$AVB
AVALONBAY COMMUNITIES INC Stock $avb

$avb Overview Financials Valuation SEC Filings Company Website

2020 Q4 Form 10-Q Financial Statement

#000091591220000027 Filed on November 04, 2020

Income Statement

Concept	2020 Q4	2020 Q3	2019 Q3
Revenue	$555.8M	$567.4M	$587.6M
YoY Change	-6.36%	-3.44%	2.02%
Cost Of Revenue	$213.1M	$212.8M	$197.8M
YoY Change	11.92%	7.58%	2.22%
Gross Profit	$342.7M	$354.6M	$389.8M
YoY Change	-15.0%	-9.03%	1.91%
Gross Profit Margin	61.66%	62.5%	66.34%
Selling, General & Admin	$13.50M	$14.00M	$12.80M
YoY Change	7.14%	9.38%	-12.93%
% of Gross Profit	3.94%	3.95%	3.28%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$177.8M	$175.3M	$165.5M
YoY Change	3.73%	5.97%	5.7%
% of Gross Profit	51.88%	49.45%	42.45%
Operating Expenses	$191.3M	$189.4M	$427.8M
YoY Change	3.97%	-55.73%	1.74%
Operating Profit	$151.4M	$363.7M	$406.6M
YoY Change	-30.93%	-10.54%	5.78%
Interest Expense	-$51.90M	$53.25M	$51.49M
YoY Change	12.1%	3.41%	-4.81%
% of Operating Profit	-34.28%	14.64%	12.66%
Other Income/Expense, Net		-$567.0K
YoY Change
Pretax Income	$338.9M	$147.7M	$290.9M
YoY Change	99.94%	-49.23%	51.16%
Income Tax	-$2.200M	-$27.00K	$11.18M
% Of Pretax Income	-0.65%	-0.02%	3.84%
Net Earnings	$341.1M	$147.7M	$279.7M
YoY Change	103.43%	-47.19%	45.37%
Net Earnings / Revenue	61.37%	26.03%	47.6%
Basic Earnings Per Share		$1.05	$2.00
Diluted Earnings Per Share	$2.443M	$1.05	$2.00
COMMON SHARES
Basic Shares Outstanding	139.6M shares	140.3M shares	139.3M shares
Diluted Shares Outstanding		140.6M shares	139.9M shares

Balance Sheet

Concept	2020 Q4	2020 Q3	2019 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$217.0M	$88.00M	$246.0M
YoY Change	442.5%	-64.23%	339.29%
Cash & Equivalents	$217.0M	$87.53M	$246.4M
Short-Term Investments
Other Short-Term Assets	$208.0M	$207.0M	$169.0M
YoY Change	26.06%	22.49%	-14.21%
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets	$425.0M	$295.0M	$415.0M
YoY Change	107.32%	-28.92%	64.03%
LONG-TERM ASSETS
Property, Plant & Equipment	$18.39B	$18.46B	$18.24B
YoY Change	-0.91%	1.17%	1.73%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$203.0M	$194.0M	$207.0M
YoY Change	22.29%	-6.28%	18.97%
Other Assets	$152.0M	$169.0M	$163.0M
YoY Change	-3.8%	3.68%	-40.07%
Total Long-Term Assets	$18.77B	$18.85B	$18.65B
YoY Change	-0.75%	1.09%	1.28%
TOTAL ASSETS
Total Short-Term Assets	$425.0M	$295.0M	$415.0M
Total Long-Term Assets	$18.77B	$18.85B	$18.65B
Total Assets	$19.20B	$19.14B	$19.06B
YoY Change	0.41%	0.44%	2.13%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$94.00M	$88.00M	$94.00M
YoY Change	2.17%	-6.38%	2.17%
Accrued Expenses	$485.0M	$517.0M	$491.0M
YoY Change	9.98%	5.3%	33.79%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$860.0M	$888.0M	$861.0M
YoY Change	6.17%	3.14%	18.92%
LONG-TERM LIABILITIES
Long-Term Debt	$7.585B	$7.584B	$7.381B
YoY Change	3.68%	2.75%	-2.02%
Other Long-Term Liabilities	$0.00	$0.00	$0.00
YoY Change			-100.0%
Total Long-Term Liabilities	$7.585B	$7.584B	$7.381B
YoY Change	3.68%	2.75%	-2.03%
TOTAL LIABILITIES
Total Short-Term Liabilities	$860.0M	$888.0M	$861.0M
Total Long-Term Liabilities	$7.585B	$7.584B	$7.381B
Total Liabilities	$8.444B	$8.472B	$8.242B
YoY Change	3.9%	2.79%	-0.2%
SHAREHOLDERS EQUITY
Retained Earnings	$126.0M	$29.71M	$329.3M
YoY Change	-55.46%	-90.98%	96.09%
Common Stock	$1.395M	$1.398M	$1.397M
YoY Change	-0.78%	0.07%	1.09%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$10.75B	$10.67B	$10.81B
YoY Change
Total Liabilities & Shareholders Equity	$19.20B	$19.14B	$19.06B
YoY Change	0.41%	0.44%	2.13%

