$AVB
AVALONBAY COMMUNITIES INC Stock $avb

$avb Overview Financials Valuation SEC Filings Company Website

2014 Q4 Form 10-Q Financial Statement

#000091591214000011 Filed on November 04, 2014

Income Statement

Concept	2014 Q4	2014 Q3	2013 Q3
Revenue	$440.7M	$430.5M	$389.2M
YoY Change	11.79%	10.62%	51.1%
Cost Of Revenue	$152.6M	$150.2M	$139.0M
YoY Change	12.29%	8.06%	49.62%
Gross Profit	$288.1M	$280.3M	$250.1M
YoY Change	16.83%	12.08%	48.52%
Gross Profit Margin	65.38%	65.11%	64.26%
Selling, General & Admin	$10.70M	$11.30M	$9.900M
YoY Change	28.92%	14.14%	17.86%
% of Gross Profit	3.71%	4.03%	3.96%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$114.1M	$111.8M	$159.9M
YoY Change	11.43%	-30.05%	154.78%
% of Gross Profit	39.6%	39.9%	63.92%
Operating Expenses	$124.8M	$320.1M	$408.4M
YoY Change	-19.85%	-21.62%	105.57%
Operating Profit	$163.3M	$290.4M	$258.4M
YoY Change	79.65%	12.38%	45.72%
Interest Expense	-$42.80M	$46.38M	$43.95M
YoY Change	8.35%	5.53%	29.31%
% of Operating Profit	-26.21%	15.97%	17.0%
Other Income/Expense, Net		$406.0K	$2.176M
YoY Change		-81.34%
Pretax Income	$151.9M	$241.0M	-$15.90M
YoY Change	84.34%	-1615.72%	-119.3%
Income Tax	$9.400M	$0.00	$0.00
% Of Pretax Income	6.19%	0.0%
Net Earnings	$142.5M	$241.0M	-$10.89M
YoY Change	-43.49%	-2314.07%	-112.55%
Net Earnings / Revenue	32.34%	55.98%	-2.8%
Basic Earnings Per Share	$1.08	$1.83	-$0.08
Diluted Earnings Per Share	$1.08	$1.83	-$0.08
COMMON SHARES
Basic Shares Outstanding	132.0M shares	131.3M shares	129.2M shares
Diluted Shares Outstanding		131.9M shares	129.2M shares

Balance Sheet

Concept	2014 Q4	2014 Q3	2013 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$509.0M	$440.0M	$113.0M
YoY Change	81.14%	289.38%	-82.98%
Cash & Equivalents	$509.5M	$440.0M	$112.9M
Short-Term Investments
Other Short-Term Assets	$205.0M	$211.0M	$201.0M
YoY Change	4.06%	4.98%	34.9%
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets	$714.0M	$651.0M	$314.0M
YoY Change	49.37%	107.32%	-61.38%
LONG-TERM ASSETS
Property, Plant & Equipment	$14.94B	$14.72B	$14.29B
YoY Change	4.56%	3.07%	81.3%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$298.0M	$305.0M	$347.0M
YoY Change	-19.02%	-12.1%	149.64%
Other Assets	$163.0M	$172.0M	$171.0M
YoY Change	-4.68%	0.58%	52.68%
Total Long-Term Assets	$15.43B	$15.23B	$14.83B
YoY Change	3.88%	2.69%	81.85%
TOTAL ASSETS
Total Short-Term Assets	$714.0M	$651.0M	$314.0M
Total Long-Term Assets	$15.43B	$15.23B	$14.83B
Total Assets	$16.14B	$15.88B	$15.15B
YoY Change	5.3%	4.86%	68.87%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$102.0M	$98.00M	$84.00M
YoY Change	7.37%	16.67%	64.71%
Accrued Expenses	$286.0M	$279.0M	$278.0M
YoY Change	1.06%	0.36%	12.55%
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	$590.0M	$580.0M	$547.0M
YoY Change	5.17%	6.03%	26.33%
LONG-TERM LIABILITIES
Long-Term Debt	$6.490B	$6.242B	$6.098B
YoY Change	5.8%	2.36%	60.14%
Other Long-Term Liabilities	$2.000M	$2.000M	$8.000M
YoY Change	-87.5%	-75.0%
Total Long-Term Liabilities	$6.492B	$6.244B	$6.106B
YoY Change	5.56%	2.26%	60.35%
TOTAL LIABILITIES
Total Short-Term Liabilities	$590.0M	$580.0M	$547.0M
Total Long-Term Liabilities	$6.492B	$6.244B	$6.106B
Total Liabilities	$7.081B	$6.823B	$6.654B
YoY Change	5.52%	2.55%	56.9%
SHAREHOLDERS EQUITY
Retained Earnings	-$267.1M	-$256.2M	-$458.2M
YoY Change	-22.64%	-44.1%	197.92%
Common Stock	$1.320M	$1.320M	$1.294M
YoY Change	2.01%	2.01%	32.45%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$9.046B	$9.045B	$8.470B
YoY Change
Total Liabilities & Shareholders Equity	$16.14B	$15.88B	$15.15B
YoY Change	5.3%	4.86%	68.87%

