$ARE
ALEXANDRIA REAL ESTATE EQUITIES, INC. Stock $are

$are Overview Financials Valuation SEC Filings Company Website

2019 Q4 Form 10-K Financial Statement

#000103544320000042 Filed on February 04, 2020

Income Statement

Concept	2019 Q4	2018 Q4	2018 Q3
Revenue	$408.1M	$340.5M	$341.8M
YoY Change	19.87%	13.95%	19.78%
Cost Of Revenue	$121.9M	$97.70M	$99.80M
YoY Change	24.77%	10.9%	19.52%
Gross Profit	$286.3M	$242.8M	$242.1M
YoY Change	17.92%	15.23%	19.91%
Gross Profit Margin	70.15%	71.31%	70.83%
Selling, General & Admin	$29.80M	$22.40M	$22.70M
YoY Change	33.04%	18.52%	28.98%
% of Gross Profit	10.41%	9.23%	9.38%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$140.5M	$125.0M	$119.6M
YoY Change	12.4%	16.06%	10.95%
% of Gross Profit	49.07%	51.48%	49.4%
Operating Expenses	$170.3M	$147.4M	$142.2M
YoY Change	15.54%	16.43%	13.4%
Operating Profit	$116.0M	$95.40M	$99.90M
YoY Change	21.59%	13.44%	30.59%
Interest Expense	$112.0M	-$122.7M	$42.24M
YoY Change	-191.28%	243.7%	36.13%
% of Operating Profit	96.55%	-128.62%	42.29%
Other Income/Expense, Net
YoY Change
Pretax Income	$216.1M	-$18.60M	$219.4M
YoY Change	-1261.83%	-140.79%	268.74%
Income Tax
% Of Pretax Income
Net Earnings	$202.4M	-$24.70M	$213.6M
YoY Change	-919.43%	-162.69%	297.29%
Net Earnings / Revenue	49.59%	-7.25%	62.5%
Basic Earnings Per Share	$1.75	-$0.30	$2.01
Diluted Earnings Per Share	$1.74	-$0.30	$1.99
COMMON SHARES
Basic Shares Outstanding	115.2M shares	107.5M shares	104.2M shares
Diluted Shares Outstanding			105.4M shares

Balance Sheet

Concept	2019 Q4	2018 Q4	2018 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$190.0M	$234.0M	$204.0M
YoY Change	-18.8%	-69.91%	-66.22%
Cash & Equivalents	$189.7M	$234.2M	$204.2M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables	$11.00M	$10.00M	$11.00M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$201.0M	$244.0M	$215.0M
YoY Change	-17.62%	-7.58%	66.67%
LONG-TERM ASSETS
Property, Plant & Equipment	$23.03M	$14.79M	$12.96M
YoY Change	55.75%	33.58%	13.24%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$1.487B	$1.130B	$1.155B
YoY Change	31.59%	78.23%	122.54%
Other Assets	$1.012B	$856.0M	$834.0M
YoY Change	18.22%	26.07%	30.72%
Total Long-Term Assets	$18.19B	$14.22B	$13.89B
YoY Change	27.91%	20.11%	21.67%
TOTAL ASSETS
Total Short-Term Assets	$201.0M	$244.0M	$215.0M
Total Long-Term Assets	$18.19B	$14.22B	$13.89B
Total Assets	$18.39B	$14.46B	$14.11B
YoY Change	27.14%	19.51%	22.18%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$475.0M	$491.0M	$446.0M
YoY Change	-3.26%	40.29%	31.95%
Accrued Expenses	$272.0M
YoY Change
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	$873.0M	$601.0M	$547.0M
YoY Change	45.26%	35.97%	29.93%
LONG-TERM LIABILITIES
Long-Term Debt	$6.777B	$5.478B	$5.684B
YoY Change	23.71%	14.96%	18.0%
Other Long-Term Liabilities	$574.0M	$490.0M	$461.0M
YoY Change	17.14%	18.36%	14.68%
Total Long-Term Liabilities	$7.351B	$5.968B	$6.145B
YoY Change	23.17%	15.23%	17.74%
TOTAL LIABILITIES
Total Short-Term Liabilities	$873.0M	$601.0M	$547.0M
Total Long-Term Liabilities	$7.351B	$5.968B	$6.145B
Total Liabilities	$8.224B	$6.570B	$6.692B
YoY Change	25.17%	16.89%	18.64%
SHAREHOLDERS EQUITY
Retained Earnings
YoY Change
Common Stock	$1.208M	$1.110M	$1.058M
YoY Change	8.83%	11.22%	12.2%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$8.866B	$7.342B	$6.873B
YoY Change
Total Liabilities & Shareholders Equity	$18.39B	$14.46B	$14.11B
YoY Change	27.14%	19.51%	22.18%

Cashflow Statement

Concept	2019 Q4	2018 Q4	2018 Q3
OPERATING ACTIVITIES
Net Income	$202.4M	-$24.70M	$213.6M
YoY Change	-919.43%	-162.69%	297.29%
Depreciation, Depletion And Amortization	$140.5M	$125.0M	$119.6M
YoY Change	12.4%	16.06%	10.95%
Cash From Operating Activities	$178.3M	$156.2M	$155.9M
YoY Change	14.15%	66.7%	16.78%
INVESTING ACTIVITIES
Capital Expenditures	-$1.280B	-$353.6M	-$490.8M
YoY Change	262.08%	11.37%	46.55%
Acquisitions
YoY Change
Other Investing Activities	-$10.20M	-$44.00M	-$4.400M
YoY Change	-76.82%	-58.45%	-257.14%
Cash From Investing Activities	-$1.290B	-$397.7M	-$495.2M
YoY Change	224.47%	-6.05%	49.11%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	901.8M	280.6M	251.3M
YoY Change	221.38%	-39.05%	26.22%
NET CHANGE
Cash From Operating Activities	178.3M	156.2M	155.9M
Cash From Investing Activities	-1.290B	-397.7M	-495.2M
Cash From Financing Activities	901.8M	280.6M	251.3M
Net Change In Cash	-210.3M	39.10M	-88.00M
YoY Change	-637.85%	-70.11%	-17700.0%
FREE CASH FLOW
Cash From Operating Activities	$178.3M	$156.2M	$155.9M
Capital Expenditures	-$1.280B	-$353.6M	-$490.8M
Free Cash Flow	$1.459B	$509.8M	$646.7M
YoY Change	186.11%	23.98%	38.07%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2019	dei	Amendment Flag AmendmentFlag	false
CY2019	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2019	dei	Document Annual Report DocumentAnnualReport	true
CY2019	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2019	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2019
CY2019	dei	Document Transition Report DocumentTransitionReport	false
CY2019	dei	Entity Central Index Key EntityCentralIndexKey	0001035443
CY2019	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2019	dei	Entity Shell Company EntityShellCompany	false
CY2019	dei	Entity Small Business EntitySmallBusiness	false
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CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	4.00
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CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	120800315	shares
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CY2019Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	120800315	shares
CY2019	dei	Document Period End Date DocumentPeriodEndDate	2019-12-31
CY2019	dei	Entity File Number EntityFileNumber	1-12993
CY2019	dei	Entity Registrant Name EntityRegistrantName	ALEXANDRIA REAL ESTATE EQUITIES, INC.
