dollars per share) $ 79.99us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan2009Member
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= avb_ExercisePriceRangeFourMember		    
Weighted Average Remaining Contractual Term 5 years 1 month 6 days    
70.00 - 79.99 | 1994 Plan      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Number of Options (in shares) 730us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan1994Member
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= avb_ExercisePriceRangeFourMember		    
Exercise Price, lower limit (in dollars per share) $ 70.00us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan1994Member
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= avb_ExercisePriceRangeFourMember		    
Exercise Price, upper limit (in dollars per share) $ 79.99us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan1994Member
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= avb_ExercisePriceRangeFourMember		    
Weighted Average Remaining Contractual Term 0 years 6 months    
80.00 - 89.99 | 1994 Plan      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Number of Options (in shares) 66,101us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan1994Member
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= avb_ExercisePriceRangeFiveMember		    
Exercise Price, lower limit (in dollars per share) $ 80.00us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan1994Member
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= avb_ExercisePriceRangeFiveMember		    
Exercise Price, upper limit (in dollars per share) $ 89.99us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan1994Member
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= avb_ExercisePriceRangeFiveMember		    
Weighted Average Remaining Contractual Term 3 years 1 month 6 days    
90.00 - 99.99 | 1994 Plan      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Number of Options (in shares) 52,720us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan1994Member
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= avb_ExercisePriceRangeSixMember		    
Exercise Price, lower limit (in dollars per share) $ 90.00us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan1994Member
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= avb_ExercisePriceRangeSixMember		    
Exercise Price, upper limit (in dollars per share) $ 99.99us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan1994Member
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= avb_ExercisePriceRangeSixMember		    
Weighted Average Remaining Contractual Term 1 year 1 month 6 days    
110.00 - 119.99 | 2009 Plan      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Number of Options (in shares) 51,808us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan2009Member
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= avb_ExercisePriceRangeEightMember		    
Exercise Price, lower limit (in dollars per share) $ 110us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan2009Member
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= avb_ExercisePriceRangeEightMember		    
Exercise Price, upper limit (in dollars per share) $ 119.99us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan2009Member
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= avb_ExercisePriceRangeEightMember		    
Weighted Average Remaining Contractual Term 6 years 1 month 6 days    
120.00 - 129.99 | 2009 Plan      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Number of Options (in shares) 63,961us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan2009Member
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= avb_ExercisePriceRangeElevenMember		    
Exercise Price, lower limit (in dollars per share) $ 120us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan2009Member
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= avb_ExercisePriceRangeElevenMember		    
Exercise Price, upper limit (in dollars per share) $ 129.99us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan2009Member
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= avb_ExercisePriceRangeElevenMember		    
Weighted Average Remaining Contractual Term 8 years 2 months 12 days    
130.00 - 139.99 | 2009 Plan      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Number of Options (in shares) 189,973us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan2009Member
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= avb_ExercisePriceRangeNineMember		    
Exercise Price, lower limit (in dollars per share) $ 130us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan2009Member
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= avb_ExercisePriceRangeNineMember		    
Exercise Price, upper limit (in dollars per share) $ 139.99us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan2009Member
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= avb_ExercisePriceRangeNineMember		    
Weighted Average Remaining Contractual Term 7 years 7 months 6 days    
140.00 - 149.99 | 2009 Plan      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Number of Options (in shares) 1,499us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan2009Member
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= avb_ExercisePriceRangeTenMember		    
Exercise Price, lower limit (in dollars per share) $ 140us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan2009Member
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= avb_ExercisePriceRangeTenMember		    
Exercise Price, upper limit (in dollars per share) $ 149.99us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan2009Member
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= avb_ExercisePriceRangeTenMember		    
Weighted Average Remaining Contractual Term 7 years 6 months    
140.00 - 149.99 | 1994 Plan      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Number of Options (in shares) 108,953us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan1994Member
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= avb_ExercisePriceRangeTenMember		    
Exercise Price, lower limit (in dollars per share) $ 140us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan1994Member
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= avb_ExercisePriceRangeTenMember		    
Exercise Price, upper limit (in dollars per share) $ 149.99us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit
/ us-gaap_PlanNameAxis
= avb_StockOptionAndIncentivePlan1994Member
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= avb_ExercisePriceRangeTenMember		    
Weighted Average Remaining Contractual Term 2 years 1 month 6 days