Cashflow Statement

Concept	2014 Q4	2014 Q3	2013 Q3
OPERATING ACTIVITIES
Net Income	$142.5M	$241.0M	-$10.89M
YoY Change	-43.49%	-2314.07%	-112.55%
Depreciation, Depletion And Amortization	$114.1M	$111.8M	$159.9M
YoY Change	11.43%	-30.05%	154.78%
Cash From Operating Activities	$245.2M	$231.7M	$202.7M
YoY Change	-3.62%	14.31%	32.74%
INVESTING ACTIVITIES
Capital Expenditures	-$394.1M	-$327.0M	-$329.4M
YoY Change	-208.57%	-0.73%	8.75%
Acquisitions
YoY Change
Other Investing Activities	$73.80M	$142.0M	$18.80M
YoY Change	-121.14%	655.32%	45.74%
Cash From Investing Activities	-$320.3M	-$185.0M	-$310.6M
YoY Change	-2421.01%	-40.44%	7.14%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	144.5M	-32.50M	109.7M
YoY Change	-244.79%	-129.63%	-75.24%
NET CHANGE
Cash From Operating Activities	245.2M	231.7M	202.7M
Cash From Investing Activities	-320.3M	-185.0M	-310.6M
Cash From Financing Activities	144.5M	-32.50M	109.7M
Net Change In Cash	69.40M	14.20M	1.800M
YoY Change	-58.79%	688.89%	-99.41%
FREE CASH FLOW
Cash From Operating Activities	$245.2M	$231.7M	$202.7M
Capital Expenditures	-$394.1M	-$327.0M	-$329.4M
Free Cash Flow	$639.3M	$558.7M	$532.1M
YoY Change	-688.67%	5.0%	16.79%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2014Q3	avb	Additional Numberof Communities Expected To Be Developed AdditionalNumberofCommunitiesExpectedToBeDeveloped	39	community
	avb	Disposal Group Not Discontinued Operation Net Operating Income From Assets Heldfor Sale Not Classifiedas Discontinued Operations DisposalGroupNotDiscontinuedOperationNetOperatingIncomeFromAssetsHeldforSaleNotClassifiedasDiscontinuedOperations	8373000	USD
	avb	Disposal Group Not Discontinued Operation Net Operating Income From Assets Heldfor Sale Not Classifiedas Discontinued Operations DisposalGroupNotDiscontinuedOperationNetOperatingIncomeFromAssetsHeldforSaleNotClassifiedasDiscontinuedOperations	9587000	USD
CY2013Q3	avb	Disposal Group Not Discontinued Operation Net Operating Income From Assets Heldfor Sale Not Classifiedas Discontinued Operations DisposalGroupNotDiscontinuedOperationNetOperatingIncomeFromAssetsHeldforSaleNotClassifiedasDiscontinuedOperations	3535000	USD
CY2014Q3	avb	Disposal Group Not Discontinued Operation Net Operating Income From Assets Heldfor Sale Not Classifiedas Discontinued Operations DisposalGroupNotDiscontinuedOperationNetOperatingIncomeFromAssetsHeldforSaleNotClassifiedasDiscontinuedOperations	1216000	USD
CY2014Q3	avb	Equity Method Investment Summarized Financial Information Assets Other Assets EquityMethodInvestmentSummarizedFinancialInformationAssetsOtherAssets	92521000	USD
CY2013Q4	avb	Equity Method Investment Summarized Financial Information Assets Other Assets EquityMethodInvestmentSummarizedFinancialInformationAssetsOtherAssets	164183000	USD
CY2013Q3	avb	Equity Method Investment Summarized Financial Information Depreciation And Amortization EquityMethodInvestmentSummarizedFinancialInformationDepreciationAndAmortization	15668000	USD
CY2014Q3	avb	Equity Method Investment Summarized Financial Information Depreciation And Amortization EquityMethodInvestmentSummarizedFinancialInformationDepreciationAndAmortization	11934000	USD
	avb	Equity Method Investment Summarized Financial Information Depreciation And Amortization EquityMethodInvestmentSummarizedFinancialInformationDepreciationAndAmortization	40214000	USD
	avb	Equity Method Investment Summarized Financial Information Depreciation And Amortization EquityMethodInvestmentSummarizedFinancialInformationDepreciationAndAmortization	46602000	USD
CY2014Q3	avb	Equity Method Investment Summarized Financial Information Interest Expense EquityMethodInvestmentSummarizedFinancialInformationInterestExpense	22922000	USD
CY2013Q3	avb	Equity Method Investment Summarized Financial Information Interest Expense EquityMethodInvestmentSummarizedFinancialInformationInterestExpense	15376000	USD
	avb	Equity Method Investment Summarized Financial Information Interest Expense EquityMethodInvestmentSummarizedFinancialInformationInterestExpense	46474000	USD
	avb	Equity Method Investment Summarized Financial Information Interest Expense EquityMethodInvestmentSummarizedFinancialInformationInterestExpense	50335000	USD
CY2014Q3	avb	Equity Method Investment Summarized Financial Information Liabilities Other Liabilities EquityMethodInvestmentSummarizedFinancialInformationLiabilitiesOtherLiabilities	34846000	USD
CY2013Q4	avb	Equity Method Investment Summarized Financial Information Liabilities Other Liabilities EquityMethodInvestmentSummarizedFinancialInformationLiabilitiesOtherLiabilities	32257000	USD
CY2013Q4	avb	Equity Method Investment Summarized Financial Information Mortgage Notes Payable And Credit Facility EquityMethodInvestmentSummarizedFinancialInformationMortgageNotesPayableAndCreditFacility	1251067000	USD
CY2014Q3	avb	Equity Method Investment Summarized Financial Information Mortgage Notes Payable And Credit Facility EquityMethodInvestmentSummarizedFinancialInformationMortgageNotesPayableAndCreditFacility	982246000	USD
CY2014Q3	avb	Equity Method Investment Summarized Financial Information Operating And Other Expenses EquityMethodInvestmentSummarizedFinancialInformationOperatingAndOtherExpenses	19989000	USD
	avb	Equity Method Investment Summarized Financial Information Operating And Other Expenses EquityMethodInvestmentSummarizedFinancialInformationOperatingAndOtherExpenses	61680000	USD
	avb	Equity Method Investment Summarized Financial Information Operating And Other Expenses EquityMethodInvestmentSummarizedFinancialInformationOperatingAndOtherExpenses	63731000	USD
CY2013Q3	avb	Equity Method Investment Summarized Financial Information Operating And Other Expenses EquityMethodInvestmentSummarizedFinancialInformationOperatingAndOtherExpenses	22915000	USD
CY2013Q4	avb	Equity Method Investment Summarized Financial Information Real Estate Net EquityMethodInvestmentSummarizedFinancialInformationRealEstateNet	1905005000	USD
CY2014Q3	avb	Equity Method Investment Summarized Financial Information Real Estate Net EquityMethodInvestmentSummarizedFinancialInformationRealEstateNet	1624119000	USD
CY2014Q3	avb	Estimated Number Of Apartment Homes In Communities Expected To Be Developed EstimatedNumberOfApartmentHomesInCommunitiesExpectedToBeDeveloped	10707	home
CY2014Q3	avb	Expected Aggregate Number Of Apartment Homes To Be Constructed ExpectedAggregateNumberOfApartmentHomesToBeConstructed	9151	home
CY2014Q3	avb	Expensed Acquisition Development And Other Pursuit Costs ExpensedAcquisitionDevelopmentAndOtherPursuitCosts	406000	USD
CY2013Q3	avb	Expensed Acquisition Development And Other Pursuit Costs ExpensedAcquisitionDevelopmentAndOtherPursuitCosts	2176000	USD
	avb	Expensed Acquisition Development And Other Pursuit Costs ExpensedAcquisitionDevelopmentAndOtherPursuitCosts	46041000	USD