Cashflow Statement

Concept	2020 Q4	2020 Q3	2019 Q3
OPERATING ACTIVITIES
Net Income	$341.1M	$147.7M	$279.7M
YoY Change	103.43%	-47.19%	45.37%
Depreciation, Depletion And Amortization	$177.8M	$175.3M	$165.5M
YoY Change	3.73%	5.97%	5.7%
Cash From Operating Activities	$257.5M	$333.2M	$377.2M
YoY Change	-16.1%	-11.66%	6.16%
INVESTING ACTIVITIES
Capital Expenditures	-$317.0M	-$214.4M	-$410.5M
YoY Change	-27.63%	-47.77%	11.79%
Acquisitions
YoY Change
Other Investing Activities	$458.9M	$78.30M	$243.4M
YoY Change	32678.57%	-67.83%	29.12%
Cash From Investing Activities	$141.9M	-$136.2M	-$167.2M
YoY Change	-132.49%	-18.54%	-6.49%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-268.3M	-430.3M	-205.3M
YoY Change	246.64%	109.6%	-16.14%
NET CHANGE
Cash From Operating Activities	257.5M	333.2M	377.2M
Cash From Investing Activities	141.9M	-136.2M	-167.2M
Cash From Financing Activities	-268.3M	-430.3M	-205.3M
Net Change In Cash	131.1M	-233.3M	4.700M
YoY Change	-163.27%	-5063.83%	-106.88%
FREE CASH FLOW
Cash From Operating Activities	$257.5M	$333.2M	$377.2M
Capital Expenditures	-$317.0M	-$214.4M	-$410.5M
Free Cash Flow	$574.5M	$547.6M	$787.7M
YoY Change	-22.88%	-30.48%	9.02%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Entity Central Index Key EntityCentralIndexKey	0000915912
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Period End Date DocumentPeriodEndDate	2020-09-30
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Amendment Flag AmendmentFlag	false
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Document Type DocumentType	10-Q
	dei	Entity File Number EntityFileNumber	1-12672
	dei	Entity Registrant Name EntityRegistrantName	AVALONBAY COMMUNITIES, INC.
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MD
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	77-0404318
	dei	Entity Address Address Line1 EntityAddressAddressLine1	4040 Wilson Blvd., Suite 1000
	dei	Entity Address City Or Town EntityAddressCityOrTown	Arlington
	dei	Entity Address State Or Province EntityAddressStateOrProvince	VA
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	22203
	dei	City Area Code CityAreaCode	703
	dei	Local Phone Number LocalPhoneNumber	329-6300
	dei	Security12b Title Security12bTitle	Common Stock, par value $0.01 per share
	dei	Trading Symbol TradingSymbol	AVB
	dei	Security Exchange Name SecurityExchangeName	NYSE
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
CY2020Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	139608983	shares
CY2020Q3	us-gaap	Land And Land Improvements LandAndLandImprovements	4392228000	USD
CY2019Q4	us-gaap	Land And Land Improvements LandAndLandImprovements	4299162000	USD
CY2020Q3	us-gaap	Investment Building And Building Improvements InvestmentBuildingAndBuildingImprovements	17093580000	USD
CY2019Q4	us-gaap	Investment Building And Building Improvements InvestmentBuildingAndBuildingImprovements	16668496000	USD
CY2020Q3	us-gaap	Fixtures And Equipment Gross FixturesAndEquipmentGross	913687000	USD
CY2019Q4	us-gaap	Fixtures And Equipment Gross FixturesAndEquipmentGross	829242000	USD
CY2020Q3	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	22399495000	USD
CY2019Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	21796900000	USD
CY2020Q3	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	5644219000	USD
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CY2020Q3	us-gaap	Development In Process DevelopmentInProcess	1200502000	USD
CY2019Q4	us-gaap	Development In Process DevelopmentInProcess	1303751000	USD
CY2020Q3	us-gaap	Land Available For Development LandAvailableForDevelopment	43494000	USD
CY2019Q4	us-gaap	Land Available For Development LandAvailableForDevelopment	0	USD
CY2020Q3	us-gaap	Inventory Real Estate InventoryRealEstate	298429000	USD
CY2019Q4	us-gaap	Inventory Real Estate InventoryRealEstate	457809000	USD
CY2020Q3	us-gaap	Real Estate Heldforsale RealEstateHeldforsale	0	USD
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	us-gaap	Costs And Expenses CostsAndExpenses	1362534000	USD
	us-gaap	Costs And Expenses CostsAndExpenses	1265927000	USD
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	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	6770000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	780000	USD
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	avb	Gain Losson Saleof Other Investments Net Of Marketing And Administrative Costs GainLossonSaleofOtherInvestmentsNetOfMarketingAndAdministrativeCosts	4162000	USD
	avb	Gain Losson Saleof Other Investments Net Of Marketing And Administrative Costs GainLossonSaleofOtherInvestmentsNetOfMarketingAndAdministrativeCosts	-2526000	USD
	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	374000	USD
CY2020Q3	avb	Gain Losson Saleof Other Investments Net Of Marketing And Administrative Costs GainLossonSaleofOtherInvestmentsNetOfMarketingAndAdministrativeCosts	-646000	USD
CY2019Q3	avb	Gain Losson Saleof Other Investments Net Of Marketing And Administrative Costs GainLossonSaleofOtherInvestmentsNetOfMarketingAndAdministrativeCosts	-1108000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	147690000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	290893000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	485523000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	629610000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-27000	USD
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	11184000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1069000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	11178000	USD
CY2020Q3	us-gaap	Profit Loss ProfitLoss	147717000	USD
CY2019Q3	us-gaap	Profit Loss ProfitLoss	279709000	USD
	us-gaap	Profit Loss ProfitLoss	486592000	USD
	us-gaap	Profit Loss ProfitLoss	618432000	USD
CY2020Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	14000	USD
CY2019Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	32000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	90000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	108000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	147703000	USD
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	279677000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	486502000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	618324000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	1333000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-13644000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-17731000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-23763000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-2367000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-1746000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-6617000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-4825000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	151403000	USD
CY2019Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	267779000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	475388000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	599386000	USD
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.05
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.00
