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

$are Overview Financials Valuation SEC Filings Company Website

2014 Q1 Form 10-K Financial Statement

#000103544314000013 Filed on March 03, 2014

Income Statement

Concept	2014 Q1	2013 Q2	2012 Q4
Revenue	$176.2M	$153.9M	$151.3M
YoY Change	17.39%	5.94%	8.62%
Cost Of Revenue	$52.50M	$46.30M	$46.00M
YoY Change	16.15%	9.98%	10.58%
Gross Profit	$123.7M	$107.7M	$104.3M
YoY Change	17.92%	4.06%	6.76%
Gross Profit Margin	70.21%	69.97%	68.96%
Selling, General & Admin	$13.20M	$12.50M	$12.60M
YoY Change	13.79%	1.63%	18.87%
% of Gross Profit	10.67%	11.61%	12.08%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$50.42M	$46.60M	$48.10M
YoY Change	7.28%	-11.07%	17.6%
% of Gross Profit	40.76%	43.27%	46.12%
Operating Expenses	$63.70M	$58.70M	$59.10M
YoY Change	10.78%	-6.83%	17.5%
Operating Profit	$60.00M	$49.00M	$45.20M
YoY Change	26.58%	20.99%	-4.64%
Interest Expense	$19.12M	$15.98M	-$17.90M
YoY Change	6.12%	-10.85%	20.95%
% of Operating Profit	31.87%	32.61%	-39.6%
Other Income/Expense, Net
YoY Change
Pretax Income	$40.90M	$32.30M	$25.20M
YoY Change	39.12%	54.55%	-22.7%
Income Tax	$0.00	$0.00	$0.00
% Of Pretax Income	0.0%	0.0%	0.0%
Net Earnings	$39.72M	$32.11M	$27.80M
YoY Change	39.76%	59.92%	-18.95%
Net Earnings / Revenue	22.54%	20.86%	18.38%
Basic Earnings Per Share
Diluted Earnings Per Share	$557.0K	$471.6K	$440.6K
COMMON SHARES
Basic Shares Outstanding	71.64M shares	66.97K shares	63.69M shares
Diluted Shares Outstanding		66.97K shares

Balance Sheet

Concept	2014 Q1	2013 Q2	2012 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$75.00M	$302.0M	$141.0M
YoY Change	-13.79%	272.84%	78.48%
Cash & Equivalents	$74.97M	$302.2M	$141.0M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables	$11.00M	$8.000M	$8.000M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$86.00M	$310.0M	$149.0M
YoY Change	-10.42%	256.32%	73.26%
LONG-TERM ASSETS
Property, Plant & Equipment	$6.883B	$6.453B	$6.425B
YoY Change	7.97%	3.95%	6.94%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$217.0M	$6.000K	$6.000K
YoY Change	3616566.67%	-99.99%	-81.25%
Other Assets	$425.0M	$373.0M	$370.0M
YoY Change	18.06%	6.88%	22.92%
Total Long-Term Assets	$7.670B	$7.069B	$7.001B
YoY Change	9.65%	4.65%	7.91%
TOTAL ASSETS
Total Short-Term Assets	$86.00M	$310.0M	$149.0M
Total Long-Term Assets	$7.670B	$7.069B	$7.001B
Total Assets	$7.756B	$7.379B	$7.150B
YoY Change	9.38%	7.85%	8.76%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$444.0M	$368.0M	$424.0M
YoY Change	20.98%	5.75%	393.02%
Accrued Expenses
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	$500.0M	$420.0M	$465.0M
YoY Change	21.65%	8.81%	190.63%
LONG-TERM LIABILITIES
Long-Term Debt	$3.252B	$2.959B	$3.182B
YoY Change	2.1%	-1.33%	14.5%
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities	$3.252B	$2.959B	$3.182B
YoY Change	2.1%	-1.33%	6.74%
TOTAL LIABILITIES
Total Short-Term Liabilities	$500.0M	$420.0M	$465.0M
Total Long-Term Liabilities	$3.252B	$2.959B	$3.182B
Total Liabilities	$3.752B	$3.380B	$3.647B
YoY Change	4.34%	-1.89%	16.1%
SHAREHOLDERS EQUITY
Retained Earnings
YoY Change
Common Stock	$712.0K	$710.0K	$632.0K
YoY Change	12.48%		2.6%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$3.923B	$3.938B	$3.442B
YoY Change
Total Liabilities & Shareholders Equity	$8.136B	$7.379B	$7.150B
YoY Change	14.74%	7.85%	8.76%

Cashflow Statement

Concept	2014 Q1	2013 Q2	2012 Q4
OPERATING ACTIVITIES
Net Income	$39.72M	$32.11M	$27.80M
YoY Change	39.76%	59.92%	-18.95%
Depreciation, Depletion And Amortization	$50.42M	$46.60M	$48.10M
YoY Change	7.28%	-11.07%	17.6%
Cash From Operating Activities	$73.26M	$96.90M	$78.00M
YoY Change	55.08%	3.3%	16.42%
INVESTING ACTIVITIES
Capital Expenditures	-$153.9M	-$159.7M	-$143.0M
YoY Change	10.56%	-0.93%	7.04%
Acquisitions
YoY Change
Other Investing Activities	-$8.800M	$12.80M	-$6.700M
YoY Change	-112.63%	-272.97%	48.89%
Cash From Investing Activities	-$162.7M	-$147.0M	-$149.7M
YoY Change	134.05%	-12.76%	8.4%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		$534.5M
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	$106.5M	267.0M	118.7M
YoY Change	-437.92%	245.85%	44.93%
NET CHANGE
Cash From Operating Activities	$73.26M	96.90M	78.00M
Cash From Investing Activities	-$162.7M	-147.0M	-149.7M
Cash From Financing Activities	$106.5M	267.0M	118.7M
Net Change In Cash	$17.01M	216.9M	47.00M
YoY Change	-131.63%	8576.0%	335.19%
FREE CASH FLOW
Cash From Operating Activities	$73.26M	$96.90M	$78.00M
Capital Expenditures	-$153.9M	-$159.7M	-$143.0M
Free Cash Flow	$227.2M	$256.6M	$221.0M
YoY Change	21.84%	0.63%	10.17%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2012Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	105520000	USD
CY2013Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	98037000	USD
CY2012Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	8449000	USD
CY2013Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	9918000	USD
CY2013Q4	us-gaap	Accumulated Amortization Deferred Finance Costs AccumulatedAmortizationDeferredFinanceCosts	72418000	USD
CY2012Q4	us-gaap	Accumulated Amortization Deferred Finance Costs AccumulatedAmortizationDeferredFinanceCosts	63220000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-24833000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-36204000	USD
CY2012Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	3086052000	USD
CY2013Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	3572281000	USD
CY2011	us-gaap	Adjustments To Additional Paid In Capital Equity Component Of Convertible Debt AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt	-2981000	USD
CY2013	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	23612000	USD
CY2011	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	22386000	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	22082000	USD
CY2011	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	3819000	USD
CY2013	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	529000	USD
CY2012	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	511000	USD
CY2013	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	9936000	USD
CY2012	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	9832000	USD
CY2011	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	9300000	USD
CY2012Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	9240000	USD
CY2013Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	7386000	USD
CY2013Q4	us-gaap	Assets Assets	7529764000	USD
CY2012Q4	us-gaap	Assets Assets	7150116000	USD
CY2012Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation AssetsOfDisposalGroupIncludingDiscontinuedOperation	134825000	USD