	avb	Expensed Acquisition Development And Other Pursuit Costs ExpensedAcquisitionDevelopmentAndOtherPursuitCosts	3139000	USD
	avb	Expensed Costs Related To Abandoned Pursuits ExpensedCostsRelatedToAbandonedPursuits	792000	USD
	avb	Expensed Costs Related To Abandoned Pursuits ExpensedCostsRelatedToAbandonedPursuits	3138000	USD
CY2014Q3	avb	Expensed Costs Related To Abandoned Pursuits ExpensedCostsRelatedToAbandonedPursuits	407000	USD
CY2013Q3	avb	Expensed Costs Related To Abandoned Pursuits ExpensedCostsRelatedToAbandonedPursuits	351000	USD
CY2013Q3	avb	Gainonsaleofrealestateassetsincontinuingoperations Gainonsaleofrealestateassetsincontinuingoperations	0	USD
	avb	Gainonsaleofrealestateassetsincontinuingoperations Gainonsaleofrealestateassetsincontinuingoperations	60945000	USD
CY2014Q3	avb	Gainonsaleofrealestateassetsincontinuingoperations Gainonsaleofrealestateassetsincontinuingoperations	0	USD
	avb	Gainonsaleofrealestateassetsincontinuingoperations Gainonsaleofrealestateassetsincontinuingoperations	240000	USD
	avb	Increase Decrease In Interest Expense IncreaseDecreaseInInterestExpense	-4429000	USD
	avb	Indirect Operating Expenses Net Of Corporate Income IndirectOperatingExpensesNetOfCorporateIncome	30673000	USD
CY2014Q3	avb	Indirect Operating Expenses Net Of Corporate Income IndirectOperatingExpensesNetOfCorporateIncome	13173000	USD
	avb	Indirect Operating Expenses Net Of Corporate Income IndirectOperatingExpensesNetOfCorporateIncome	36333000	USD
CY2013Q3	avb	Indirect Operating Expenses Net Of Corporate Income IndirectOperatingExpensesNetOfCorporateIncome	10780000	USD
	avb	Minority Interest Increase Decrease From Put Option Redemption Value Adjustment MinorityInterestIncreaseDecreaseFromPutOptionRedemptionValueAdjustment	441000	USD
	avb	Minority Interest Increase Decrease From Put Option Redemption Value Adjustment MinorityInterestIncreaseDecreaseFromPutOptionRedemptionValueAdjustment	-4088000	USD
	avb	Noncontrolling Interests Derecognition NoncontrollingInterestsDerecognition	17816000	USD
CY2014Q3	avb	Number Of Apartment Homes Under Reconstruction NumberOfApartmentHomesUnderReconstruction	2094	home
CY2014Q3	avb	Number Of Communities Held For Sale NumberOfCommunitiesHeldForSale	1	community
CY2014Q3	avb	Number Of Communities With Apartments Under Reconstruction NumberOfCommunitiesWithApartmentsUnderReconstruction	6	community
CY2014Q3	avb	Number Of Owned Communities Under Construction NumberOfOwnedCommunitiesUnderConstruction	27	community
	avb	Numberof Apartment Communities Sold NumberofApartmentCommunitiesSold	3	community
CY2014Q3	avb	Operating Expenses From Assets Heldfor Sale Not Classifiedas Discontinued Operations OperatingExpensesFromAssetsHeldforSaleNotClassifiedasDiscontinuedOperations	1022000	USD
CY2013Q3	avb	Operating Expenses From Assets Heldfor Sale Not Classifiedas Discontinued Operations OperatingExpensesFromAssetsHeldforSaleNotClassifiedasDiscontinuedOperations	2336000	USD
	avb	Operating Expenses From Assets Heldfor Sale Not Classifiedas Discontinued Operations OperatingExpensesFromAssetsHeldforSaleNotClassifiedasDiscontinuedOperations	5436000	USD
	avb	Operating Expenses From Assets Heldfor Sale Not Classifiedas Discontinued Operations OperatingExpensesFromAssetsHeldforSaleNotClassifiedasDiscontinuedOperations	6072000	USD
	avb	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives To Interest Expense OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesToInterestExpense	53484000	USD
	avb	Payment For Redemption Of Preferred Interest Obligation PaymentForRedemptionOfPreferredInterestObligation	33327000	USD
	avb	Payment For Redemption Of Preferred Interest Obligation PaymentForRedemptionOfPreferredInterestObligation	6300000	USD
CY2013Q3	avb	Revenue From Assets Heldfor Sale Not Classifiedas Discontinued Operations RevenueFromAssetsHeldforSaleNotClassifiedasDiscontinuedOperations	5871000	USD
CY2014Q3	avb	Revenue From Assets Heldfor Sale Not Classifiedas Discontinued Operations RevenueFromAssetsHeldforSaleNotClassifiedasDiscontinuedOperations	2238000	USD
	avb	Revenue From Assets Heldfor Sale Not Classifiedas Discontinued Operations RevenueFromAssetsHeldforSaleNotClassifiedasDiscontinuedOperations	15659000	USD
	avb	Revenue From Assets Heldfor Sale Not Classifiedas Discontinued Operations RevenueFromAssetsHeldforSaleNotClassifiedasDiscontinuedOperations	13809000	USD
	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	4701000	USD
CY2014Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-44074000	USD
CY2013Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	8988723000	USD
CY2014Q3	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	9344198000	USD
	avb	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Annual Forfeiture Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAnnualForfeitureRate	0.014
	avb	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodValue	5768000	USD
CY2014Q3	us-gaap	Accrued Liabilities Current And Noncurrent AccruedLiabilitiesCurrentAndNoncurrent	250440000	USD
CY2013Q4	us-gaap	Accrued Liabilities Current And Noncurrent AccruedLiabilitiesCurrentAndNoncurrent	240606000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-48631000	USD
	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	5706000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	21268000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	16768000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	9897000	USD
	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	-20898000	USD
	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	-26271000	USD
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	4763000	USD
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	5067000	USD
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1499	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	605899	shares
	us-gaap	Asset Management Costs AssetManagementCosts	3154000	USD
CY2013Q3	us-gaap	Asset Management Costs AssetManagementCosts	1043000	USD
	us-gaap	Asset Management Costs AssetManagementCosts	3195000	USD
CY2014Q3	us-gaap	Asset Management Costs AssetManagementCosts	1079000	USD
CY2014Q3	us-gaap	Assets Assets	15881178000	USD
CY2013Q4	us-gaap	Assets Assets	15328143000	USD
CY2014Q3	us-gaap	Assets Of Disposal Group Including Discontinued Operation Current AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent	80624000	USD
CY2013Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation Current AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent	215590000	USD
	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	1.87
	us-gaap	Business Acquisitions Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax	242647000	USD
	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	1152418000	USD
CY2014Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	440028000	USD