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.46
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.44
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.05
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.00
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.46
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.43
	us-gaap	Profit Loss ProfitLoss	486592000	USD
	us-gaap	Profit Loss ProfitLoss	618432000	USD
	us-gaap	Depreciation Depreciation	529508000	USD
	us-gaap	Depreciation Depreciation	490213000	USD
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	5617000	USD
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	5458000	USD
	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	1321000	USD
	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	1186000	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-9333000	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-602000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	17753000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	20810000	USD
	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-5204000	USD
	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-10787000	USD
	us-gaap	Noncash Project Abandonment Costs NoncashProjectAbandonmentCosts	2095000	USD
	us-gaap	Noncash Project Abandonment Costs NoncashProjectAbandonmentCosts	1080000	USD
	us-gaap	Derivative Instruments Loss Reclassified From Accumulated Oci Into Income Effective Portion DerivativeInstrumentsLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortion	6617000	USD
	us-gaap	Derivative Instruments Loss Reclassified From Accumulated Oci Into Income Effective Portion DerivativeInstrumentsLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortion	4825000	USD
	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	96823000	USD
	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	166223000	USD
	us-gaap	Gain Loss On Sale Of Other Investments GainLossOnSaleOfOtherInvestments	8174000	USD
	us-gaap	Gain Loss On Sale Of Other Investments GainLossOnSaleOfOtherInvestments	0	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	36332000	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	29804000	USD
	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	39363000	USD
	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	57556000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	962074000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1014922000	USD
	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	562334000	USD
	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	791551000	USD
	us-gaap	Payments To Acquire Other Real Estate PaymentsToAcquireOtherRealEstate	0	USD
	us-gaap	Payments To Acquire Other Real Estate PaymentsToAcquireOtherRealEstate	286804000	USD
	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	76860000	USD
	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	92825000	USD
	avb	Paymentsfor Capital Improvements Non Real Estate PaymentsforCapitalImprovementsNonRealEstate	24720000	USD
	avb	Paymentsfor Capital Improvements Non Real Estate PaymentsforCapitalImprovementsNonRealEstate	4223000	USD
	us-gaap	Increase Decrease In Construction Payables IncreaseDecreaseInConstructionPayables	-4095000	USD
	us-gaap	Increase Decrease In Construction Payables IncreaseDecreaseInConstructionPayables	-3390000	USD
	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	186090000	USD
	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	421735000	USD
	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	627467000	USD
	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	170604000	USD
	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	0	USD
	us-gaap	Payments To Acquire Mortgage Notes Receivable PaymentsToAcquireMortgageNotesReceivable	260000	USD
	us-gaap	Payments To Acquire Mortgage Notes Receivable PaymentsToAcquireMortgageNotesReceivable	565000	USD
	us-gaap	Proceeds From Sale And Collection Of Notes Receivable ProceedsFromSaleAndCollectionOfNotesReceivable	3419000	USD
	us-gaap	Proceeds From Sale And Collection Of Notes Receivable ProceedsFromSaleAndCollectionOfNotesReceivable	978000	USD
	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	9877000	USD
	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	694000	USD
	us-gaap	Payments To Acquire Businesses And Interest In Affiliates PaymentsToAcquireBusinessesAndInterestInAffiliates	23044000	USD
	us-gaap	Payments To Acquire Businesses And Interest In Affiliates PaymentsToAcquireBusinessesAndInterestInAffiliates	1253000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-321323000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-757204000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1599000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	207789000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	137458000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	661000000	USD
	us-gaap	Proceeds From Secured Notes Payable ProceedsFromSecuredNotesPayable	51000000	USD
	us-gaap	Proceeds From Secured Notes Payable ProceedsFromSecuredNotesPayable	30250000	USD
	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	125427000	USD
	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	160709000	USD
	us-gaap	Proceeds From Unsecured Notes Payable ProceedsFromUnsecuredNotesPayable	1296581000	USD
	us-gaap	Proceeds From Unsecured Notes Payable ProceedsFromUnsecuredNotesPayable	449804000	USD
	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	958681000	USD
	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	0	USD
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	11278000	USD
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	10910000	USD
	us-gaap	Payments For Proceeds From Hedge Financing Activities PaymentsForProceedsFromHedgeFinancingActivities	25135000	USD
	us-gaap	Payments For Proceeds From Hedge Financing Activities PaymentsForProceedsFromHedgeFinancingActivities	12309000	USD
	us-gaap	Proceeds From Payments To Minority Shareholders ProceedsFromPaymentsToMinorityShareholders	-59000	USD
	us-gaap	Proceeds From Payments To Minority Shareholders ProceedsFromPaymentsToMinorityShareholders	455000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	14752000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	15961000	USD
	us-gaap	Payments Of Capital Distribution PaymentsOfCapitalDistribution	36000	USD
	avb	Payment For Redemption Of Preferred Interest Obligation PaymentForRedemptionOfPreferredInterestObligation	1000000	USD
	us-gaap	Payments Of Capital Distribution PaymentsOfCapitalDistribution	34000	USD
	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	319000	USD
	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	336000	USD
	avb	Payment For Redemption Of Preferred Interest Obligation PaymentForRedemptionOfPreferredInterestObligation	1400000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-585965000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-140828000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	54786000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	116890000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	127614000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	217864000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	182400000	USD