CY2019	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MD
CY2019	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	95-4502084
CY2019	dei	Local Phone Number LocalPhoneNumber	578-0777
CY2019	dei	Entity Address Address Line1 EntityAddressAddressLine1	26 North Euclid Avenue
CY2019	dei	Entity Address City Or Town EntityAddressCityOrTown	Pasadena
CY2019	dei	Entity Address State Or Province EntityAddressStateOrProvince	CA
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CY2019	dei	Security12b Title Security12bTitle	Common Stock, $0.01 par value per share
CY2019	dei	Trading Symbol TradingSymbol	ARE
CY2019	dei	Security Exchange Name SecurityExchangeName	NYSE
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CY2019	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-1763000	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	1622000	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	2837000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	9373000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	686000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	23481000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	25045000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-10688000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	238807000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	40882000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	44603000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	1777000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	4941000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-1915000	USD
CY2019	are	Reclassificationoflossesrelatedtoterminatedinterestratehedgeinstrumentstointerestexpenseincludedinnetlossincome Reclassificationoflossesrelatedtoterminatedinterestratehedgeinstrumentstointerestexpenseincludedinnetlossincome	-1702000	USD
CY2018	are	Reclassificationoflossesrelatedtoterminatedinterestratehedgeinstrumentstointerestexpenseincludedinnetlossincome Reclassificationoflossesrelatedtoterminatedinterestratehedgeinstrumentstointerestexpenseincludedinnetlossincome	0	USD
CY2017	are	Reclassificationoflossesrelatedtoterminatedinterestratehedgeinstrumentstointerestexpenseincludedinnetlossincome Reclassificationoflossesrelatedtoterminatedinterestratehedgeinstrumentstointerestexpenseincludedinnetlossincome	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-1838000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-3319000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	4752000	USD
CY2019	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	2524000	USD
CY2018	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	-7369000	USD
CY2017	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	7774000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax	0	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax	0	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax	-1599000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	2524000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-7369000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	404733000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	392105000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	363851000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	368624000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	213762000	USD
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5370971000	USD
CY2017	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	193146000	USD
CY2017	are	Other Comprehensive Income Loss Netof Tax Including Portion Attributableto Nonredeemable Noncontrolling Interest OtherComprehensiveIncomeLossNetofTaxIncludingPortionAttributabletoNonredeemableNoncontrollingInterest	44603000	USD
CY2017	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	541000	USD
CY2017	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	21505000	USD
CY2017	us-gaap	Noncontrolling Interest Increase From Sale Of Parent Equity Interest NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest	52625000	USD
CY2017	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	1275397000	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	42399000	USD
CY2017	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	329485000	USD
CY2017	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	7666000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	6471660000	USD
CY2018	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	401930000	USD
CY2018	are	Other Comprehensive Income Loss Netof Tax Including Portion Attributableto Nonredeemable Noncontrolling Interest OtherComprehensiveIncomeLossNetofTaxIncludingPortionAttributabletoNonredeemableNoncontrollingInterest	-10688000	USD
CY2018	are	Reclassification Of Cumulative Net Unrealized Gains On Non Real Estate Investments ReclassificationOfCumulativeNetUnrealizedGainsOnNonRealEstateInvestments	90750000	USD
CY2018	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	29810000	USD
CY2018	us-gaap	Noncontrolling Interest Increase From Sale Of Parent Equity Interest NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest	27418000	USD
CY2018	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	1304640000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	45978000	USD
CY2018	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	398914000	USD
CY2018	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	5060000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	7883928000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	7883928000	USD
CY2019	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	403172000	USD
CY2019	are	Other Comprehensive Income Loss Netof Tax Including Portion Attributableto Nonredeemable Noncontrolling Interest OtherComprehensiveIncomeLossNetofTaxIncludingPortionAttributabletoNonredeemableNoncontrollingInterest	686000	USD
CY2019	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	47395000	USD
CY2019	us-gaap	Noncontrolling Interest Increase From Sale Of Parent Equity Interest NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest	1134939000	USD
CY2019	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	1216445000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	67913000	USD
CY2019	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	25477000	USD
CY2019	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	463964000	USD
CY2019	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	3204000	USD
CY2019Q1	us-gaap	New Accounting Pronouncement Or Change In Accounting Principle Cumulative Effect Of Change On Equity Or Net Assets1 NewAccountingPronouncementOrChangeInAccountingPrincipleCumulativeEffectOfChangeOnEquityOrNetAssets1	-3525000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	10154178000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	404047000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	402793000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	194204000	USD
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	544612000	USD
CY2018	us-gaap	Depreciation And Amortization DepreciationAndAmortization	477661000	USD
CY2017	us-gaap	Depreciation And Amortization DepreciationAndAmortization	416783000	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-47570000	USD
CY2018	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-1122000	USD
CY2017	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-3451000	USD
CY2019	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	12334000	USD
CY2018	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	6311000	USD
CY2017	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	203000	USD
CY2019	us-gaap	Gain Loss On Disposition Of Real Estate Discontinued Operations GainLossOnDispositionOfRealEstateDiscontinuedOperations	474000	USD
CY2018	us-gaap	Gain Loss On Disposition Of Real Estate Discontinued Operations GainLossOnDispositionOfRealEstateDiscontinuedOperations	8704000	USD
CY2017	us-gaap	Gain Loss On Disposition Of Real Estate Discontinued Operations GainLossOnDispositionOfRealEstateDiscontinuedOperations	270000	USD
CY2019	us-gaap	Gain Loss On Sale Of Properties Applicable Income Taxes GainLossOnSaleOfPropertiesApplicableIncomeTaxes	0	USD
CY2018	us-gaap	Gain Loss On Sale Of Properties Applicable Income Taxes GainLossOnSaleOfPropertiesApplicableIncomeTaxes	0	USD
CY2017	us-gaap	Gain Loss On Sale Of Properties Applicable Income Taxes GainLossOnSaleOfPropertiesApplicableIncomeTaxes	111000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	10136000	USD
CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	43981000	USD
CY2017	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	15426000	USD
CY2019	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	2796000	USD
CY2018	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	430000	USD
CY2017	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	1618000	USD
CY2019	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	9105000	USD
CY2018	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	10271000	USD
CY2017	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	11149000	USD
CY2019	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	-3777000	USD
CY2018	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	-2406000	USD
CY2017	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	-2512000	USD
CY2019	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-29813000	USD
CY2018	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-21938000	USD
CY2017	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-19055000	USD
CY2019	us-gaap	Straight Line Rent StraightLineRent	104235000	USD
CY2018	us-gaap	Straight Line Rent StraightLineRent	93883000	USD
CY2017	us-gaap	Straight Line Rent StraightLineRent	107643000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	43640000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	35019000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	25610000	USD
CY2019	us-gaap	Gain Loss On Investments GainLossOnInvestments	194647000	USD
CY2018	us-gaap	Gain Loss On Investments GainLossOnInvestments	136763000	USD