CY2013Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation AssetsOfDisposalGroupIncludingDiscontinuedOperation	7747000	USD
CY2013Q4	us-gaap	Available For Sale Equity Securities Amortized Cost Basis AvailableForSaleEquitySecuritiesAmortizedCostBasis	2879000	USD
CY2012Q4	us-gaap	Available For Sale Equity Securities Amortized Cost Basis AvailableForSaleEquitySecuritiesAmortizedCostBasis	1236000	USD
CY2012Q4	us-gaap	Available For Sale Securities Fair Value Disclosure AvailableForSaleSecuritiesFairValueDisclosure	2709000	USD
CY2013Q4	us-gaap	Available For Sale Securities Fair Value Disclosure AvailableForSaleSecuritiesFairValueDisclosure	4469000	USD
CY2012Q4	us-gaap	Available For Sale Securities Gross Unrealized Losses1 AvailableForSaleSecuritiesGrossUnrealizedLosses1	88000	USD
CY2013Q4	us-gaap	Available For Sale Securities Gross Unrealized Losses1 AvailableForSaleSecuritiesGrossUnrealizedLosses1	587000	USD
CY2013Q4	us-gaap	Availableforsale Securities Gross Unrealized Gain AvailableforsaleSecuritiesGrossUnrealizedGain	2177000	USD
CY2012Q4	us-gaap	Availableforsale Securities Gross Unrealized Gain AvailableforsaleSecuritiesGrossUnrealizedGain	1561000	USD
CY2012	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	46087000	USD
CY2013	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	-21310000	USD
CY2011	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	3492000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	140971000	USD
CY2013Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	57696000	USD
CY2010Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	91232000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	78539000	USD
CY2011	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-12693000	USD
CY2013	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-83275000	USD
CY2012	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	62432000	USD
CY2013	us-gaap	Cash Flow Hedge Gain Loss To Be Reclassified Within Twelve Months CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths	6200000	USD
CY2013Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2012Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2013Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2012Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2012Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2013Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2012Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	63244645	shares
CY2013Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	71172197	shares
CY2012Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	63244645	shares
CY2013Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	71172197	shares
CY2012Q4	us-gaap	Common Stock Value CommonStockValue	632000	USD
CY2013Q4	us-gaap	Common Stock Value CommonStockValue	712000	USD
CY2013	us-gaap	Comparability Of Prior Year Financial Data ComparabilityOfPriorYearFinancialData	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;text-decoration:underline;">Reclassifications</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Certain prior period amounts have been reclassified to conform to the current period presentation.</font></div><div style="line-height:120%;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></div>
CY2013	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	124846000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	111804000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	115242000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	4050000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	3364000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	3948000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	119292000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	128794000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	115168000	USD
CY2013Q4	us-gaap	Contractual Obligation ContractualObligation	13900000	USD
CY2013Q4	us-gaap	Convertible Preferred Stock Nonredeemable Or Redeemable Issuer Option Value ConvertiblePreferredStockNonredeemableOrRedeemableIssuerOptionValue	250000000	USD
CY2012Q4	us-gaap	Convertible Preferred Stock Nonredeemable Or Redeemable Issuer Option Value ConvertiblePreferredStockNonredeemableOrRedeemableIssuerOptionValue	250000000	USD
CY2013Q4	us-gaap	Cost Method Investments CostMethodInvestments	135819000	USD
CY2012Q4	us-gaap	Cost Method Investments CostMethodInvestments	112333000	USD
CY2013Q4	us-gaap	Construction Payable Current And Noncurrent ConstructionPayableCurrentAndNoncurrent	78098000	USD
CY2012Q4	us-gaap	Construction Payable Current And Noncurrent ConstructionPayableCurrentAndNoncurrent	83104000	USD
CY2013	us-gaap	Costs And Expenses CostsAndExpenses	496626000	USD
CY2012	us-gaap	Costs And Expenses CostsAndExpenses	479649000	USD
CY2011	us-gaap	Costs And Expenses CostsAndExpenses	419510000	USD
CY2013Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	3062837000	USD
CY2013Q4	us-gaap	Debt Instrument Interest Rate Effective Percentage DebtInstrumentInterestRateEffectivePercentage	0.0376
CY2013Q4	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	1776000	USD
CY2012Q4	us-gaap	Deferred Costs Leasing Accumulated Amortization DeferredCostsLeasingAccumulatedAmortization	127005000	USD
CY2013Q4	us-gaap	Deferred Costs Leasing Accumulated Amortization DeferredCostsLeasingAccumulatedAmortization	146881000	USD
CY2012Q4	us-gaap	Deferred Costs Leasing Gross DeferredCostsLeasingGross	250071000	USD
CY2013Q4	us-gaap	Deferred Costs Leasing Gross DeferredCostsLeasingGross	293879000	USD
CY2013Q4	us-gaap	Deferred Costs Leasing Net DeferredCostsLeasingNet	146998000	USD
CY2012Q4	us-gaap	Deferred Costs Leasing Net DeferredCostsLeasingNet	123066000	USD
CY2012Q4	us-gaap	Deferred Finance Costs Gross DeferredFinanceCostsGross	100202000	USD
CY2013Q4	us-gaap	Deferred Finance Costs Gross DeferredFinanceCostsGross	118078000	USD
CY2013Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	45660000	USD
CY2012Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	36982000	USD
CY2013Q4	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	190425000	USD
CY2012Q4	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	170396000	USD
CY2012	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1400000	USD
CY2013	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1600000	USD
CY2011	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1300000	USD
CY2013	us-gaap	Depreciation And Amortization DepreciationAndAmortization	189123000	USD
CY2011	us-gaap	Depreciation And Amortization DepreciationAndAmortization	150906000	USD
CY2012	us-gaap	Depreciation And Amortization DepreciationAndAmortization	185687000	USD
CY2013Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	0	USD