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	334754000	USD
	us-gaap	Interest Paid Net InterestPaidNet	133913000	USD
	us-gaap	Interest Paid Net InterestPaidNet	114400000	USD
CY2020Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	87530000	USD
CY2019Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	246425000	USD
CY2020Q3	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	94870000	USD
CY2019Q3	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	88329000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	182400000	USD
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	334754000	USD
	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	1967	shares
	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	339000	USD
	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	73103	shares
	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	14752000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation Forfeited StockIssuedDuringPeriodValueShareBasedCompensationForfeited	1187000	USD
	us-gaap	Increase Decrease In Derivative Assets IncreaseDecreaseInDerivativeAssets	1413000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-6617000	USD
	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	1594	shares
	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	314000	USD
	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	83602	shares
	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	15961000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation Forfeited StockIssuedDuringPeriodValueShareBasedCompensationForfeited	305000	USD
	us-gaap	Increase Decrease In Derivative Liabilities IncreaseDecreaseInDerivativeLiabilities	17824000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-4825000	USD
CY2020Q3	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	275	community
CY2020Q3	us-gaap	Number Of Units In Real Estate Property NumberOfUnitsInRealEstateProperty	80292	home
CY2020Q3	us-gaap	Number Of States In Which Entity Operates NumberOfStatesInWhichEntityOperates	11	state
CY2020Q3	avb	Number Of Communities With Apartments Under Reconstruction NumberOfCommunitiesWithApartmentsUnderReconstruction	1	home
CY2020Q3	avb	Number Of Apartment Homes Under Reconstruction NumberOfApartmentHomesUnderReconstruction	344	home
CY2020Q3	avb	Number Of Owned Communities Under Construction NumberOfOwnedCommunitiesUnderConstruction	19	community
CY2020Q3	avb	Expected Aggregate Number Of Apartment Homes To Be Constructed ExpectedAggregateNumberOfApartmentHomesToBeConstructed	6384	home
	avb	Numberof Residential Condominium Units Sold NumberofResidentialCondominiumUnitsSold	59	residential_condominium
CY2020Q3	avb	Additional Numberof Communities Expected To Be Developed AdditionalNumberofCommunitiesExpectedToBeDeveloped	27	community
CY2020Q3	avb	Estimated Number Of Apartment Homes In Communities Expected To Be Developed EstimatedNumberOfApartmentHomesInCommunitiesExpectedToBeDeveloped	9320	home
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	140271574	shares
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	139340142	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	140366438	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	138931955	shares
CY2020Q3	us-gaap	Weighted Average Number Of Limited Partnership And General Partnership Unit Outstanding Basic And Diluted WeightedAverageNumberOfLimitedPartnershipAndGeneralPartnershipUnitOutstandingBasicAndDiluted	7500	shares
CY2019Q3	us-gaap	Weighted Average Number Of Limited Partnership And General Partnership Unit Outstanding Basic And Diluted WeightedAverageNumberOfLimitedPartnershipAndGeneralPartnershipUnitOutstandingBasicAndDiluted	7500	shares
	us-gaap	Weighted Average Number Of Limited Partnership And General Partnership Unit Outstanding Basic And Diluted WeightedAverageNumberOfLimitedPartnershipAndGeneralPartnershipUnitOutstandingBasicAndDiluted	7500	shares
	us-gaap	Weighted Average Number Of Limited Partnership And General Partnership Unit Outstanding Basic And Diluted WeightedAverageNumberOfLimitedPartnershipAndGeneralPartnershipUnitOutstandingBasicAndDiluted	7500	shares
CY2020Q3	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	324648	shares
CY2019Q3	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	505032	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	328865	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	498609	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	140603722	shares
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	139852674	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	140702803	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	139438064	shares
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	147703000	USD
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	279677000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	486502000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	618324000	USD
CY2020Q3	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	342000	USD
CY2019Q3	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	704000	USD
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	1158000	USD
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	1655000	USD
CY2020Q3	us-gaap	Undistributed Earnings UndistributedEarnings	147361000	USD
CY2019Q3	us-gaap	Undistributed Earnings UndistributedEarnings	278973000	USD
	us-gaap	Undistributed Earnings UndistributedEarnings	485344000	USD
	us-gaap	Undistributed Earnings UndistributedEarnings	616669000	USD
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	140271574	shares
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	139340142	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	140366438	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	138931955	shares
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.05
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.00
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.46
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.44
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	147703000	USD
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	279677000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	486502000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	618324000	USD
CY2020Q3	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	-12000	USD
CY2019Q3	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	-11000	USD
	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	-36000	USD
	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	-34000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	147715000	USD
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	279688000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	486538000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	618358000	USD
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	140603722	shares