CY2017	us-gaap	Gain Loss On Investments GainLossOnInvestments	1329000	USD
CY2019	us-gaap	Increase Decrease In Leasing Receivables IncreaseDecreaseInLeasingReceivables	897000	USD
CY2018	us-gaap	Increase Decrease In Leasing Receivables IncreaseDecreaseInLeasingReceivables	-435000	USD
CY2017	us-gaap	Increase Decrease In Leasing Receivables IncreaseDecreaseInLeasingReceivables	502000	USD
CY2019	us-gaap	Increase Decrease In Deferred Leasing Fees IncreaseDecreaseInDeferredLeasingFees	54455000	USD
CY2018	us-gaap	Increase Decrease In Deferred Leasing Fees IncreaseDecreaseInDeferredLeasingFees	57088000	USD
CY2017	us-gaap	Increase Decrease In Deferred Leasing Fees IncreaseDecreaseInDeferredLeasingFees	62639000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	20825000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	20849000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	18222000	USD
CY2019	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	39012000	USD
CY2018	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	21909000	USD
CY2017	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	25573000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	683857000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	570339000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	450882000	USD
CY2019	us-gaap	Proceeds From Sale Of Property Held For Sale ProceedsFromSaleOfPropertyHeldForSale	6619000	USD
CY2018	us-gaap	Proceeds From Sale Of Property Held For Sale ProceedsFromSaleOfPropertyHeldForSale	20190000	USD
CY2017	us-gaap	Proceeds From Sale Of Property Held For Sale ProceedsFromSaleOfPropertyHeldForSale	15432000	USD
CY2019	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	1224541000	USD
CY2018	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	927168000	USD
CY2017	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	893685000	USD
CY2019	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	2259778000	USD
CY2018	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	1037180000	USD
CY2017	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	675584000	USD
CY2019	us-gaap	Payments For Proceeds From Deposits On Real Estate Acquisitions PaymentsForProceedsFromDepositsOnRealEstateAcquisitions	18107000	USD
CY2018	us-gaap	Payments For Proceeds From Deposits On Real Estate Acquisitions PaymentsForProceedsFromDepositsOnRealEstateAcquisitions	2000000	USD
CY2017	us-gaap	Payments For Proceeds From Deposits On Real Estate Acquisitions PaymentsForProceedsFromDepositsOnRealEstateAcquisitions	2300000	USD
CY2019	are	Acquisition Of Interest In Unconsolidated Joint Venture AcquisitionOfInterestInUnconsolidatedJointVenture	0	USD
CY2018	are	Acquisition Of Interest In Unconsolidated Joint Venture AcquisitionOfInterestInUnconsolidatedJointVenture	35922000	USD
CY2017	are	Acquisition Of Interest In Unconsolidated Joint Venture AcquisitionOfInterestInUnconsolidatedJointVenture	60291000	USD
CY2019	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	102081000	USD
CY2018	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	116008000	USD
CY2017	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	17876000	USD
CY2019	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	14000	USD
CY2018	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	68592000	USD
CY2017	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	38576000	USD
CY2019	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	190778000	USD
CY2018	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	235943000	USD
CY2017	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	171881000	USD
CY2019	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	147332000	USD
CY2018	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	103679000	USD
CY2017	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	30483000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-3641320000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2161760000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1737126000	USD
CY2019	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	0	USD
CY2018	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	17784000	USD
CY2017	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	153405000	USD
CY2019	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	306199000	USD
CY2018	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	156888000	USD
CY2017	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	396240000	USD
CY2019	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	2721169000	USD
CY2018	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	899321000	USD
CY2017	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	1023262000	USD
CY2019	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	950000000	USD
CY2018	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	0	USD
CY2017	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	0	USD
CY2017	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	3858000000	USD
CY2019	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	4880000000	USD
CY2019	us-gaap	Repayments Of Commercial Paper RepaymentsOfCommercialPaper	2233000000	USD
CY2019	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	5056000000	USD
CY2018	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	4741000000	USD
CY2018	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	4583000000	USD
CY2017	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	3836000000	USD
CY2019	us-gaap	Proceeds From Issuance Of Commercial Paper ProceedsFromIssuanceOfCommercialPaper	2233000000	USD
CY2018	us-gaap	Proceeds From Issuance Of Commercial Paper ProceedsFromIssuanceOfCommercialPaper	0	USD
CY2017	us-gaap	Proceeds From Issuance Of Commercial Paper ProceedsFromIssuanceOfCommercialPaper	0	USD
CY2018	us-gaap	Repayments Of Commercial Paper RepaymentsOfCommercialPaper	0	USD
CY2017	us-gaap	Repayments Of Commercial Paper RepaymentsOfCommercialPaper	0	USD
CY2019	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	350000000	USD
CY2018	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	200000000	USD
CY2017	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	200000000	USD
CY2019	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	41351000	USD
CY2018	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	0	USD
CY2018	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	0	USD
CY2019	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	27182000	USD
CY2018	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	19292000	USD
CY2017	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	10019000	USD
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	25477000	USD
CY2018	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	0	USD
CY2017	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	0	USD
CY2019	us-gaap	Payments For Repurchase Of Convertible Preferred Stock PaymentsForRepurchaseOfConvertiblePreferredStock	9240000	USD
CY2018	us-gaap	Payments For Repurchase Of Convertible Preferred Stock PaymentsForRepurchaseOfConvertiblePreferredStock	13976000	USD
CY2017	us-gaap	Payments For Repurchase Of Convertible Preferred Stock PaymentsForRepurchaseOfConvertiblePreferredStock	17934000	USD
CY2019	us-gaap	Payments For Repurchase Of Redeemable Preferred Stock PaymentsForRepurchaseOfRedeemablePreferredStock	0	USD
CY2018	us-gaap	Payments For Repurchase Of Redeemable Preferred Stock PaymentsForRepurchaseOfRedeemablePreferredStock	0	USD
CY2017	us-gaap	Payments For Repurchase Of Redeemable Preferred Stock PaymentsForRepurchaseOfRedeemablePreferredStock	130350000	USD
CY2019	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1216445000	USD
CY2018	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1293301000	USD
CY2017	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1275397000	USD
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	447029000	USD
CY2018	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	380632000	USD
CY2017	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	312131000	USD
CY2019	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	4141000	USD
CY2018	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	5207000	USD
CY2017	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	9619000	USD
CY2019	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	1022712000	USD
CY2018	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	28275000	USD
CY2017	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	44931000	USD
CY2019	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	48225000	USD
CY2018	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	32253000	USD
CY2017	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	22361000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	2927482000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1588433000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1420341000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	540000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-2068000	USD
CY2017	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	1723000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-29441000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-5056000	USD
CY2017	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	135820000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	272130000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	277186000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	141366000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	242689000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	272130000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	277186000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	146165000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	127093000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	112113000	USD
CY2019	us-gaap	Increase Decrease In Construction Payables IncreaseDecreaseInConstructionPayables	-24000	USD
CY2018	us-gaap	Increase Decrease In Construction Payables IncreaseDecreaseInConstructionPayables	81177000	USD