CY2013	us-gaap	Derivative Instruments Gain Loss Recognized In Income Ineffective Portion And Amount Excluded From Effectiveness Testing Net DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet	0	USD
CY2012	us-gaap	Derivative Instruments Gain Loss Recognized In Income Ineffective Portion And Amount Excluded From Effectiveness Testing Net DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet	0	USD
CY2011	us-gaap	Derivative Instruments Gain Loss Recognized In Income Ineffective Portion And Amount Excluded From Effectiveness Testing Net DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet	0	USD
CY2013Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	6191000	USD
CY2012Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	20661000	USD
CY2013	us-gaap	Derivatives Methods Of Accounting Hedging Derivatives DerivativesMethodsOfAccountingHedgingDerivatives	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;text-decoration:underline;">Interest rate swap agreements</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We are exposed to certain risks arising from both our business operations and economic conditions. We principally manage our exposures to a wide variety of business and operational risks through management of our core business activities. We manage economic risks, including interest rate, liquidity, and credit risk, primarily by managing the amount, sources, and duration of our debt funding and the use of interest rate swap agreements. Specifically, we enter into interest rate swap agreements to manage exposures that arise from business activities that result in the payment of future known and uncertain cash amounts, the value of which are determined by interest rates. Our interest rate swap agreements are used to manage differences in the amount, timing, and duration of our known or expected cash payments principally related to our borrowings based on LIBOR primarily in our unsecured senior line of credit and unsecured senior bank term loans. We do not use derivatives for trading or speculative purposes and currently all of our derivatives are designated as hedges. Our objectives in using interest rate swap agreements are to add stability to interest expense and to manage our exposure to interest rate movements in accordance with our interest rate risk management strategy. All of our interest rate swaps are designated as cash flow hedges. Interest rate swap agreements designated as cash flow hedges involve the receipt of variable-rate amounts from a counterparty in exchange for the Company making fixed-rate payments over the life of the interest rate swap agreements without exchange of the underlying notional amount of interest rate swap agreements.</font></div><div style="line-height:120%;text-align:left;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We utilize interest rate swap agreements to hedge a portion of our exposure to variable interest rates primarily associated with our unsecured senior line of credit and unsecured senior bank term loans. We recognize our interest rate swap agreements as either assets or liabilities on the balance sheet at fair value.  The accounting for changes in fair value (i.e., gains or losses) of a derivative instrument depends on whether it has been designated and qualifies as part of a hedging relationship and, further, on the type of hedging relationship. For those derivative instruments that are designated and qualify as hedging instruments, a company must designate the hedging instrument, based on the hedged exposure, as a fair value hedge, a cash flow hedge, or a hedge of a net investment in a foreign operation. Our interest rate swap agreements are considered cash flow hedges because they are designated and qualify as hedges of the exposure to variability in expected future cash flows. Hedge accounting generally provides for the matching of the timing of gain or loss recognition on the hedging instrument with the recognition of the changes in the earnings effect of the hedged transactions in a cash flow hedge. All of our interest rate swap agreements meet the criteria to be deemed “highly effective” in reducing our exposure to variable interest rates. We formally document all relationships between interest rate swap agreements and hedged items, including the method for evaluating effectiveness and the risk strategy. We make an assessment at the inception of each interest rate swap agreement and on an ongoing basis to determine whether these instruments are “highly effective” in offsetting changes in cash flows associated with the hedged items. The ineffective portion of each interest rate swap agreement is immediately recognized in earnings. While we intend to continue to meet the conditions for such hedge accounting, if swaps did not qualify as “highly effective,” the changes in the fair values of the derivatives used as hedges would be reflected in earnings.</font></div><div style="line-height:120%;text-align:left;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">  </font></div><div style="line-height:120%;text-align:left;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The effective portion of changes in the fair value of our interest rate swap agreements that are designated and that qualify as cash flow hedges is recognized in accumulated other comprehensive income. Amounts classified in accumulated other comprehensive income will be reclassified into earnings in the period during which the hedged transactions affect earnings. </font></div><div style="line-height:120%;text-align:left;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The fair value of each interest rate swap 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 swap 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 using “significant unobservable inputs” such as estimates of current credit spreads to evaluate the likelihood of default, which we have determined to be insignificant to the overall fair value of our interest rate swap agreements.</font></div></div>
CY2011	us-gaap	Direct Costs Of Leased And Rented Property Or Equipment DirectCostsOfLeasedAndRentedPropertyOrEquipment	157634000	USD
CY2012	us-gaap	Direct Costs Of Leased And Rented Property Or Equipment DirectCostsOfLeasedAndRentedPropertyOrEquipment	172756000	USD
CY2013	us-gaap	Direct Costs Of Leased And Rented Property Or Equipment DirectCostsOfLeasedAndRentedPropertyOrEquipment	189039000	USD
CY2013	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax	121000	USD
CY2011	us-gaap	Disposal Group Including Discontinued Operation Interest Expense DisposalGroupIncludingDiscontinuedOperationInterestExpense	71000	USD