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	139852674	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	140702803	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	139438064	shares
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.05
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.00
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.46
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.43
	us-gaap	Use Of Estimates UseOfEstimates	<div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Use of Estimates</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of financial statements in conformity with GAAP requires management to make certain estimates and assumptions. These estimates and assumptions affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the dates of the financial statements and the reported amounts of revenue and expenses during the reporting periods. Actual results could differ from those estimates.</span></div>
	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	ReclassificationsCertain reclassifications have been made to amounts in prior years' notes to financial statements to conform to current year presentations as a result of changes in held for sale classification, disposition activity and segment classification.
CY2020Q3	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	18755000	USD
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	43034000	USD
CY2020Q3	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	11221000	USD
CY2019Q3	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	15443000	USD
	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	33738000	USD
	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	50159000	USD
CY2020Q3	us-gaap	Notes Payable NotesPayable	7631099000	USD
CY2019Q4	us-gaap	Notes Payable NotesPayable	7355371000	USD
CY2020Q3	us-gaap	Line Of Credit LineOfCredit	0	USD
CY2019Q4	us-gaap	Line Of Credit LineOfCredit	0	USD
CY2020Q3	us-gaap	Long Term Debt LongTermDebt	7631099000	USD
CY2019Q4	us-gaap	Long Term Debt LongTermDebt	7355371000	USD
CY2020Q3	us-gaap	Pledged Assets Not Separately Reported Real Estate PledgedAssetsNotSeparatelyReportedRealEstate	1455524000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	10990198000	USD
CY2020Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	167971000	USD
CY2020Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-17603000	USD
CY2020Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-1949000	USD
CY2020Q1	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	471000	USD
CY2020Q1	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	-35000	USD
CY2020Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.59
CY2020Q1	us-gaap	Dividends Common Stock DividendsCommonStock	224083000	USD
CY2020Q1	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	-14107000	USD
CY2020Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	7781000	USD
CY2020Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	10912542000	USD
CY2020Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	170828000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-1461000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-2301000	USD
CY2020Q2	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	-146000	USD
CY2020Q2	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	1000	USD
CY2020Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.59
CY2020Q2	us-gaap	Dividends Common Stock DividendsCommonStock	224172000	USD
CY2020Q2	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	1188000	USD
CY2020Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	9724000	USD
CY2020Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	10870805000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	147703000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	1333000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-2367000	USD
CY2020Q3	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	62000	USD
CY2020Q3	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	-17000	USD
CY2020Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.59
CY2020Q3	us-gaap	Dividends Common Stock DividendsCommonStock	222694000	USD
CY2020Q3	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	105000	USD
CY2020Q3	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	137458000	USD
CY2020Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	8036000	USD
CY2020Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	10670242000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	10632606000	USD
CY2019Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	170366000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-7231000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-1468000	USD
CY2019Q1	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	-224000	USD
CY2019Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.52
CY2019Q1	us-gaap	Dividends Common Stock DividendsCommonStock	212166000	USD
CY2019Q1	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	141319000	USD
CY2019Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	7861000	USD
CY2019Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	10733999000	USD
CY2019Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	168281000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-2888000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-1611000	USD
CY2019Q2	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	-45000	USD
CY2019Q2	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	530000	USD
CY2019Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.52
CY2019Q2	us-gaap	Dividends Common Stock DividendsCommonStock	212549000	USD
CY2019Q2	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	50806000	USD
CY2019Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	10785000	USD
CY2019Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	10750530000	USD
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	279677000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-13644000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-1746000	USD
CY2019Q3	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	-113000	USD
CY2019Q3	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	118000	USD
CY2019Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.52
CY2019Q3	us-gaap	Dividends Common Stock DividendsCommonStock	212526000	USD
CY2019Q3	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	-717000	USD
CY2019Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	10002000	USD
CY2019Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	10815073000	USD
CY2020Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	280000000	shares
CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	280000000	shares
CY2020Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	50000000	shares
CY2019Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	50000000	shares
	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	1902	shares
	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	1967	shares
	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	73103	shares
	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	8685	shares