CY2017	us-gaap	Increase Decrease In Construction Payables IncreaseDecreaseInConstructionPayables	-11034000	USD
CY2019	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	220773000	USD
CY2018	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	244147000	USD
CY2017	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	179154000	USD
CY2019	us-gaap	Notes Assumed1 NotesAssumed1	28200000	USD
CY2018	us-gaap	Notes Assumed1 NotesAssumed1	0	USD
CY2017	us-gaap	Notes Assumed1 NotesAssumed1	0	USD
CY2019	are	Noncashrightofuseasset Noncashrightofuseasset	269189000	USD
CY2018	are	Noncashrightofuseasset Noncashrightofuseasset	0	USD
CY2017	are	Noncashrightofuseasset Noncashrightofuseasset	0	USD
CY2019	are	Noncashleaseliability Noncashleaseliability	275175000	USD
CY2018	are	Noncashleaseliability Noncashleaseliability	0	USD
CY2017	are	Noncashleaseliability Noncashleaseliability	0	USD
CY2019	are	Payableforpurchaseofrealestate Payableforpurchaseofrealestate	0	USD
CY2018	are	Payableforpurchaseofrealestate Payableforpurchaseofrealestate	65000000	USD
CY2017	are	Payableforpurchaseofrealestate Payableforpurchaseofrealestate	0	USD
CY2019	are	Contribution Of Real Estate To An Unconsolidated Real Estate Joint Venture ContributionOfRealEstateToAnUnconsolidatedRealEstateJointVenture	0	USD
CY2017	are	Contribution Of Real Estate To An Unconsolidated Real Estate Joint Venture ContributionOfRealEstateToAnUnconsolidatedRealEstateJointVenture	6998000	USD
CY2018	are	Contribution Of Real Estate To An Unconsolidated Real Estate Joint Venture ContributionOfRealEstateToAnUnconsolidatedRealEstateJointVenture	0	USD
CY2017	are	Contributionofrealestatefromnoncontrollinginterests Contributionofrealestatefromnoncontrollinginterests	8597000	USD
CY2019	us-gaap	Conversion Of Stock Amount Issued1 ConversionOfStockAmountIssued1	57461000	USD
CY2019Q1	us-gaap	Sales Type Lease Initial Direct Cost Expense Commencement SalesTypeLeaseInitialDirectCostExpenseCommencement	3500000	USD
CY2019	are	Contributionofrealestatefromnoncontrollinginterests Contributionofrealestatefromnoncontrollinginterests	115167000	USD
CY2018	are	Contributionofrealestatefromnoncontrollinginterests Contributionofrealestatefromnoncontrollinginterests	0	USD
CY2018	us-gaap	Conversion Of Stock Amount Issued1 ConversionOfStockAmountIssued1	0	USD
CY2017	us-gaap	Conversion Of Stock Amount Issued1 ConversionOfStockAmountIssued1	0	USD
CY2019	us-gaap	Nature Of Operations NatureOfOperations	<div style="line-height:120%;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;font-weight:bold;">Organization and basis of presentation</span></div><div style="line-height:120%;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;"><br/></span></div><div style="line-height:120%;text-indent:48px;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">Alexandria Real Estate Equities, Inc. (NYSE:ARE), an S&P 500</span><span style="font-family:Arial;font-size:9pt;"><sup style="vertical-align:top;line-height:120%;font-size:6pt">®</sup></span><span style="font-family:Arial;font-size:9pt;"> urban office REIT, is the first and longest-tenured owner, operator, and developer uniquely focused on collaborative life science, technology, and agtech campuses in AAA innovation cluster locations. As used in this annual report on Form 10-K, references to the “Company,” “Alexandria,” “ARE,” “we,” “us,” and “our” refer to Alexandria Real Estate Equities, Inc. and its consolidated subsidiaries. The accompanying consolidated financial statements include the accounts of Alexandria Real Estate Equities, Inc. and its consolidated subsidiaries. All significant intercompany balances and transactions have been eliminated. Certain prior-period amounts have been reclassified to conform to the current-period presentation. Refer to the “Lease Accounting” section in Note 2 – “Summary of Significant Accounting Policies” to our consolidated financial statements.</span></div><div style="line-height:120%;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;"><br/></span></div><div style="line-height:120%;text-indent:48px;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">Any references to our market capitalization, number or quality of buildings or tenants, quality of location, square footage, number of leases, or occupancy percentage, and any amounts derived from these values in these notes to consolidated financial statements are unaudited.</span></div>
CY2019	us-gaap	Use Of Estimates UseOfEstimates	<div style="line-height:120%;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;text-decoration:underline;">Use of estimates</span></div><div style="line-height:120%;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;"><br/></span></div><div style="line-height:120%;text-indent:48px;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">The preparation of consolidated financial statements in conformity with GAAP requires us to make estimates and assumptions that affect the reported amounts of assets, liabilities, and equity; the disclosure of contingent assets and liabilities as of the date of the consolidated financial statements; and the amounts of revenues and expenses during the reporting period. Actual results could materially differ from those estimates.</span></div>
CY2019	are	Maximum Expected Period Of Sale Of Property MaximumExpectedPeriodOfSaleOfProperty	P1Y
CY2019Q4	are	Cost Method Investment Ownership Percentage CostMethodInvestmentOwnershipPercentage	0.10
CY2019	us-gaap	Revenue Recognition Leases RevenueRecognitionLeases	<div style="line-height:120%;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;text-decoration:underline;">Revenues</span></div><div style="line-height:120%;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;"><br/></span></div><div style="line-height:120%;text-align:left;text-indent:48px;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">The table below provides detail of our consolidated total revenues for the </span><span style="font-family:Arial;font-size:9pt;">year ended December 31, 2019</span><span style="font-family:Arial;font-size:9pt;"> (in thousands):</span></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="5"/></tr><tr><td style="width:79%;"/><td style="width:1%;"/><td style="width:1%;"/><td style="width:18%;"/><td style="width:1%;"/></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">Year Ended December 31, 2019</span></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">Income from rentals:</span></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="3" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">Revenues subject to the new lease accounting standard:</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">Operating leases</span></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">$</span></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;"><span>1,465,692</span></span></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">Direct financing lease</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;"><span>2,421</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">Revenues subject to the new lease accounting standard</span></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;"><span>1,468,113</span></span></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">Revenues subject to the revenue recognition accounting standard</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;"><span>48,751</span></span></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">Income from rentals</span></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;"><div style="text-align:right;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;"><span>1,516,864</span></span></div></td><td style="vertical-align:bottom;background-color:#cceeff;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">Other income</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;"><span>14,432</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">Total revenues</span></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;border-top:1px solid #000000;"><div style="text-align:left;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">$</span></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;"><div style="text-align:right;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;"><span>1,531,296</span></span></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr></table></div><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;"><br/></span></div><div style="line-height:120%;text-indent:48px;font-size:10pt;"><span style="font-family:Arial;font-size:9pt;">During the </span><span style="font-family:Arial;font-size:9pt;">year ended December 31, 2019</span><span style="font-family:Arial;font-size:9pt;">, revenues that were subject to the new lease accounting standard aggregated </span><span style="font-family:Arial;font-size:9pt;">$1.5 billion</span><span style="font-family:inherit;font-size:10pt;"> </span><span style="font-family:Arial;font-size:9pt;">and represented </span><span style="font-family:Arial;font-size:9pt;"><span>95.9%</span></span><span style="font-family:Arial;font-size:9pt;"> of our total revenues. </span></div><div style="line-height:120%;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;"><br/></span></div><div style="line-height:120%;text-indent:48px;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">During the </span><span style="font-family:Arial;font-size:9pt;">year ended December 31, 2019</span><span style="font-family:Arial;font-size:9pt;">, our total revenues also included </span><span style="font-family:Arial;font-size:9pt;"><span>$63.2 million</span></span><span style="font-family:Arial;font-size:9pt;">, or </span><span style="font-family:Arial;font-size:9pt;"><span>4.1%</span></span><span style="font-family:Arial;font-size:9pt;">, subject to other accounting guidance. For a detailed discussion related to our revenue streams, refer to the “Lease Accounting” and “Recognition of Revenue Arising From Contracts With Customers” sections within this Note 2 to our consolidated financial statements.</span></div>