CY2013Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	281355000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	2733618000	USD
CY2013Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	112910000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	158673000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-2620708000	USD
CY2013Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.07
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	3.21
CY2014Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.16
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	3.48
CY2013Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2014Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2014Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	280000000	shares
CY2013Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	280000000	shares
CY2014Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	132006835	shares
CY2013Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	129416695	shares
CY2013Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	129416695	shares
CY2014Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	132006835	shares
CY2014Q3	us-gaap	Common Stock Value CommonStockValue	1320000	USD
CY2013Q4	us-gaap	Common Stock Value CommonStockValue	1294000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	545486000	USD
CY2013Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	44233000	USD
CY2014Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	242646000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	158842000	USD
CY2014Q3	us-gaap	Construction In Progress Gross ConstructionInProgressGross	1343157000	USD
CY2013Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	1582906000	USD
CY2013Q4	us-gaap	Construction Payable Current And Noncurrent ConstructionPayableCurrentAndNoncurrent	94632000	USD
CY2014Q3	us-gaap	Construction Payable Current And Noncurrent ConstructionPayableCurrentAndNoncurrent	98095000	USD
CY2014Q3	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	39329000	USD
CY2013Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	40677000	USD
	us-gaap	Depreciation Depreciation	328598000	USD
	us-gaap	Depreciation Depreciation	455410000	USD
CY2014Q3	us-gaap	Depreciation Depreciation	111836000	USD
CY2013Q3	us-gaap	Depreciation Depreciation	159873000	USD
	us-gaap	Depreciation And Amortization Discontinued Operations DepreciationAndAmortizationDiscontinuedOperations	0	USD
	us-gaap	Depreciation And Amortization Discontinued Operations DepreciationAndAmortizationDiscontinuedOperations	13154000	USD
CY2014Q3	us-gaap	Depreciation And Amortization Discontinued Operations DepreciationAndAmortizationDiscontinuedOperations	0	USD
CY2013Q3	us-gaap	Depreciation And Amortization Discontinued Operations DepreciationAndAmortizationDiscontinuedOperations	2535000	USD
	us-gaap	Derivative Instruments Loss Reclassified From Accumulated Oci Into Income Effective Portion DerivativeInstrumentsLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortion	4557000	USD
	us-gaap	Derivative Instruments Loss Reclassified From Accumulated Oci Into Income Effective Portion DerivativeInstrumentsLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortion	57913000	USD
CY2013Q3	us-gaap	Derivative Instruments Loss Reclassified From Accumulated Oci Into Income Effective Portion DerivativeInstrumentsLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortion	54948000	USD
CY2014Q3	us-gaap	Derivative Instruments Loss Reclassified From Accumulated Oci Into Income Effective Portion DerivativeInstrumentsLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortion	1546000	USD
	us-gaap	Direct Costs Of Leased And Rented Property Or Equipment DirectCostsOfLeasedAndRentedPropertyOrEquipment	304812000	USD
CY2014Q3	us-gaap	Direct Costs Of Leased And Rented Property Or Equipment DirectCostsOfLeasedAndRentedPropertyOrEquipment	105212000	USD
	us-gaap	Direct Costs Of Leased And Rented Property Or Equipment DirectCostsOfLeasedAndRentedPropertyOrEquipment	256549000	USD
CY2013Q3	us-gaap	Direct Costs Of Leased And Rented Property Or Equipment DirectCostsOfLeasedAndRentedPropertyOrEquipment	96857000	USD
	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax	310000	USD
	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax	12890000	USD
CY2014Q3	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax	0	USD
CY2013Q3	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax	5063000	USD
	us-gaap	Disposal Group Including Discontinued Operation Operating Expense DisposalGroupIncludingDiscontinuedOperationOperatingExpense	269000	USD
CY2013Q3	us-gaap	Disposal Group Including Discontinued Operation Operating Expense DisposalGroupIncludingDiscontinuedOperationOperatingExpense	3516000	USD
CY2014Q3	us-gaap	Disposal Group Including Discontinued Operation Operating Expense DisposalGroupIncludingDiscontinuedOperationOperatingExpense	0	USD
	us-gaap	Disposal Group Including Discontinued Operation Operating Expense DisposalGroupIncludingDiscontinuedOperationOperatingExpense	10996000	USD
CY2014Q3	us-gaap	Disposal Group Including Discontinued Operation Rental Income DisposalGroupIncludingDiscontinuedOperationRentalIncome	0	USD
	us-gaap	Disposal Group Including Discontinued Operation Rental Income DisposalGroupIncludingDiscontinuedOperationRentalIncome	37040000	USD
CY2013Q3	us-gaap	Disposal Group Including Discontinued Operation Rental Income DisposalGroupIncludingDiscontinuedOperationRentalIncome	11114000	USD
	us-gaap	Disposal Group Including Discontinued Operation Rental Income DisposalGroupIncludingDiscontinuedOperationRentalIncome	579000	USD
	us-gaap	Dividends Common Stock DividendsCommonStock	455531000	USD
CY2014Q3	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	153125000	USD
CY2013Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	138476000	USD
CY2013Q3	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	138459000	USD
CY2014Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.83
CY2013Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.08
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.80
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.15
CY2014Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.83
CY2013Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.08
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.14
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.80
	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	5911000	USD
	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	4635000	USD
	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	70662000	USD
CY2013Q3	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	5395000	USD
CY2014Q3	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	327539000	USD
	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	333221000	USD