CY2012	us-gaap	Disposal Group Including Discontinued Operation Interest Expense DisposalGroupIncludingDiscontinuedOperationInterestExpense	0	USD
CY2013	us-gaap	Disposal Group Including Discontinued Operation Interest Expense DisposalGroupIncludingDiscontinuedOperationInterestExpense	0	USD
CY2012	us-gaap	Disposal Group Including Discontinued Operation Operating Expense DisposalGroupIncludingDiscontinuedOperationOperatingExpense	11313000	USD
CY2013	us-gaap	Disposal Group Including Discontinued Operation Operating Expense DisposalGroupIncludingDiscontinuedOperationOperatingExpense	1981000	USD
CY2011	us-gaap	Disposal Group Including Discontinued Operation Operating Expense DisposalGroupIncludingDiscontinuedOperationOperatingExpense	11482000	USD
CY2011	us-gaap	Disposal Group Including Discontinued Operation Operating Income Loss DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss	26262000	USD
CY2012	us-gaap	Disposal Group Including Discontinued Operation Operating Income Loss DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss	24970000	USD
CY2013	us-gaap	Disposal Group Including Discontinued Operation Operating Income Loss DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss	2676000	USD
CY2012Q4	us-gaap	Disposal Group Including Discontinued Operation Other Assets DisposalGroupIncludingDiscontinuedOperationOtherAssets	1714000	USD
CY2013Q4	us-gaap	Disposal Group Including Discontinued Operation Other Assets DisposalGroupIncludingDiscontinuedOperationOtherAssets	103000	USD
CY2012Q4	us-gaap	Disposal Group Including Discontinued Operation Property Plant And Equipment Net DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNet	133111000	USD
CY2013Q4	us-gaap	Disposal Group Including Discontinued Operation Property Plant And Equipment Net DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNet	7644000	USD
CY2013	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	4657000	USD
CY2012	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	36283000	USD
CY2011	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	37744000	USD
CY2013	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	182104000	USD
CY2012	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	131790000	USD
CY2011	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	28357000	USD
CY2013Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	54420000	USD
CY2012Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	41401000	USD
CY2013	us-gaap	Dividends Preferred Stock DividendsPreferredStock	25885000	USD
CY2012	us-gaap	Dividends Preferred Stock DividendsPreferredStock	27328000	USD
CY2011	us-gaap	Dividends Preferred Stock DividendsPreferredStock	28357000	USD
CY2013	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	25885000	USD
CY2011	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	112353000	USD
CY2012	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	27678000	USD
CY2012Q4	us-gaap	Due From Affiliates DueFromAffiliates	0	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	-14721000	USD
CY2012Q4	us-gaap	Due To Affiliate Current And Noncurrent DueToAffiliateCurrentAndNoncurrent	0	USD
CY2013	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	1.60
CY2012	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	1.09
CY2011	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	1.73
CY2012Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.29
CY2012Q1	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.30
CY2013Q4	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.51
CY2012Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.17
CY2013Q1	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.36
CY2012Q4	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.33
CY2013Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.38
CY2013Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.35
CY2013	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-2197000	USD
CY2011	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-5230000	USD
CY2012	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	139000	USD
CY2012Q4	us-gaap	Equity Method Investments EquityMethodInvestments	6000	USD
CY2013Q4	us-gaap	Equity Method Investments EquityMethodInvestments	0	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	-11405000	USD
CY2012	us-gaap	Gain Loss On Disposition Of Real Estate Discontinued Operations GainLossOnDispositionOfRealEstateDiscontinuedOperations	1564000	USD
CY2013	us-gaap	Gain Loss On Disposition Of Real Estate Discontinued Operations GainLossOnDispositionOfRealEstateDiscontinuedOperations	-121000	USD
CY2011	us-gaap	Gain Loss On Disposition Of Real Estate Discontinued Operations GainLossOnDispositionOfRealEstateDiscontinuedOperations	0	USD
CY2013	us-gaap	Gain Loss On Sale Of Properties Net Of Applicable Income Taxes GainLossOnSaleOfPropertiesNetOfApplicableIncomeTaxes	4824000	USD
CY2011	us-gaap	Gain Loss On Sale Of Properties Net Of Applicable Income Taxes GainLossOnSaleOfPropertiesNetOfApplicableIncomeTaxes	46000	USD
CY2012	us-gaap	Gain Loss On Sale Of Properties Net Of Applicable Income Taxes GainLossOnSaleOfPropertiesNetOfApplicableIncomeTaxes	1864000	USD
CY2011	us-gaap	Gain On Sale Of Investments GainOnSaleOfInvestments	4846000	USD
CY2012	us-gaap	Gain On Sale Of Investments GainOnSaleOfInvestments	15018000	USD
CY2013	us-gaap	Gain On Sale Of Investments GainOnSaleOfInvestments	7050000	USD
CY2012	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-2225000	USD
CY2011	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-6485000	USD
CY2013	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-1992000	USD
CY2013	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	48520000	USD
CY2012	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	47747000	USD
CY2011	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	41112000	USD
CY2013	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	0	USD
CY2011	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	994000	USD
CY2012	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	11400000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	117270000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	94848000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Per Basic And Diluted Share IncomeLossFromContinuingOperationsPerBasicAndDilutedShare	1.59
CY2012	us-gaap	Income Loss From Continuing Operations Per Basic And Diluted Share IncomeLossFromContinuingOperationsPerBasicAndDilutedShare	0.95
CY2011	us-gaap	Income Loss From Continuing Operations Per Basic And Diluted Share IncomeLossFromContinuingOperationsPerBasicAndDilutedShare	1.42
CY2013	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	900000	USD