CY2019	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	1465692000	USD
CY2019	us-gaap	Direct Financing Lease Lease Income DirectFinancingLeaseLeaseIncome	2421000	USD
CY2019	us-gaap	Lease Income LeaseIncome	1468113000	USD
CY2019	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	1531296000	USD
CY2019	are	Percentageoftotalrevenues Percentageoftotalrevenues	0.959
CY2019Q1	are	Ground And Operating Lease Obligation Due GroundAndOperatingLeaseObligationDue	590300000	USD
CY2019Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	218700000	USD
CY2019Q1	are	Reclassification Of Deferred Rent Liabilities ReclassificationOfDeferredRentLiabilities	27000000.0	USD
CY2019	are	Minimum Percentage Of Taxable Income To Be Distributed MinimumPercentageOfTaxableIncomeToBeDistributed	0.90
CY2019	are	Percent Of Taxable Income Generally Distributed As Dividend PercentOfTaxableIncomeGenerallyDistributedAsDividend	1
CY2019	us-gaap	Derivatives Methods Of Accounting Hedging Derivatives DerivativesMethodsOfAccountingHedgingDerivatives	<div style="line-height:120%;text-align:left;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;text-decoration:underline;">Hedge accounting</span></div><div style="line-height:120%;text-align:left;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;"><br/></span></div><div style="line-height:120%;text-align:left;text-indent:48px;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">From time to time, we utilize interest rate hedge agreements to manage a portion of our exposure to variable interest rates. Historically, our interest rate hedge agreements have primarily related to our borrowings with variable interest rates based on LIBOR. However, in connection with the LIBOR cessation projected by the end of 2021 and the potential replacement of this rate in the U.S. with the Secured Overnight Financing Rate (“SOFR”), we have paid down the majority of our outstanding LIBOR-based borrowings and terminated our related interest rate hedge agreements to minimize our exposure to LIBOR. As a result, as of </span><span style="font-family:Arial;font-size:9pt;">December 31, 2019</span><span style="font-family:Arial;font-size:9pt;">, we had no outstanding interest rate hedge agreements and no LIBOR-based borrowings other than borrowings of </span><span style="font-family:Arial;font-size:9pt;"><span>$384.0 million</span></span><span style="font-family:Arial;font-size:9pt;"> outstanding under our unsecured senior line of credit. </span></div><div style="line-height:120%;text-align:left;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;"><br/></span></div><div style="line-height:120%;text-align:left;text-indent:48px;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">In October 2018, the FASB issued an accounting standard that expanded the list of U.S. benchmark interest rates permitted in the application of hedge accounting to include the overnight index swap rate based on SOFR. The accounting standard became effective for us and was adopted on January 1, 2019. Upon adoption on January 1, 2019, and during the </span><span style="font-family:Arial;font-size:9pt;">year ended December 31, 2019</span><span style="font-family:Arial;font-size:9pt;">, we had no hedges based on SOFR; therefore, the adoption of this accounting standard had no effect on our consolidated financial statements. Should we issue variable interest rate debt in the future, including SOFR-based debt, and enter into related interest rate hedge agreements to manage our exposure to variable interest rates, we will continue applying the interest hedge accounting policy, described below, that had been applied to our interest rate hedge agreements based on LIBOR. </span></div><div style="line-height:120%;text-align:left;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;"><br/></span></div><div style="line-height:120%;text-align:left;text-indent:48px;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">When we issue variable interest rate debt, we may enter into interest rate hedge agreements to manage our exposure to variable interest rates. As a result, our interest rate hedge agreements are generally designated as cash flow hedges. At the inception of a hedge agreement, we are required to perform an initial quantitative assessment to determine whether a hedge is highly effective in offsetting changes in cash flows associated with the hedged item. For cash flow hedges that are highly effective at inception and continue to be highly effective, we record all changes (effective and ineffective components) in the fair value of our hedges, including accrued interest and adjustments for non-performance risk, in accumulated other comprehensive income within total equity and reclassify them into earnings when the hedged item affects earnings. Subsequently, we may perform only a qualitative assessment, unless facts and circumstances change.</span></div><div style="line-height:120%;text-align:left;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;"><br/></span></div><div style="line-height:120%;text-align:left;text-indent:48px;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">The fair value of each interest rate hedge agreement is determined using widely accepted valuation techniques, including discounted cash flow analyses on the expected cash flows of each derivative. These analyses reflect the contractual terms of the derivatives, including the period to maturity, and use observable market-based inputs, including interest rate curves and implied volatilities. The fair values of our interest rate hedge agreements are determined using the market-standard methodology of netting the discounted future fixed-cash payments and the discounted expected variable-cash receipts. The variable-cash receipts are based on an expectation of future interest rates (forward curves) derived from observable market interest rate curves. The fair value calculation also includes an amount for risk of non-performance of our counterparties using “significant unobservable inputs,” such as estimates of current credit spreads, to evaluate the likelihood of default.</span></div><div style="line-height:120%;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;"><br/></span></div>We classify fair values of our interest rate hedge agreements in asset positions within other assets, and the fair values of our interest rate hedge agreements in liability positions within accounts payable, accrued expenses, and other liabilities, without any offsetting pursuant to master netting agreements. In agreements with certain of our derivative counterparties, we may have provisions wherein we could be declared in default on our derivative obligations if (i) repayment of the underlying indebtedness is accelerated by the lender due to our default on the indebtedness or (ii) we default on any of its indebtedness, including default where repayment of the indebtedness has not been accelerated by the lender.
CY2019Q4	us-gaap	Capital Leases Net Investment In Direct Financing Leases CapitalLeasesNetInvestmentInDirectFinancingLeases	39900000	USD
CY2019	us-gaap	Provision For Lease Losses ProvisionForLeaseLosses	2200000	USD
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CY2019Q4	are	Number Of Real Estate Properties Acquired NumberOfRealEstatePropertiesAcquired	47
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CY2019	are	Rent Commence Date RentCommenceDate	2017-10-01
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CY2018Q4	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived	262111000	USD
CY2019Q4	are	Direct Financing Lease Unearned Income DirectFinancingLeaseUnearnedIncome	220541000	USD
CY2018Q4	are	Direct Financing Lease Unearned Income DirectFinancingLeaseUnearnedIncome	222962000	USD
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CY2019Q4	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received Two Years SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedTwoYears	1756000	USD
CY2019Q4	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received Three Years SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThreeYears	1809000	USD
CY2019Q4	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received Four Years SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFourYears	1863000	USD
CY2019Q4	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received Five Years SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFiveYears	1919000	USD
CY2019Q4	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received Thereafter SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThereafter	251405000	USD
CY2019Q4	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived	260457000	USD
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CY2018	are	Gross Operating Lease Costs GrossOperatingLeaseCosts	16102000	USD
CY2017	are	Gross Operating Lease Costs GrossOperatingLeaseCosts	14307000	USD
CY2019	are	Capitalized Lease Costs CapitalizedLeaseCosts	1452000	USD
CY2018	are	Capitalized Lease Costs CapitalizedLeaseCosts	340000	USD
CY2017	are	Capitalized Lease Costs CapitalizedLeaseCosts	340000	USD
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CY2018	us-gaap	Lease Cost LeaseCost	15762000	USD
CY2017	us-gaap	Lease Cost LeaseCost	13967000	USD
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CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	37949000	USD
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CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	7227000	USD
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CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	1217559000	USD
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CY2019Q4	us-gaap	Long Term Debt LongTermDebt	6777479000	USD
CY2019Q4	us-gaap	Senior Notes SeniorNotes	6100000000	USD
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CY2019	us-gaap	Interest Costs Incurred InterestCostsIncurred	262238000	USD