CY2013Q4	us-gaap	Equity Method Investment Summarized Financial Information Assets EquityMethodInvestmentSummarizedFinancialInformationAssets	2069188000	USD
CY2014Q3	us-gaap	Equity Method Investment Summarized Financial Information Assets EquityMethodInvestmentSummarizedFinancialInformationAssets	1716640000	USD
CY2013Q4	us-gaap	Equity Method Investment Summarized Financial Information Equity Or Capital EquityMethodInvestmentSummarizedFinancialInformationEquityOrCapital	785864000	USD
CY2014Q3	us-gaap	Equity Method Investment Summarized Financial Information Equity Or Capital EquityMethodInvestmentSummarizedFinancialInformationEquityOrCapital	699548000	USD
CY2013Q4	us-gaap	Equity Method Investment Summarized Financial Information Liabilities And Equity EquityMethodInvestmentSummarizedFinancialInformationLiabilitiesAndEquity	2069188000	USD
CY2014Q3	us-gaap	Equity Method Investment Summarized Financial Information Liabilities And Equity EquityMethodInvestmentSummarizedFinancialInformationLiabilitiesAndEquity	1716640000	USD
CY2014Q3	us-gaap	Equity Method Investment Summarized Financial Information Net Income Loss EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss	322082000	USD
CY2013Q3	us-gaap	Equity Method Investment Summarized Financial Information Net Income Loss EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss	8049000	USD
	us-gaap	Equity Method Investment Summarized Financial Information Net Income Loss EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss	71793000	USD
	us-gaap	Equity Method Investment Summarized Financial Information Net Income Loss EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss	335026000	USD
CY2013Q3	us-gaap	Equity Method Investment Summarized Financial Information Revenue EquityMethodInvestmentSummarizedFinancialInformationRevenue	56613000	USD
	us-gaap	Equity Method Investment Summarized Financial Information Revenue EquityMethodInvestmentSummarizedFinancialInformationRevenue	157938000	USD
	us-gaap	Equity Method Investment Summarized Financial Information Revenue EquityMethodInvestmentSummarizedFinancialInformationRevenue	154034000	USD
CY2014Q3	us-gaap	Equity Method Investment Summarized Financial Information Revenue EquityMethodInvestmentSummarizedFinancialInformationRevenue	49388000	USD
CY2013Q4	us-gaap	Fixtures And Equipment Gross FixturesAndEquipmentGross	340461000	USD
CY2014Q3	us-gaap	Fixtures And Equipment Gross FixturesAndEquipmentGross	388566000	USD
CY2014Q3	us-gaap	Forward Contract Indexed To Issuers Equity Forward Rate ForwardContractIndexedToIssuersEquityForwardRate	151.74
CY2014Q3	us-gaap	Forward Contract Indexed To Issuers Equity Shares ForwardContractIndexedToIssuersEquityShares	4500000	shares
	us-gaap	Gain Loss On Disposition Of Real Estate Discontinued Operations GainLossOnDispositionOfRealEstateDiscontinuedOperations	118173000	USD
	us-gaap	Gain Loss On Disposition Of Real Estate Discontinued Operations GainLossOnDispositionOfRealEstateDiscontinuedOperations	37869000	USD
CY2013Q3	us-gaap	Gain Loss On Disposition Of Real Estate Discontinued Operations GainLossOnDispositionOfRealEstateDiscontinuedOperations	0	USD
CY2014Q3	us-gaap	Gain Loss On Disposition Of Real Estate Discontinued Operations GainLossOnDispositionOfRealEstateDiscontinuedOperations	0	USD
CY2013Q3	us-gaap	Gain Loss On Interest Rate Fair Value Hedge Ineffectiveness GainLossOnInterestRateFairValueHedgeIneffectiveness	-53484000	USD
	us-gaap	Gain Loss On Interest Rate Fair Value Hedge Ineffectiveness GainLossOnInterestRateFairValueHedgeIneffectiveness	-51000000	USD
CY2014Q3	us-gaap	Gain Loss On Interest Rate Fair Value Hedge Ineffectiveness GainLossOnInterestRateFairValueHedgeIneffectiveness	0	USD
	us-gaap	Gain Loss On Interest Rate Fair Value Hedge Ineffectiveness GainLossOnInterestRateFairValueHedgeIneffectiveness	0	USD
	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	240000	USD
CY2013Q3	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	0	USD
	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	0	USD
CY2014Q3	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	0	USD
	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	118413000	USD
	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	98814000	USD
	us-gaap	Gain On Sale Of Investments GainOnSaleOfInvestments	130386000	USD
	us-gaap	Gain On Sale Of Investments GainOnSaleOfInvestments	12667000	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-412000	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2014Q3	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2013Q3	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2014Q3	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	0	USD
	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	60945000	USD
	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	0	USD
CY2013Q3	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	0	USD
CY2013Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	9878000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	30745000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	31262000	USD
CY2014Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	11290000	USD
CY2014Q3	us-gaap	Impairment Of Investments ImpairmentOfInvestments	0	USD
CY2013Q3	us-gaap	Impairment Of Investments ImpairmentOfInvestments	0	USD
	us-gaap	Impairment Of Investments ImpairmentOfInvestments	0	USD
	us-gaap	Impairment Of Investments ImpairmentOfInvestments	0	USD
CY2014Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	241001000	USD
CY2013Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-15948000	USD
	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-30382000	USD
	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	516622000	USD
	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.24
CY2014Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.83
	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	3.86
CY2013Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.12
	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	3.85
CY2014Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.83
	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.24
CY2013Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.12
	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	131063000	USD
CY2014Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	0	USD
CY2013Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	5063000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	38179000	USD
CY2014Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.00
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	1.04
CY2013Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.04
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.29
CY2014Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.00
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	1.04
CY2013Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.04