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	8816000	USD
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	18077000	USD
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	0	USD
CY2013	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	0	USD
CY2012	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	102126000	USD
CY2013	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	136217000	USD
CY2011	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	131418000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	134525000	USD
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	0	USD
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic And Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare	0.31
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic And Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare	0.14
CY2013	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic And Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare	0.01
CY2011	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
CY2012	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
CY2013	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
CY2011	us-gaap	Income Tax Reconciliation Disposition Of Assets IncomeTaxReconciliationDispositionOfAssets	24000	USD
CY2012	us-gaap	Income Tax Reconciliation Disposition Of Assets IncomeTaxReconciliationDispositionOfAssets	-394000	USD
CY2011	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation And Amortization IncomeTaxReconciliationNondeductibleExpenseDepreciationAndAmortization	3705000	USD
CY2012	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation And Amortization IncomeTaxReconciliationNondeductibleExpenseDepreciationAndAmortization	-15501000	USD
CY2011	us-gaap	Income Tax Reconciliation Nondeductible Expense Impairment Losses IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses	0	USD
CY2012	us-gaap	Income Tax Reconciliation Nondeductible Expense Impairment Losses IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses	-13450000	USD
CY2011	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-8249000	USD
CY2012	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-11488000	USD
CY2012	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-2268000	USD
CY2011	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-4124000	USD
CY2011	us-gaap	Increase Decrease In Deferred Leasing Fees IncreaseDecreaseInDeferredLeasingFees	56226000	USD
CY2012	us-gaap	Increase Decrease In Deferred Leasing Fees IncreaseDecreaseInDeferredLeasingFees	45099000	USD
CY2013	us-gaap	Increase Decrease In Deferred Leasing Fees IncreaseDecreaseInDeferredLeasingFees	54825000	USD
CY2013	us-gaap	Increase Decrease In Leasing Receivables IncreaseDecreaseInLeasingReceivables	1519000	USD
CY2011	us-gaap	Interest Costs Incurred InterestCostsIncurred	124429000	USD
CY2011	us-gaap	Interest Expense InterestExpense	63373000	USD
CY2012	us-gaap	Interest Expense InterestExpense	69184000	USD
CY2013	us-gaap	Interest Expense InterestExpense	67952000	USD
CY2013	us-gaap	Interest Income Operating InterestIncomeOperating	4600000	USD
CY2012	us-gaap	Increase Decrease In Leasing Receivables IncreaseDecreaseInLeasingReceivables	981000	USD
CY2011	us-gaap	Increase Decrease In Leasing Receivables IncreaseDecreaseInLeasingReceivables	2359000	USD
CY2011	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	41823000	USD
CY2012	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	65697000	USD
CY2013	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	56958000	USD
CY2013	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	6298000	USD
CY2012	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	4069000	USD
CY2011	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	22359000	USD
CY2013	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	-7655000	USD
CY2012	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	9377000	USD
CY2011	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	2183000	USD
CY2011	us-gaap	Increase Decrease In Restricted Cash For Operating Activities IncreaseDecreaseInRestrictedCashForOperatingActivities	465000	USD
CY2012	us-gaap	Increase Decrease In Restricted Cash For Operating Activities IncreaseDecreaseInRestrictedCashForOperatingActivities	261000	USD
CY2013	us-gaap	Increase Decrease In Restricted Cash For Operating Activities IncreaseDecreaseInRestrictedCashForOperatingActivities	-899000	USD
CY2011	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	61056000	USD
CY2012	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	62751000	USD
CY2013	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	60615000	USD
CY2013	us-gaap	Interest Costs Incurred InterestCostsIncurred	128567000	USD
CY2012	us-gaap	Interest Costs Incurred InterestCostsIncurred	131935000	USD
CY2011	us-gaap	Interest Income Operating InterestIncomeOperating	900000	USD
CY2012	us-gaap	Interest Income Operating InterestIncomeOperating	3400000	USD
CY2011	us-gaap	Interest Paid Net InterestPaidNet	52324000	USD
CY2013	us-gaap	Interest Paid Net InterestPaidNet	59857000	USD
CY2012	us-gaap	Interest Paid Net InterestPaidNet	52561000	USD
CY2013Q4	us-gaap	Interest Rate Cash Flow Hedge Derivative At Fair Value Net InterestRateCashFlowHedgeDerivativeAtFairValueNet	-3321000	USD
CY2013Q4	us-gaap	Investment Building And Building Improvements InvestmentBuildingAndBuildingImprovements	5714673000	USD
CY2012Q4	us-gaap	Investment Building And Building Improvements InvestmentBuildingAndBuildingImprovements	4933314000	USD
CY2011	us-gaap	Investment Income Net InvestmentIncomeNet	3051000	USD
CY2012	us-gaap	Investment Income Net InvestmentIncomeNet	12381000	USD
CY2013	us-gaap	Investment Income Net InvestmentIncomeNet	5570000	USD
CY2012Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	0	USD
CY2013Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	0	USD
CY2012Q4	us-gaap	Land Land	522664000	USD
CY2013Q4	us-gaap	Land Land	553388000	USD
CY2012	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	10600000	USD
CY2013	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	11400000	USD
CY2011	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	10200000	USD
CY2013Q4	us-gaap	Liabilities Liabilities	3550823000	USD
CY2012Q4	us-gaap	Liabilities Liabilities	3647058000	USD
CY2012Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	7150116000	USD
CY2013Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	7529764000	USD
CY2013Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation	266000	USD
CY2012Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation	5063000	USD
CY2012Q4	us-gaap	Line Of Credit LineOfCredit	566000000	USD
CY2013Q4	us-gaap	Line Of Credit LineOfCredit	204000000	USD