CY2018	us-gaap	Interest Costs Incurred InterestCostsIncurred	223715000	USD
CY2017	us-gaap	Interest Costs Incurred InterestCostsIncurred	186867000	USD
CY2019	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	88563000	USD
CY2018	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	66220000	USD
CY2017	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	58222000	USD
CY2019	us-gaap	Interest Expense InterestExpense	173675000	USD
CY2018	us-gaap	Interest Expense InterestExpense	157495000	USD
CY2017	us-gaap	Interest Expense InterestExpense	128645000	USD
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CY2019Q3	us-gaap	Gain Loss On Cash Flow Hedge Ineffectiveness Net GainLossOnCashFlowHedgeIneffectivenessNet	-1700000	USD
CY2019Q4	us-gaap	Accounts Payable And Other Accrued Liabilities AccountsPayableAndOtherAccruedLiabilities	198994000	USD
CY2018Q4	us-gaap	Accounts Payable And Other Accrued Liabilities AccountsPayableAndOtherAccruedLiabilities	215539000	USD
CY2019Q4	are	Accrued Construction AccruedConstruction	275818000	USD
CY2018Q4	are	Accrued Construction AccruedConstruction	275882000	USD
CY2019Q4	us-gaap	Below Market Lease Net BelowMarketLeaseNet	194773000	USD
CY2018Q4	us-gaap	Below Market Lease Net BelowMarketLeaseNet	134808000	USD
CY2019Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	14037000	USD
CY2018Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	10343000	USD
CY2019Q4	are	Deferred Rent Liability DeferredRentLiability	2897000	USD
CY2018Q4	are	Deferred Rent Liability DeferredRentLiability	29547000	USD
CY2019Q4	us-gaap	Interest Rate Derivative Liabilities At Fair Value InterestRateDerivativeLiabilitiesAtFairValue	0	USD
CY2018Q4	us-gaap	Interest Rate Derivative Liabilities At Fair Value InterestRateDerivativeLiabilitiesAtFairValue	768000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	271808000	USD
CY2018Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	0	USD
CY2019Q4	are	Prepaid Rent And Tenant Security Deposits PrepaidRentAndTenantSecurityDeposits	275863000	USD
CY2018Q4	are	Prepaid Rent And Tenant Security Deposits PrepaidRentAndTenantSecurityDeposits	250923000	USD
CY2019Q4	us-gaap	Other Accounts Payable And Accrued Liabilities OtherAccountsPayableAndAccruedLiabilities	86078000	USD
CY2018Q4	us-gaap	Other Accounts Payable And Accrued Liabilities OtherAccountsPayableAndAccruedLiabilities	63897000	USD
CY2019Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	1320268000	USD
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CY2018	us-gaap	Profit Loss ProfitLoss	402793000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	194204000	USD
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	40882000	USD
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	23481000	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	25111000	USD
CY2019	us-gaap	Dividends Preferred Stock DividendsPreferredStock	3204000	USD
CY2018	us-gaap	Dividends Preferred Stock DividendsPreferredStock	5060000	USD
CY2017	us-gaap	Dividends Preferred Stock DividendsPreferredStock	7666000	USD
CY2019	us-gaap	Preferred Stock Accretion Of Redemption Discount PreferredStockAccretionOfRedemptionDiscount	2580000	USD
CY2018	us-gaap	Preferred Stock Accretion Of Redemption Discount PreferredStockAccretionOfRedemptionDiscount	4240000	USD
CY2017	us-gaap	Preferred Stock Accretion Of Redemption Discount PreferredStockAccretionOfRedemptionDiscount	11279000	USD
CY2019	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	6386000	USD
CY2018	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	6029000	USD
CY2017	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	4753000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	350995000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	363983000	USD
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	145395000	USD
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	112204000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	103010000	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	91546000	shares
CY2019	us-gaap	Incremental Common Shares Attributable To Equity Forward Agreements IncrementalCommonSharesAttributableToEquityForwardAgreements	320000	shares
CY2018	us-gaap	Incremental Common Shares Attributable To Equity Forward Agreements IncrementalCommonSharesAttributableToEquityForwardAgreements	311000	shares
CY2017	us-gaap	Incremental Common Shares Attributable To Equity Forward Agreements IncrementalCommonSharesAttributableToEquityForwardAgreements	517000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	112524000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	103321000	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	92063000	shares
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.13
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.53
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.59
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.12
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.52
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.58
CY2019	are	Minimum Percentage Of Taxable Income To Be Distributed MinimumPercentageOfTaxableIncomeToBeDistributed	0.90
CY2019	are	Percent Of Taxable Income Generally Distributed As Dividend PercentOfTaxableIncomeGenerallyDistributedAsDividend	1
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2018	us-gaap	Profit Loss ProfitLoss	402793000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	194204000	USD
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	23481000	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	25111000	USD
CY2018	are	Income Tax Reconciliation Rental Revenue Recognition IncomeTaxReconciliationRentalRevenueRecognition	-65901000	USD
CY2017	are	Income Tax Reconciliation Rental Revenue Recognition IncomeTaxReconciliationRentalRevenueRecognition	-121589000	USD
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation And Amortization IncomeTaxReconciliationNondeductibleExpenseDepreciationAndAmortization	161514000	USD
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation And Amortization IncomeTaxReconciliationNondeductibleExpenseDepreciationAndAmortization	137576000	USD
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	30771000	USD
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	23466000	USD
CY2018	are	Income Tax Reconciliation Nondeductible Expense Interest Expense IncomeTaxReconciliationNondeductibleExpenseInterestExpense	-6414000	USD
CY2017	are	Income Tax Reconciliation Nondeductible Expense Interest Expense IncomeTaxReconciliationNondeductibleExpenseInterestExpense	-5256000	USD
CY2018	us-gaap	Income Tax Reconciliation Disposition Of Assets IncomeTaxReconciliationDispositionOfAssets	-39393000	USD
CY2017	us-gaap	Income Tax Reconciliation Disposition Of Assets IncomeTaxReconciliationDispositionOfAssets	12166000	USD
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense Impairment Losses IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses	0	USD
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense Impairment Losses IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses	9011000	USD
CY2018	are	Effectiveincometaxratereconciliationnondeductibleexpenseunrealizedgainsorlossesonnonrealestateinvestments Effectiveincometaxratereconciliationnondeductibleexpenseunrealizedgainsorlossesonnonrealestateinvestments	-95757000	USD
CY2017	are	Effectiveincometaxratereconciliationnondeductibleexpenseunrealizedgainsorlossesonnonrealestateinvestments Effectiveincometaxratereconciliationnondeductibleexpenseunrealizedgainsorlossesonnonrealestateinvestments	0	USD
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-5043000	USD
CY2017	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	3642000	USD
CY2018	are	Taxable Income Before Dividend Deduction TaxableIncomeBeforeDividendDeduction	359089000	USD
CY2017	are	Taxable Income Before Dividend Deduction TaxableIncomeBeforeDividendDeduction	228109000	USD
CY2018	are	Dividend Deduction To Eliminate Taxable Income DividendDeductionToEliminateTaxableIncome	359089000	USD
CY2017	are	Dividend Deduction To Eliminate Taxable Income DividendDeductionToEliminateTaxableIncome	228109000	USD
CY2018	are	Net Taxable Income Loss NetTaxableIncomeLoss	0	USD
CY2017	are	Net Taxable Income Loss NetTaxableIncomeLoss	0	USD
CY2018	us-gaap	Payments Of Dividends PaymentsOfDividends	385800000	USD
CY2017	us-gaap	Payments Of Dividends PaymentsOfDividends	321800000	USD
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	4900000	USD
CY2018	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	4100000	USD
CY2017	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	3200000	USD
CY2019	are	Number Of Leases Held NumberOfLeasesHeld	820	Lease
CY2019	are	Number Of Tenants NumberOfTenants	622	Tenant
CY2019Q4	are	Remaining Aggregate Costs Under Contracts RemainingAggregateCostsUnderContracts	1100000000	USD
CY2019Q4	us-gaap	Contractual Obligation ContractualObligation	11100000	USD
CY2019Q4	us-gaap	Fair Value Investments Entities That Calculate Net Asset Value Per Share Unfunded Committments FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommittments	229500000	USD
CY2019	are	Limited Partnership Maximum Expiration Terms LimitedPartnershipMaximumExpirationTerms	P12Y
CY2019Q4	us-gaap	Convertible Preferred Stock Shares Issued Upon Conversion ConvertiblePreferredStockSharesIssuedUponConversion	578000	shares
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-9749000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-10435000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-1763000	USD
CY2019	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	2524000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	761000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	1777000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax	0	USD
CY2019	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	1777000	USD
CY2019	are	Reclassificationoflossesrelatedtoterminatedinterestratehedgeinstrumentstointerestexpenseincludedinnetlossincome Reclassificationoflossesrelatedtoterminatedinterestratehedgeinstrumentstointerestexpenseincludedinnetlossincome	-1702000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax	0	USD