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.29
CY2014Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	130592000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-16244000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	143527000	USD
CY2013Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	3260000	USD
	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-2911000	USD
	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-45215000	USD
	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	15333000	USD
	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	1086000	USD
	us-gaap	Increase Decrease In Construction Payables IncreaseDecreaseInConstructionPayables	31124000	USD
	us-gaap	Increase Decrease In Construction Payables IncreaseDecreaseInConstructionPayables	3463000	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	66709000	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	12808000	USD
	us-gaap	Increase Decrease In Restricted Cash For Operating Activities IncreaseDecreaseInRestrictedCashForOperatingActivities	-771000	USD
	us-gaap	Increase Decrease In Restricted Cash For Operating Activities IncreaseDecreaseInRestrictedCashForOperatingActivities	12883000	USD
CY2013Q3	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	17205000	USD
	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	47168000	USD
	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	54294000	USD
CY2014Q3	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	15989000	USD
	us-gaap	Interest Expense InterestExpense	132631000	USD
CY2014Q3	us-gaap	Interest Expense InterestExpense	46376000	USD
	us-gaap	Interest Expense InterestExpense	127772000	USD
CY2013Q3	us-gaap	Interest Expense InterestExpense	43945000	USD
	us-gaap	Interest Paid Net InterestPaidNet	154653000	USD
	us-gaap	Interest Paid Net InterestPaidNet	137081000	USD
CY2013Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	43175000	USD
CY2014Q3	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	28857000	USD
CY2013Q4	us-gaap	Investment Building And Building Improvements InvestmentBuildingAndBuildingImprovements	11059001000	USD
CY2014Q3	us-gaap	Investment Building And Building Improvements InvestmentBuildingAndBuildingImprovements	12098294000	USD
CY2013Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	367866000	USD
CY2014Q3	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	304795000	USD
CY2014Q3	us-gaap	Land Land	3436853000	USD
CY2013Q4	us-gaap	Land Land	3262616000	USD
CY2013Q4	us-gaap	Land Available For Development LandAvailableForDevelopment	300364000	USD
CY2014Q3	us-gaap	Land Available For Development LandAvailableForDevelopment	176484000	USD
CY2013Q4	us-gaap	Liabilities Liabilities	6711096000	USD
CY2014Q3	us-gaap	Liabilities Liabilities	6823300000	USD
CY2014Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	15881178000	USD
CY2013Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	15328143000	USD
CY2013Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation	15033000	USD
CY2014Q3	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation	1590000	USD
CY2014Q3	us-gaap	Line Of Credit LineOfCredit	0	USD
CY2013Q4	us-gaap	Line Of Credit LineOfCredit	0	USD
CY2014Q3	us-gaap	Long Term Debt LongTermDebt	6153118000	USD
CY2013Q4	us-gaap	Long Term Debt LongTermDebt	6029998000	USD
CY2014Q3	us-gaap	Management Fees Revenue ManagementFeesRevenue	2503000	USD
	us-gaap	Management Fees Revenue ManagementFeesRevenue	8253000	USD
CY2013Q3	us-gaap	Management Fees Revenue ManagementFeesRevenue	3014000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	100929000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	540955000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	100953000	USD
	us-gaap	Management Fees Revenue ManagementFeesRevenue	8198000	USD
CY2014Q3	us-gaap	Minority Interest MinorityInterest	0	USD
CY2013Q4	us-gaap	Minority Interest MinorityInterest	3595000	USD
	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	4088000	USD
	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	14221000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-1895620000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	13739000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-496495000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1195011000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	469923000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	641429000	USD
CY2014Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-99000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	13872000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-248000	USD
CY2013Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-170000	USD
	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	-24000	USD
CY2013Q3	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	-8000	USD
	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	-26000	USD
CY2014Q3	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	-9000	USD
CY2013Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-10715000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	540929000	USD
CY2014Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	241100000	USD
CY2014Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	241109000	USD
CY2013Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-10707000	USD
	us-gaap	Noncash Project Abandonment Costs NoncashProjectAbandonmentCosts	0	USD
	us-gaap	Noncash Project Abandonment Costs NoncashProjectAbandonmentCosts	1455000	USD
	us-gaap	Noncontrolling Interest Decrease From Deconsolidation NoncontrollingInterestDecreaseFromDeconsolidation	17816000	USD
CY2013Q4	us-gaap	Notes Payable NotesPayable	6029998000	USD
CY2014Q3	us-gaap	Notes Payable NotesPayable	6153118000	USD
CY2014Q3	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	247	community
CY2014Q3	us-gaap	Number Of States In Which Entity Operates NumberOfStatesInWhichEntityOperates	11	state
CY2014Q3	us-gaap	Number Of Units In Real Estate Property NumberOfUnitsInRealEstateProperty	73182	home
	us-gaap	Operating Expenses OperatingExpenses	1083130000	USD
	us-gaap	Operating Expenses OperatingExpenses	932257000	USD
CY2014Q3	us-gaap	Operating Expenses OperatingExpenses	320116000	USD
CY2013Q3	us-gaap	Operating Expenses OperatingExpenses	408397000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	721347000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	838830000	USD
CY2013Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	258436000	USD
CY2014Q3	us-gaap	Operating Leases Income Statement Minimum Lease Revenue OperatingLeasesIncomeStatementMinimumLeaseRevenue	428022000	USD
CY2014Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	293353000	USD
CY2013Q3	us-gaap	Operating Leases Income Statement Minimum Lease Revenue OperatingLeasesIncomeStatementMinimumLeaseRevenue	386175000	USD