CY2013Q4	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	1500000000.0	USD
CY2013Q4	us-gaap	Long Term Debt LongTermDebt	3061061000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Five Years OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears	362370000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Four Years OperatingLeasesFutureMinimumPaymentsReceivableInFourYears	408935000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Three Years OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears	444082000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Two Years OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears	466037000	USD
CY2013Q4	us-gaap	Longterm Debt Percentage Bearing Fixed Interest Amount LongtermDebtPercentageBearingFixedInterestAmount	2584808000	USD
CY2013Q4	us-gaap	Longterm Debt Percentage Bearing Variable Interest Amount LongtermDebtPercentageBearingVariableInterestAmount	476253000	USD
CY2012	us-gaap	Loss On Sale Of Investments LossOnSaleOfInvestments	2637000	USD
CY2011	us-gaap	Loss On Sale Of Investments LossOnSaleOfInvestments	1795000	USD
CY2013	us-gaap	Loss On Sale Of Investments LossOnSaleOfInvestments	1480000	USD
CY2012Q4	us-gaap	Minority Interest MinorityInterest	46643000	USD
CY2013Q4	us-gaap	Minority Interest MinorityInterest	47708000	USD
CY2013	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	1812000	USD
CY2011	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	2707000	USD
CY2012	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	913000	USD
CY2012	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	694000	USD
CY2012	us-gaap	Minority Interest Increase From Stock Issuance MinorityInterestIncreaseFromStockIssuance	1875000	USD
CY2011	us-gaap	Minority Interest Increase From Stock Issuance MinorityInterestIncreaseFromStockIssuance	1000000	USD
CY2013	us-gaap	Nature Of Operations NatureOfOperations	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Background</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">As used in this annual report on Form 10-K, references to the “Company,” “Alexandria,” “we,” “our,” and “us” refer to Alexandria Real Estate Equities, Inc. and its subsidiaries.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Alexandria Real Estate Equities, Inc. (NYSE: ARE), a self-administered and self-managed investment-grade REIT, is the largest and leading REIT focused principally on owning, operating, developing, redeveloping, and acquiring high-quality, sustainable real estate for the broad and diverse life science industry.  Alexandria’s client tenants span the life science industry, including renowned academic and medical institutions, multinational pharmaceutical companies, public and private biotechnology entities, U.S. government research agencies, medical device companies, industrial biotech companies, venture capital firms, and life science product and service companies.  For additional information on Alexandria Real Estate Equities, Inc., please visit www.are.com.</font></div><div style="line-height:120%;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Our asset base contains </font><font style="font-family:inherit;font-size:10pt;">180</font><font style="font-family:inherit;font-size:10pt;"> properties approximating </font><font style="font-family:inherit;font-size:10pt;">17.5 million</font><font style="font-family:inherit;font-size:10pt;"> RSF, consisting of the following, as of </font><font style="font-family:inherit;font-size:10pt;">December 31, 2013</font><font style="font-family:inherit;font-size:10pt;">:</font></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="4" rowspan="1"></td></tr><tr><td width="82%" rowspan="1" colspan="1"></td><td width="1%" rowspan="1" colspan="1"></td><td width="16%" rowspan="1" colspan="1"></td><td width="1%" rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">RSF</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Operating properties</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">15,534,238</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Development properties</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">1,826,919</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Redevelopment properties</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">99,873</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Total</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">17,461,030</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr></table></div><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">As of </font><font style="font-family:inherit;font-size:10pt;">December 31, 2013</font><font style="font-family:inherit;font-size:10pt;">, we had </font><font style="font-family:inherit;font-size:10pt;">527</font><font style="font-family:inherit;font-size:10pt;"> leases with a total of </font><font style="font-family:inherit;font-size:10pt;">425</font><font style="font-family:inherit;font-size:10pt;"> client tenants, and </font><font style="font-family:inherit;font-size:10pt;">79</font><font style="font-family:inherit;font-size:10pt;">, or </font><font style="font-family:inherit;font-size:10pt;">44%</font><font style="font-family:inherit;font-size:10pt;">, of our </font><font style="font-family:inherit;font-size:10pt;">180</font><font style="font-family:inherit;font-size:10pt;"> properties were single-tenant properties. Leases in our multi-tenant buildings typically have terms of </font><font style="font-family:inherit;font-size:10pt;">four</font><font style="font-family:inherit;font-size:10pt;"> to </font><font style="font-family:inherit;font-size:10pt;">11</font><font style="font-family:inherit;font-size:10pt;"> years, while the single-tenant building leases typically have initial terms of </font><font style="font-family:inherit;font-size:10pt;">eight</font><font style="font-family:inherit;font-size:10pt;"> to </font><font style="font-family:inherit;font-size:10pt;">17</font><font style="font-family:inherit;font-size:10pt;"> years. As of </font><font style="font-family:inherit;font-size:10pt;">December 31, 2013</font><font style="font-family:inherit;font-size:10pt;">: </font></div><div style="line-height:120%;text-align:left;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:72px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:48px;"><font style="font-family:Wingdings;font-size:10pt;"></font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Investment-grade client tenants represented </font><font style="font-family:inherit;font-size:10pt;">51%</font><font style="font-family:inherit;font-size:10pt;"> of our total ABR;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:72px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:48px;"><font