	us-gaap	Stock Issued During Period Shares Share Based Compensation Forfeited StockIssuedDuringPeriodSharesShareBasedCompensationForfeited	7421	shares
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	912733	shares
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	912733	shares
	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	150.58
CY2020Q3	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount1 StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	362560000	USD
CY2020Q3	avb	Equity Method Investment Net Income Loss Portion Attributable To Parent EquityMethodInvestmentNetIncomeLossPortionAttributableToParent	5611000	USD
CY2019Q3	avb	Equity Method Investment Net Income Loss Portion Attributable To Parent EquityMethodInvestmentNetIncomeLossPortionAttributableToParent	2175000	USD
	avb	Equity Method Investment Net Income Loss Portion Attributable To Parent EquityMethodInvestmentNetIncomeLossPortionAttributableToParent	8357000	USD
	avb	Equity Method Investment Net Income Loss Portion Attributable To Parent EquityMethodInvestmentNetIncomeLossPortionAttributableToParent	2377000	USD
CY2020Q3	avb	Equity Method Investments Amortization Of Excess Investment And Other EquityMethodInvestmentsAmortizationOfExcessInvestmentAndOther	-528000	USD
CY2019Q3	avb	Equity Method Investments Amortization Of Excess Investment And Other EquityMethodInvestmentsAmortizationOfExcessInvestmentAndOther	-532000	USD
	avb	Equity Method Investments Amortization Of Excess Investment And Other EquityMethodInvestmentsAmortizationOfExcessInvestmentAndOther	-1587000	USD
	avb	Equity Method Investments Amortization Of Excess Investment And Other EquityMethodInvestmentsAmortizationOfExcessInvestmentAndOther	-1597000	USD
CY2020Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	5083000	USD
CY2019Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	1643000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	6770000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	780000	USD
	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	4289000	USD
	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	2562000	USD
CY2019Q3	us-gaap	Impairment Of Investments ImpairmentOfInvestments	0	USD
	us-gaap	Impairment Of Investments ImpairmentOfInvestments	0	USD
	us-gaap	Impairment Of Investments ImpairmentOfInvestments	0	USD
CY2020Q3	us-gaap	Impairment Of Investments ImpairmentOfInvestments	0	USD
CY2020Q3	avb	Number Of Communities Held For Sale NumberOfCommunitiesHeldForSale	0	community
CY2020Q3	avb	Numberof Residential Condominium Units Sold NumberofResidentialCondominiumUnitsSold	7	residential_condominium
	avb	Numberof Residential Condominium Units Sold NumberofResidentialCondominiumUnitsSold	59	residential_condominium
CY2020Q3	us-gaap	Other Selling General And Administrative Expense OtherSellingGeneralAndAdministrativeExpense	1373000	USD
CY2019Q3	us-gaap	Other Selling General And Administrative Expense OtherSellingGeneralAndAdministrativeExpense	1108000	USD
	us-gaap	Other Selling General And Administrative Expense OtherSellingGeneralAndAdministrativeExpense	4012000	USD
	us-gaap	Other Selling General And Administrative Expense OtherSellingGeneralAndAdministrativeExpense	2526000	USD
CY2020Q3	us-gaap	Inventory Real Estate InventoryRealEstate	298429000	USD
CY2020Q3	avb	Number Of Office Leases NumberOfOfficeLeases	15	Lease
CY2020Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	135885000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	103063000	USD
CY2020Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	162683000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	120261000	USD
CY2020Q3	us-gaap	Operating Lease Expense OperatingLeaseExpense	3958000	USD
CY2019Q3	us-gaap	Operating Lease Expense OperatingLeaseExpense	3618000	USD
	us-gaap	Operating Lease Expense OperatingLeaseExpense	12115000	USD
	us-gaap	Operating Lease Expense OperatingLeaseExpense	10723000	USD
CY2020Q3	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	21738000	USD
CY2019Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	21898000	USD
CY2020Q3	us-gaap	Finance Lease Liability FinanceLeaseLiability	20176000	USD
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	20207000	USD
CY2020Q3	us-gaap	Profit Loss ProfitLoss	147717000	USD
CY2019Q3	us-gaap	Profit Loss ProfitLoss	279709000	USD
	us-gaap	Profit Loss ProfitLoss	486592000	USD
	us-gaap	Profit Loss ProfitLoss	618432000	USD
CY2020Q3	avb	Indirect Operating Expenses Net Of Corporate Income IndirectOperatingExpensesNetOfCorporateIncome	23837000	USD
CY2019Q3	avb	Indirect Operating Expenses Net Of Corporate Income IndirectOperatingExpensesNetOfCorporateIncome	20195000	USD
	avb	Indirect Operating Expenses Net Of Corporate Income IndirectOperatingExpensesNetOfCorporateIncome	70043000	USD
	avb	Indirect Operating Expenses Net Of Corporate Income IndirectOperatingExpensesNetOfCorporateIncome	62935000	USD
CY2020Q3	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	567000	USD
CY2019Q3	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	175000	USD
	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	4289000	USD
	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	2562000	USD
CY2020Q3	us-gaap	Interest Expense InterestExpense	53249000	USD
CY2019Q3	us-gaap	Interest Expense InterestExpense	51493000	USD
	us-gaap	Interest Expense InterestExpense	162562000	USD
	us-gaap	Interest Expense InterestExpense	149395000	USD
CY2020Q3	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	105000	USD
CY2019Q3	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-93000	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-9333000	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-602000	USD
CY2020Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	13985000	USD
CY2019Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	12769000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	46878000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	45440000	USD
CY2020Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	5083000	USD
CY2019Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	1643000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	6770000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	780000	USD
CY2020Q3	us-gaap	Depreciation Depreciation	175348000	USD
CY2019Q3	us-gaap	Depreciation Depreciation	165463000	USD
	us-gaap	Depreciation Depreciation	529508000	USD
	us-gaap	Depreciation Depreciation	490213000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-27000	USD
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	11184000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1069000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	11178000	USD
CY2020Q3	avb	Gain On Sale Of Real Estate Assets In Continuing Operations GainOnSaleOfRealEstateAssetsInContinuingOperations	31607000	USD
CY2019Q3	avb	Gain On Sale Of Real Estate Assets In Continuing Operations GainOnSaleOfRealEstateAssetsInContinuingOperations	130484000	USD
	avb	Gain On Sale Of Real Estate Assets In Continuing Operations GainOnSaleOfRealEstateAssetsInContinuingOperations	91338000	USD
	avb	Gain On Sale Of Real Estate Assets In Continuing Operations GainOnSaleOfRealEstateAssetsInContinuingOperations	165849000	USD