	us-gaap	Operating Leases Income Statement Minimum Lease Revenue OperatingLeasesIncomeStatementMinimumLeaseRevenue	1060554000	USD
	us-gaap	Payments For Proceeds From Derivative Instrument Financing Activities PaymentsForProceedsFromDerivativeInstrumentFinancingActivities	0	USD
	us-gaap	Payments For Proceeds From Real Estate Partnership Investment Net PaymentsForProceedsFromRealEstatePartnershipInvestmentNet	238000	USD
	us-gaap	Payments For Proceeds From Real Estate Partnership Investment Net PaymentsForProceedsFromRealEstatePartnershipInvestmentNet	262000	USD
	us-gaap	Payments Of Capital Distribution PaymentsOfCapitalDistribution	24000	USD
	us-gaap	Payments Of Capital Distribution PaymentsOfCapitalDistribution	26000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	440632000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	387658000	USD
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	3414000	USD
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	6093000	USD
	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	0	USD
	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	1965000	USD
	us-gaap	Operating Leases Income Statement Minimum Lease Revenue OperatingLeasesIncomeStatementMinimumLeaseRevenue	1236154000	USD
CY2014Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-1546000	USD
CY2013Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-54948000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-4557000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-57913000	USD
CY2013Q4	us-gaap	Other Deferred Costs Net OtherDeferredCostsNet	31592000	USD
CY2014Q3	us-gaap	Other Deferred Costs Net OtherDeferredCostsNet	36945000	USD
	us-gaap	Other Expenses OtherExpenses	3139000	USD
	us-gaap	Other Expenses OtherExpenses	46041000	USD
CY2013Q3	us-gaap	Other Expenses OtherExpenses	2176000	USD
CY2014Q3	us-gaap	Other Expenses OtherExpenses	406000	USD
	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	10527000	USD
	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	33324000	USD
	us-gaap	Payments For Proceeds From Derivative Instrument Financing Activities PaymentsForProceedsFromDerivativeInstrumentFinancingActivities	51000000	USD
	us-gaap	Payments To Acquire Other Real Estate PaymentsToAcquireOtherRealEstate	0	USD
	us-gaap	Payments To Acquire Other Real Estate PaymentsToAcquireOtherRealEstate	749275000	USD
	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	7286000	USD
	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	5776000	USD
	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	908215000	USD
	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	861466000	USD
CY2014Q3	us-gaap	Preferred Stock Liquidation Preference PreferredStockLiquidationPreference	25
CY2013Q4	us-gaap	Preferred Stock Liquidation Preference PreferredStockLiquidationPreference	25
CY2013Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2014Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2014Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	50000000	shares
CY2013Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	50000000	shares
CY2013Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2014Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2014Q3	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2013Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2014Q3	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2013Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2013Q4	us-gaap	Prepaid Expense And Other Assets PrepaidExpenseAndOtherAssets	197208000	USD
CY2014Q3	us-gaap	Prepaid Expense And Other Assets PrepaidExpenseAndOtherAssets	210514000	USD
	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-bottom:12px;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Reclassifications</font></div><div style="line-height:120%;padding-bottom:12px;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Certain reclassifications have been made to amounts in prior years’ financial statements to conform to current year presentations as a result of discontinued operations and changes in held for sale classification as described in Note 7, “Real Estate Disposition Activities.”</font></div></div>
	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	16788000	USD
	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	192209000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	2874000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	340091000	USD
	us-gaap	Proceeds From Notes Payable ProceedsFromNotesPayable	71210000	USD
	us-gaap	Proceeds From Notes Payable ProceedsFromNotesPayable	53000000	USD
	us-gaap	Proceeds From Sale And Collection Of Mortgage Notes Receivable ProceedsFromSaleAndCollectionOfMortgageNotesReceivable	0	USD
	us-gaap	Proceeds From Sale And Collection Of Mortgage Notes Receivable ProceedsFromSaleAndCollectionOfMortgageNotesReceivable	21748000	USD
	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	186651000	USD
	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	432380000	USD
	us-gaap	Proceeds From Unsecured Notes Payable ProceedsFromUnsecuredNotesPayable	250000000	USD
	us-gaap	Proceeds From Unsecured Notes Payable ProceedsFromUnsecuredNotesPayable	400000000	USD
CY2013Q3	us-gaap	Profit Loss ProfitLoss	-10885000	USD
CY2014Q3	us-gaap	Profit Loss ProfitLoss	241001000	USD
	us-gaap	Profit Loss ProfitLoss	100681000	USD
	us-gaap	Profit Loss ProfitLoss	554801000	USD
CY2013Q3	us-gaap	Real Estate Heldforsale RealEstateHeldforsale	654729000	USD
CY2014Q3	us-gaap	Real Estate Heldforsale RealEstateHeldforsale	87393000	USD
CY2013Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	2476729000	USD
CY2014Q3	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	2799679000	USD
CY2013Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	14662078000	USD
CY2014Q3	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	15923713000	USD
CY2014Q3	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	13124034000	USD
CY2013Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	12185349000	USD
CY2013Q4	us-gaap	Real Estate Investments RealEstateInvestments	14284209000	USD
CY2014Q3	us-gaap	Real Estate Investments RealEstateInvestments	14724299000	USD
	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	131920000	USD
	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	115096000	USD
CY2014Q3	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	44996000	USD
CY2013Q3	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	42184000	USD
CY2014Q3	us-gaap	Redeemable Noncontrolling Interest Equity Common Carrying Amount RedeemableNoncontrollingInterestEquityCommonCarryingAmount	12596000	USD
CY2013Q4	us-gaap	Redeemable Noncontrolling Interest Equity Common Carrying Amount RedeemableNoncontrollingInterestEquityCommonCarryingAmount	17320000	USD
	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	28718000	USD
	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	1789399000	USD