style="font-family:Wingdings;font-size:10pt;"></font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Approximately </font><font style="font-family:inherit;font-size:10pt;">94%</font><font style="font-family:inherit;font-size:10pt;"> of our leases (on an RSF basis) were triple net leases, requiring client tenants to pay substantially all real estate taxes, insurance, utilities, common area, and other operating expenses (including increases thereto) in addition to base rent;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:72px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:48px;"><font style="font-family:Wingdings;font-size:10pt;"></font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Approximately </font><font style="font-family:inherit;font-size:10pt;">95%</font><font style="font-family:inherit;font-size:10pt;"> of our leases (on an RSF basis) contained effective annual rent escalations that were either fixed (generally ranging from </font><font style="font-family:inherit;font-size:10pt;">3%</font><font style="font-family:inherit;font-size:10pt;"> to </font><font style="font-family:inherit;font-size:10pt;">3.5%</font><font style="font-family:inherit;font-size:10pt;">) or indexed based on a consumer price index or other index; and</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:72px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:48px;"><font style="font-family:Wingdings;font-size:10pt;"></font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Approximately </font><font style="font-family:inherit;font-size:10pt;">92%</font><font style="font-family:inherit;font-size:10pt;"> of our leases (on an RSF basis) provided for the recapture of certain capital expenditures (such as HVAC systems maintenance and/or replacement, roof replacement, and parking lot resurfacing) that we believe would typically be borne by the landlord in traditional office leases.</font></div></td></tr></table><div style="line-height:120%;text-align:left;padding-left:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Any references to the number of buildings, square footage, number of leases, occupancy, and any amounts derived from these values in the notes to the consolidated financial statements are unaudited.</font></div></div>
CY2013	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	197570000	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	479156000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	314860000	USD
CY2013	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-591375000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-558100000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-733579000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	305533000	USD
CY2013	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	312727000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	246960000	USD
CY2013	us-gaap	Net Income Loss NetIncomeLoss	135317000	USD
CY2011	us-gaap	Net Income Loss NetIncomeLoss	113341000	USD
CY2012	us-gaap	Net Income Loss NetIncomeLoss	93310000	USD
CY2013	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	4032000	USD
CY2011	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	3975000	USD
CY2012	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	3402000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	8827000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	1324000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	1617000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	1542000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	1468000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	1394000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	1482000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Receivable OperatingLeasesFutureMinimumPaymentsReceivable	4287176000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Receivable Current OperatingLeasesFutureMinimumPaymentsReceivableCurrent	443942000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	11827000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	17340000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	12319000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-25605000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-318000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-28912000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	9640000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-16101000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Sale Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax	-1183000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Sale Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax	-3351000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax	15422000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax	22309000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-11455000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-11371000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Sale Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax	-2561000	USD
CY2011	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	1263000	USD
CY2012	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	1249000	USD
CY2013	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	1191000	USD
CY2012	us-gaap	Payments Of Dividends PaymentsOfDividends	154300000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Receivable Thereafter OperatingLeasesFutureMinimumPaymentsReceivableThereafter	2161810000	USD
CY2011	us-gaap	Operating Leases Income Statement Lease Revenue OperatingLeasesIncomeStatementLeaseRevenue	404815000	USD
CY2013	us-gaap	Operating Leases Income Statement Lease Revenue OperatingLeasesIncomeStatementLeaseRevenue	467764000	USD
CY2012	us-gaap	Operating Leases Income Statement Lease Revenue OperatingLeasesIncomeStatementLeaseRevenue	422793000	USD
CY2012Q4	us-gaap	Other Accounts Payable And Accrued Liabilities OtherAccountsPayableAndAccruedLiabilities	12170000	USD
CY2013Q4	us-gaap	Other Accounts Payable And Accrued Liabilities OtherAccountsPayableAndAccruedLiabilities	10850000	USD
CY2012Q4	us-gaap	Other Assets OtherAssets	90679000	USD
CY2013Q4	us-gaap	Other Assets OtherAssets	134156000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	117000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-2361000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-2323000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax	21457000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-9990000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	1918000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-9630000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	1300000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	990000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	238000	USD