CY2019	are	Reclassificationoflossesinaccumulatedothercomprehensiveincomelosstointerestexpenseuponswaptermination Reclassificationoflossesinaccumulatedothercomprehensiveincomelosstointerestexpenseuponswaptermination	-1702000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	686000	USD
CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	200000000.0	shares
CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	120800000	shares
CY2019Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	100000000.0	shares
CY2019Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2019	are	Preferred Stock Shares Additional Shares Authorized PreferredStockSharesAdditionalSharesAuthorized	200000000.0	shares
CY2019Q4	are	Preferred Stock Shares Additional Shares Authorized Issued And Outstanding PreferredStockSharesAdditionalSharesAuthorizedIssuedAndOutstanding	0	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	1858673	shares
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	64530000	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	41854000	USD
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	36083000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	68036000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	57341000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	42292000	USD
CY2019	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	24396000	USD
CY2018	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	22322000	USD
CY2017	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	16682000	USD
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P3Y
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P3Y
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate	0.180
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate	0.160
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.032
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.031
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0260
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0215
CY2019Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	168500000	USD
CY2019	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P4Y
CY2019	are	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Expected Period For Recognition Weighted Average Basis EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedExpectedPeriodForRecognitionWeightedAverageBasis	P19M
CY2019	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	12300000	USD
CY2019Q4	are	Disposal Group Including Assets Heldfor Sale Not Qualifyingas Discontinued Operations Areaof Real Estate DisposalGroupIncludingAssetsHeldforSaleNotQualifyingasDiscontinuedOperationsAreaofRealEstate	526006	sqft
CY2019Q4	are	Disposal Group Including Assets Heldfor Sale Not Qualifyingas Discontinued Operations Assets DisposalGroupIncludingAssetsHeldforSaleNotQualifyingasDiscontinuedOperationsAssets	59412000	USD
CY2018Q4	are	Disposal Group Including Assets Heldfor Sale Not Qualifyingas Discontinued Operations Assets DisposalGroupIncludingAssetsHeldforSaleNotQualifyingasDiscontinuedOperationsAssets	31260000	USD
CY2019Q4	are	Disposal Group Including Assets Heldfor Sale Not Qualifyingas Discontinued Operations Liabilities DisposalGroupIncludingAssetsHeldforSaleNotQualifyingasDiscontinuedOperationsLiabilities	2860000	USD
CY2018Q4	are	Disposal Group Including Assets Heldfor Sale Not Qualifyingas Discontinued Operations Liabilities DisposalGroupIncludingAssetsHeldforSaleNotQualifyingasDiscontinuedOperationsLiabilities	2476000	USD
CY2019Q4	are	Disposal Group Including Assets Heldfor Sale Not Qualifyingas Discontinued Operations Accumulated Other Comprehensive Income Loss DisposalGroupIncludingAssetsHeldforSaleNotQualifyingasDiscontinuedOperationsAccumulatedOtherComprehensiveIncomeLoss	-536000	USD
CY2018Q4	are	Disposal Group Including Assets Heldfor Sale Not Qualifyingas Discontinued Operations Accumulated Other Comprehensive Income Loss DisposalGroupIncludingAssetsHeldforSaleNotQualifyingasDiscontinuedOperationsAccumulatedOtherComprehensiveIncomeLoss	-768000	USD
CY2019Q4	are	Disposal Group Including Assets Heldfor Sale Not Qualifyingas Discontinued Operations Net Assets DisposalGroupIncludingAssetsHeldforSaleNotQualifyingasDiscontinuedOperationsNetAssets	57088000	USD
CY2018Q4	are	Disposal Group Including Assets Heldfor Sale Not Qualifyingas Discontinued Operations Net Assets DisposalGroupIncludingAssetsHeldforSaleNotQualifyingasDiscontinuedOperationsNetAssets	29552000	USD
CY2019Q1	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	358842000	USD
CY2019Q2	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	373856000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	390484000	USD
CY2019Q4	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	408114000	USD
CY2019Q1	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	123598000	USD
CY2019Q2	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	76330000	USD
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-49773000	USD
CY2019Q4	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	199618000	USD
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.11
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.68
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.44
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.75
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.11
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.68
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.44
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.74
CY2018Q1	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	320139000	USD
CY2018Q2	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	325034000	USD
CY2018Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	341823000	USD
CY2018Q4	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	340463000	USD
CY2018Q1	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	132387000	USD
CY2018Q2	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	52016000	USD
CY2018Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	208940000	USD
CY2018Q4	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-31740000	USD
CY2018Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.33
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.51
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.01
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.30
CY2018Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.32
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.51
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.99
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.30
CY2019Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	14844038000	USD
CY2019Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	346890000	USD
CY2019Q4	us-gaap	Other Assets OtherAssets	893714000	USD
CY2019Q4	us-gaap	Assets Assets	18390503000	USD
CY2019Q4	us-gaap	Secured Debt SecuredDebt	349352000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	189681000	USD
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	53008000	USD
CY2019Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	10691000	USD
CY2019Q4	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	641844000	USD
CY2019Q4	are	Deferred Costs Leasing And Finance Net DeferredCostsLeasingAndFinanceNet	270043000	USD
CY2019Q4	us-gaap	Equity Securities Fv Ni And Without Readily Determinable Fair Value EquitySecuritiesFvNiAndWithoutReadilyDeterminableFairValue	1140594000	USD
CY2019Q4	us-gaap	Investments In And Advances To Affiliates Balance Principal Amount InvestmentsInAndAdvancesToAffiliatesBalancePrincipalAmount	0	USD
CY2019Q4	us-gaap	Senior Long Term Notes SeniorLongTermNotes	6044127000	USD
CY2019Q4	us-gaap	Line Of Credit LineOfCredit	384000000	USD
CY2019Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	1320268000	USD
CY2019Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	126278000	USD
CY2019Q4	us-gaap	Liabilities Liabilities	8224025000	USD
CY2019Q4	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	12300000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	8865826000	USD
CY2019Q4	us-gaap	Minority Interest MinorityInterest	1288352000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	10154178000	USD
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	18390503000	USD
CY2018Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	11913693000	USD
CY2018Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	237507000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	234181000	USD
CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	37949000	USD
CY2018Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	9798000	USD
CY2018Q4	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	530237000	USD
CY2018Q4	are	Deferred Costs Leasing And Finance Net DeferredCostsLeasingAndFinanceNet	239070000	USD
CY2018Q4	us-gaap	Equity Securities Fv Ni And Without Readily Determinable Fair Value EquitySecuritiesFvNiAndWithoutReadilyDeterminableFairValue	892264000	USD
CY2018Q4	us-gaap	Investments In And Advances To Affiliates Balance Principal Amount InvestmentsInAndAdvancesToAffiliatesBalancePrincipalAmount	0	USD
CY2018Q4	us-gaap	Other Assets OtherAssets	370257000	USD
CY2018Q4	us-gaap	Assets Assets	14464956000	USD
CY2018Q4	us-gaap	Secured Debt SecuredDebt	630547000	USD
CY2018Q4	us-gaap	Senior Long Term Notes SeniorLongTermNotes	4292293000	USD
CY2018Q4	us-gaap	Line Of Credit LineOfCredit	208000000	USD
CY2018Q4	us-gaap	Loans Payable To Bank LoansPayableToBank	347415000	USD
CY2018Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	981707000	USD
CY2018Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	110280000	USD
CY2018Q4	us-gaap	Liabilities Liabilities	6570242000	USD
CY2018Q4	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	10786000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	7341965000	USD
CY2018Q4	us-gaap	Minority Interest MinorityInterest	541963000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	7883928000	USD