	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	100000000	USD
	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	150000000	USD
CY2013Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	98564000	USD
CY2014Q3	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	95664000	USD
CY2013Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-345254000	USD
CY2014Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-256162000	USD
	us-gaap	Revenues Revenues	1244407000	USD
CY2013Q3	us-gaap	Revenues Revenues	389189000	USD
CY2014Q3	us-gaap	Revenues Revenues	430525000	USD
	us-gaap	Revenues Revenues	1068752000	USD
CY2014Q3	us-gaap	Secured Debt SecuredDebt	3546469000	USD
CY2013Q4	us-gaap	Secured Debt SecuredDebt	3539642000	USD
CY2013Q4	us-gaap	Security Deposit SecurityDeposit	26672000	USD
CY2014Q3	us-gaap	Security Deposit SecurityDeposit	29604000	USD
CY2014Q3	us-gaap	Security Deposit Liability SecurityDepositLiability	49425000	USD
CY2013Q4	us-gaap	Security Deposit Liability SecurityDepositLiability	44823000	USD
CY2014Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	9045282000	USD
CY2013Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	8599727000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	8720000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	10354000	USD
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	215230	shares
CY2014Q3	us-gaap	Share Price SharePrice	155.83
	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	53983	shares
	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	44750	shares
	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	1465	shares
	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	1868	shares
	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	4367	shares
	us-gaap	Stock Issued During Period Shares Share Based Compensation Forfeited StockIssuedDuringPeriodSharesShareBasedCompensationForfeited	200	shares
	us-gaap	Stock Issued During Period Shares Share Based Compensation Forfeited StockIssuedDuringPeriodSharesShareBasedCompensationForfeited	5214	shares
	us-gaap	Stock Issued During Period Shares Share Based Compensation Gross StockIssuedDuringPeriodSharesShareBasedCompensationGross	113822	shares
	us-gaap	Stock Issued During Period Shares Share Based Compensation Gross StockIssuedDuringPeriodSharesShareBasedCompensationGross	123977	shares
	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	454728	shares
	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	250000	USD
	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	200000	USD
	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	333839000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation Forfeited StockIssuedDuringPeriodValueShareBasedCompensationForfeited	780000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation Forfeited StockIssuedDuringPeriodValueShareBasedCompensationForfeited	1826000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation Gross StockIssuedDuringPeriodValueShareBasedCompensationGross	16019000	USD
CY2014Q3	us-gaap	Stockholders Equity StockholdersEquity	9045282000	USD
CY2013Q4	us-gaap	Stockholders Equity StockholdersEquity	8596132000	USD
CY2014Q3	us-gaap	Undistributed Earnings UndistributedEarnings	240734000	USD
CY2013Q3	us-gaap	Undistributed Earnings UndistributedEarnings	-10699000	USD
	us-gaap	Undistributed Earnings UndistributedEarnings	100763000	USD
	us-gaap	Undistributed Earnings UndistributedEarnings	540071000	USD
CY2014Q3	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	366000	USD
CY2013Q3	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	-16000	USD
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	166000	USD
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	858000	USD
CY2013Q4	us-gaap	Unsecured Debt UnsecuredDebt	2594709000	USD
CY2014Q3	us-gaap	Unsecured Debt UnsecuredDebt	2695299000	USD
	dei	Amendment Flag AmendmentFlag	false
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2013Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	129208839	shares
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2014
	dei	Document Period End Date DocumentPeriodEndDate	2014-09-30
	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-bottom:12px;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Use of Estimates</font></div><div style="line-height:120%;padding-bottom:12px;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">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.</font></div></div>
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	411821	shares
CY2014Q3	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	568417	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	554627	shares
CY2013Q3	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	126477114	shares
CY2013Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	129216339	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	130728000	shares
CY2014Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	131905995	shares
CY2013Q3	us-gaap	Weighted Average Number Of Limited Partnership And General Partnership Unit Outstanding Basic And Diluted WeightedAverageNumberOfLimitedPartnershipAndGeneralPartnershipUnitOutstandingBasicAndDiluted	7500	shares
CY2014Q3	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
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	126057793	shares
CY2014Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	131330078	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	130165873	shares
	dei	Document Type DocumentType	10-Q
	dei	Entity Central Index Key EntityCentralIndexKey	0000915912
CY2014Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	132008021	shares
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Registrant Name EntityRegistrantName	AVALONBAY COMMUNITIES INC

Files In Submission

Name	View Source	Status
0000915912-14-000011-index-headers.html	Edgar Link	pending
0000915912-14-000011-index.html	Edgar Link	pending
0000915912-14-000011.txt	Edgar Link	pending
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avb-20140930.xml	Edgar Link	completed
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avb-20140930_cal.xml	Edgar Link	unprocessable
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avb-20140930_pre.xml	Edgar Link	unprocessable
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Financial_Report.xlsx	Edgar Link	pending
q3201410-q.htm	Edgar Link	pending
q3201410-qex121.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

2014 Q4 Form 10-Q Financial Statement

#000091591214000011 Filed on November 04, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AVB AVALONBAY COMMUNITIES INC Stock $avb

2014 Q4 Form 10-Q Financial Statement

#000091591214000011 Filed on November 04, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AVB
AVALONBAY COMMUNITIES INC Stock $avb