CY2020Q3	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	129000	USD
CY2019Q3	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	73000	USD
	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	328000	USD
	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	374000	USD
CY2020Q3	avb	Gain Losson Saleof Other Investments Net Of Marketing And Administrative Costs GainLossonSaleofOtherInvestmentsNetOfMarketingAndAdministrativeCosts	-646000	USD
CY2019Q3	avb	Gain Losson Saleof Other Investments Net Of Marketing And Administrative Costs GainLossonSaleofOtherInvestmentsNetOfMarketingAndAdministrativeCosts	-1108000	USD
	avb	Gain Losson Saleof Other Investments Net Of Marketing And Administrative Costs GainLossonSaleofOtherInvestmentsNetOfMarketingAndAdministrativeCosts	4162000	USD
	avb	Gain Losson Saleof Other Investments Net Of Marketing And Administrative Costs GainLossonSaleofOtherInvestmentsNetOfMarketingAndAdministrativeCosts	-2526000	USD
CY2020Q3	avb	Disposal Group Not Discontinued Operation Net Operating Income From Assets Held For Sale Not Classified As Discontinued Operations DisposalGroupNotDiscontinuedOperationNetOperatingIncomeFromAssetsHeldForSaleNotClassifiedAsDiscontinuedOperations	720000	USD
CY2019Q3	avb	Disposal Group Not Discontinued Operation Net Operating Income From Assets Held For Sale Not Classified As Discontinued Operations DisposalGroupNotDiscontinuedOperationNetOperatingIncomeFromAssetsHeldForSaleNotClassifiedAsDiscontinuedOperations	3404000	USD
	avb	Disposal Group Not Discontinued Operation Net Operating Income From Assets Held For Sale Not Classified As Discontinued Operations DisposalGroupNotDiscontinuedOperationNetOperatingIncomeFromAssetsHeldForSaleNotClassifiedAsDiscontinuedOperations	3572000	USD
	avb	Disposal Group Not Discontinued Operation Net Operating Income From Assets Held For Sale Not Classified As Discontinued Operations DisposalGroupNotDiscontinuedOperationNetOperatingIncomeFromAssetsHeldForSaleNotClassifiedAsDiscontinuedOperations	16161000	USD
CY2020Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	377678000	USD
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	406585000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	1201966000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	1200119000	USD
CY2020Q3	avb	Revenue From Assets Heldfor Sale Not Classified As Discontinued Operations RevenueFromAssetsHeldforSaleNotClassifiedAsDiscontinuedOperations	1449000	USD
CY2019Q3	avb	Revenue From Assets Heldfor Sale Not Classified As Discontinued Operations RevenueFromAssetsHeldforSaleNotClassifiedAsDiscontinuedOperations	6094000	USD
	avb	Revenue From Assets Heldfor Sale Not Classified As Discontinued Operations RevenueFromAssetsHeldforSaleNotClassifiedAsDiscontinuedOperations	6159000	USD
	avb	Revenue From Assets Heldfor Sale Not Classified As Discontinued Operations RevenueFromAssetsHeldforSaleNotClassifiedAsDiscontinuedOperations	28116000	USD
CY2020Q3	avb	Operating Expenses From Assets Held For Sale Not Classified As Discontinued Operations OperatingExpensesFromAssetsHeldForSaleNotClassifiedAsDiscontinuedOperations	729000	USD
CY2019Q3	avb	Operating Expenses From Assets Held For Sale Not Classified As Discontinued Operations OperatingExpensesFromAssetsHeldForSaleNotClassifiedAsDiscontinuedOperations	2690000	USD
	avb	Operating Expenses From Assets Held For Sale Not Classified As Discontinued Operations OperatingExpensesFromAssetsHeldForSaleNotClassifiedAsDiscontinuedOperations	2587000	USD
	avb	Operating Expenses From Assets Held For Sale Not Classified As Discontinued Operations OperatingExpensesFromAssetsHeldForSaleNotClassifiedAsDiscontinuedOperations	11955000	USD
CY2020Q3	avb	Disposal Group Not Discontinued Operation Net Operating Income From Assets Held For Sale Not Classified As Discontinued Operations DisposalGroupNotDiscontinuedOperationNetOperatingIncomeFromAssetsHeldForSaleNotClassifiedAsDiscontinuedOperations	720000	USD
CY2019Q3	avb	Disposal Group Not Discontinued Operation Net Operating Income From Assets Held For Sale Not Classified As Discontinued Operations DisposalGroupNotDiscontinuedOperationNetOperatingIncomeFromAssetsHeldForSaleNotClassifiedAsDiscontinuedOperations	3404000	USD
	avb	Disposal Group Not Discontinued Operation Net Operating Income From Assets Held For Sale Not Classified As Discontinued Operations DisposalGroupNotDiscontinuedOperationNetOperatingIncomeFromAssetsHeldForSaleNotClassifiedAsDiscontinuedOperations	3572000	USD
	avb	Disposal Group Not Discontinued Operation Net Operating Income From Assets Held For Sale Not Classified As Discontinued Operations DisposalGroupNotDiscontinuedOperationNetOperatingIncomeFromAssetsHeldForSaleNotClassifiedAsDiscontinuedOperations	16161000	USD
CY2020Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	377678000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	1201966000	USD
CY2020Q3	avb	Real Estate Gross At Carrying Value Excluding Gross Real Estate Assets Held For Sale RealEstateGrossAtCarryingValueExcludingGrossRealEstateAssetsHeldForSale	23941920000	USD
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	406585000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	1200119000	USD
CY2019Q3	avb	Real Estate Gross At Carrying Value Excluding Gross Real Estate Assets Held For Sale RealEstateGrossAtCarryingValueExcludingGrossRealEstateAssetsHeldForSale	22991068000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	17385000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	20291000	USD
	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	8291000	USD
	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	7622000	USD
CY2020Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1017000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1231000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2950000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3484000	USD
	avb	Derivative Notional Amounts Settled During Period DerivativeNotionalAmountsSettledDuringPeriod	600000000	USD
	us-gaap	Payments For Proceeds From Hedge Financing Activities PaymentsForProceedsFromHedgeFinancingActivities	25135000	USD
CY2020Q2	avb	Derivative Notional Amounts Settled During Period DerivativeNotionalAmountsSettledDuringPeriod	250000000	USD
CY2020Q1	avb	Derivative Notional Amounts Settled During Period DerivativeNotionalAmountsSettledDuringPeriod	350000000	USD
CY2020Q1	us-gaap	Payments For Proceeds From Hedge Financing Activities PaymentsForProceedsFromHedgeFinancingActivities	20314000	USD
CY2020Q2	avb	Derivative Notional Amounts Settled During Period DerivativeNotionalAmountsSettledDuringPeriod	250000000	USD
CY2020Q2	us-gaap	Payments For Proceeds From Hedge Financing Activities PaymentsForProceedsFromHedgeFinancingActivities	4821000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-17731000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-2367000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-1746000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-6617000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-4825000	USD