CY2018Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	14464956000	USD
CY2019	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	1531296000	USD
CY2019	us-gaap	Direct Costs Of Leased And Rented Property Or Equipment DirectCostsOfLeasedAndRentedPropertyOrEquipment	445492000	USD
CY2019	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	108823000	USD
CY2019	us-gaap	Interest Expense InterestExpense	173675000	USD
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	544612000	USD
CY2019	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	12334000	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-47570000	USD
CY2019	us-gaap	Costs And Expenses CostsAndExpenses	1332506000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	10136000	USD
CY2019	us-gaap	Income Loss From Subsidiaries Before Tax IncomeLossFromSubsidiariesBeforeTax	0	USD
CY2019	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	194647000	USD
CY2019	are	Gain Loss On Sale Of Rental Properties Net Of Applicable Income Taxes GainLossOnSaleOfRentalPropertiesNetOfApplicableIncomeTaxes	474000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	404047000	USD
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	40882000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	363165000	USD
CY2019	us-gaap	Dividends Preferred Stock DividendsPreferredStock	3204000	USD
CY2019	us-gaap	Preferred Stock Accretion Of Redemption Discount PreferredStockAccretionOfRedemptionDiscount	2580000	USD
CY2019	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	6386000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	350995000	USD
CY2018	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	1327459000	USD
CY2018	us-gaap	Direct Costs Of Leased And Rented Property Or Equipment DirectCostsOfLeasedAndRentedPropertyOrEquipment	381120000	USD
CY2018	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	90405000	USD
CY2018	us-gaap	Interest Expense InterestExpense	157495000	USD
CY2018	us-gaap	Depreciation And Amortization DepreciationAndAmortization	477661000	USD
CY2018	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	6311000	USD
CY2018	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-1122000	USD
CY2018	us-gaap	Costs And Expenses CostsAndExpenses	1114114000	USD
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CY2018	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	136763000	USD
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CY2018	us-gaap	Net Income Loss NetIncomeLoss	379312000	USD
CY2018	us-gaap	Dividends Preferred Stock DividendsPreferredStock	5060000	USD
CY2018	us-gaap	Preferred Stock Accretion Of Redemption Discount PreferredStockAccretionOfRedemptionDiscount	4240000	USD
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CY2017	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	203000	USD
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CY2017	us-gaap	Gain Loss On Sale Of Properties Net Of Applicable Income Taxes GainLossOnSaleOfPropertiesNetOfApplicableIncomeTaxes	111000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	194204000	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	25111000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	169093000	USD
CY2017	us-gaap	Dividends Preferred Stock DividendsPreferredStock	7666000	USD
CY2017	us-gaap	Preferred Stock Accretion Of Redemption Discount PreferredStockAccretionOfRedemptionDiscount	11279000	USD
CY2017	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	4753000	USD
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	145395000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	404047000	USD
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CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	1777000	USD
CY2019	are	Reclassificationoflossesrelatedtoterminatedinterestratehedgeinstrumentstointerestexpenseincludedinnetlossincome Reclassificationoflossesrelatedtoterminatedinterestratehedgeinstrumentstointerestexpenseincludedinnetlossincome	-1702000	USD
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CY2019	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	2524000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	2524000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	686000	USD
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CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	392105000	USD
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CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	368624000	USD
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CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	44603000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	238807000	USD
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CY2017	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	200000000	USD
CY2017	are	Transfers Due To Due From Parent Entity TransfersDueToDueFromParentEntity	0	USD
CY2017	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	22361000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1420341000	USD
CY2017	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	1723000	USD
CY2017	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	135820000	USD
CY2017	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	10019000	USD
CY2017	us-gaap	Payments For Repurchase Of Convertible Preferred Stock PaymentsForRepurchaseOfConvertiblePreferredStock	17934000	USD
CY2017	us-gaap	Payments For Repurchase Of Redeemable Preferred Stock PaymentsForRepurchaseOfRedeemablePreferredStock	130350000	USD
CY2017	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1275397000	USD
CY2017	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	312131000	USD
CY2017	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	9619000	USD
CY2017	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	44931000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	141366000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	277186000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	112113000	USD
CY2017	us-gaap	Increase Decrease In Construction Payables IncreaseDecreaseInConstructionPayables	-11034000	USD
CY2017	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	179154000	USD
CY2017	are	Contributionofrealestatefromnoncontrollinginterests Contributionofrealestatefromnoncontrollinginterests	8597000	USD
CY2017	are	Contribution Of Real Estate To An Unconsolidated Real Estate Joint Venture ContributionOfRealEstateToAnUnconsolidatedRealEstateJointVenture	6998000	USD
CY2019Q4	srt	Real Estate And Accumulated Depreciation Amount Of Encumbrances RealEstateAndAccumulatedDepreciationAmountOfEncumbrances	349352000	USD
CY2019Q4	us-gaap	Real Estate And Accumulated Depreciation Initial Cost Of Land RealEstateAndAccumulatedDepreciationInitialCostOfLand	3173913000	USD
CY2019Q4	us-gaap	Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements	5681985000	USD
CY2019Q4	are	Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Of Building And Improvements RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionOfBuildingAndImprovements	8697058000	USD
CY2019Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Land RealEstateAndAccumulatedDepreciationCarryingAmountOfLand	3173913000	USD
CY2019Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements	14379043000	USD
CY2019Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	17552956000	USD
CY2019Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	2708918000	USD
CY2019Q4	us-gaap	Real Estate Investments RealEstateInvestments	14844038000	USD
CY2018Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	14181780000	USD
CY2017Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	12178255000	USD
CY2016Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	10632518000	USD
CY2019	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	2240376000	USD
CY2018	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	1057036000	USD
CY2017	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	707522000	USD
CY2019	us-gaap	Real Estate Other Additions RealEstateOtherAdditions	1143035000	USD
CY2018	us-gaap	Real Estate Other Additions RealEstateOtherAdditions	959410000	USD
CY2017	us-gaap	Real Estate Other Additions RealEstateOtherAdditions	881463000	USD
CY2019	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	12235000	USD
CY2018	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	12921000	USD
CY2017	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	43248000	USD
CY2019Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	17552956000	USD
CY2018Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	14181780000	USD
CY2017Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	12178255000	USD
CY2018Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	2268087000	USD
CY2017Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	1880236000	USD
CY2016Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	1554546000	USD
CY2019	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	448661000	USD
CY2018	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	390471000	USD
CY2017	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	348064000	USD
CY2019	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	7830000	USD
CY2018	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	2620000	USD
CY2017	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	22374000	USD
CY2019Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	2708918000	USD
CY2018Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	2268087000	USD
CY2017Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	1880236000	USD

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$ARE
ALEXANDRIA REAL ESTATE EQUITIES, INC. Stock $are

2019 Q4 Form 10-K Financial Statement

#000103544320000042 Filed on February 04, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ARE ALEXANDRIA REAL ESTATE EQUITIES, INC. Stock $are

2019 Q4 Form 10-K Financial Statement

#000103544320000042 Filed on February 04, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ARE
ALEXANDRIA REAL ESTATE EQUITIES, INC. Stock $are