Files In Submission

Name	View Source	Status
0000915912-20-000027-index-headers.html	Edgar Link	pending
0000915912-20-000027-index.html	Edgar Link	pending
0000915912-20-000027.txt	Edgar Link	pending
0000915912-20-000027-xbrl.zip	Edgar Link	pending
avb-20200930.htm	Edgar Link	pending
avb-20200930.xsd	Edgar Link	pending
avb-20200930_cal.xml	Edgar Link	unprocessable
avb-20200930_def.xml	Edgar Link	unprocessable
avb-20200930_htm.xml	Edgar Link	completed
avb-20200930_lab.xml	Edgar Link	unprocessable
avb-20200930_pre.xml	Edgar Link	unprocessable
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
q3202010-qex101.htm	Edgar Link	pending
q3202010-qex311.htm	Edgar Link	pending
q3202010-qex312.htm	Edgar Link	pending
q3202010-qex32.htm	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$AVB
AVALONBAY COMMUNITIES INC Stock $avb

2020 Q4 Form 10-Q Financial Statement

#000091591220000027 Filed on November 04, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AVB AVALONBAY COMMUNITIES INC Stock $avb

2020 Q4 Form 10-Q Financial Statement

#000091591220000027 Filed on November 04, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AVB
AVALONBAY COMMUNITIES INC Stock $avb