CY2013	us-gaap	Other Real Estate Revenue OtherRealEstateRevenue	13292000	USD
CY2012	us-gaap	Other Real Estate Revenue OtherRealEstateRevenue	18424000	USD
CY2011	us-gaap	Other Real Estate Revenue OtherRealEstateRevenue	5760000	USD
CY2012	us-gaap	Participating Securities Distributed And Undistributed Earnings ParticipatingSecuritiesDistributedAndUndistributedEarnings	1190000	USD
CY2013	us-gaap	Participating Securities Distributed And Undistributed Earnings ParticipatingSecuritiesDistributedAndUndistributedEarnings	1581000	USD
CY2011	us-gaap	Participating Securities Distributed And Undistributed Earnings ParticipatingSecuritiesDistributedAndUndistributedEarnings	1088000	USD
CY2011	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	0	USD
CY2013	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	0	USD
CY2012	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	129638000	USD
CY2011	us-gaap	Payments For Repurchase Of Redeemable Noncontrolling Interest PaymentsForRepurchaseOfRedeemableNoncontrollingInterest	0	USD
CY2012	us-gaap	Payments For Repurchase Of Redeemable Noncontrolling Interest PaymentsForRepurchaseOfRedeemableNoncontrollingInterest	450000	USD
CY2013	us-gaap	Payments For Repurchase Of Redeemable Noncontrolling Interest PaymentsForRepurchaseOfRedeemableNoncontrollingInterest	0	USD
CY2011	us-gaap	Payments Of Dividends PaymentsOfDividends	135200000	USD
CY2013	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	169076000	USD
CY2011	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	106889000	USD
CY2012	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	126498000	USD
CY2011	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	28357000	USD
CY2012	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	27819000	USD
CY2013	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	25885000	USD
CY2013	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	19928000	USD
CY2011	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	27316000	USD
CY2012	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	13225000	USD
CY2012	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	6700000	USD
CY2013	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	17987000	USD
CY2011	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	5256000	USD
CY2011	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	0	USD
CY2012	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	0	USD
CY2013	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	0	USD
CY2012	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	36294000	USD
CY2011	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	27999000	USD
CY2013	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	36078000	USD
CY2013	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	122069000	USD
CY2011	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	305030000	USD
CY2012	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	42171000	USD
CY2011	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	430038000	USD
CY2013	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	593389000	USD
CY2012	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	549030000	USD
CY2013	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	1812000	USD
CY2011	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	2707000	USD
CY2012	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	913000	USD
CY2012	us-gaap	Preferred Stock Accretion Of Redemption Discount PreferredStockAccretionOfRedemptionDiscount	5978000	USD
CY2011	us-gaap	Preferred Stock Accretion Of Redemption Discount PreferredStockAccretionOfRedemptionDiscount	0	USD
CY2013	us-gaap	Preferred Stock Accretion Of Redemption Discount PreferredStockAccretionOfRedemptionDiscount	0	USD
CY2012	us-gaap	Preferred Stock Redemption Premium PreferredStockRedemptionPremium	5978000	USD
CY2013	us-gaap	Preferred Stock Redemption Premium PreferredStockRedemptionPremium	0	USD
CY2011	us-gaap	Preferred Stock Redemption Premium PreferredStockRedemptionPremium	0	USD
CY2013Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	100000000	shares
CY2013Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	15200000	shares
CY2013Q4	us-gaap	Preferred Stock Value PreferredStockValue	130000000	USD
CY2012Q4	us-gaap	Preferred Stock Value PreferredStockValue	130000000	USD
CY2013	us-gaap	Proceeds From Contributions From Affiliates ProceedsFromContributionsFromAffiliates	0	USD
CY2011	us-gaap	Proceeds From Contributions From Affiliates ProceedsFromContributionsFromAffiliates	9000	USD
CY2012	us-gaap	Proceeds From Contributions From Affiliates ProceedsFromContributionsFromAffiliates	0	USD
CY2011	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	451539000	USD
CY2012	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	97890000	USD
CY2013Q2	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	534469000	USD
CY2013	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	534469000	USD
CY2013	us-gaap	Proceeds From Issuance Of Redeemable Preferred Stock ProceedsFromIssuanceOfRedeemablePreferredStock	0	USD
CY2011	us-gaap	Proceeds From Issuance Of Redeemable Preferred Stock ProceedsFromIssuanceOfRedeemablePreferredStock	0	USD
CY2012	us-gaap	Proceeds From Issuance Of Redeemable Preferred Stock ProceedsFromIssuanceOfRedeemablePreferredStock	124868000	USD
CY2011	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	0	USD
CY2012	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	17810000	USD
CY2013	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	28489000	USD
CY2011	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	1350000000	USD
CY2012	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	0	USD
CY2013	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	0	USD
CY2011	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	1406000000	USD
CY2013	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	729000000	USD
CY2012	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	847147000	USD
CY2013	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	0	USD
CY2011	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	1000000	USD
CY2012	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	1875000	USD
CY2013	us-gaap	Proceeds From Repayments Of Restricted Cash Financing Activities ProceedsFromRepaymentsOfRestrictedCashFinancingActivities	2546000	USD
CY2011	us-gaap	Proceeds From Repayments Of Restricted Cash Financing Activities ProceedsFromRepaymentsOfRestrictedCashFinancingActivities	7311000	USD
CY2012	us-gaap	Proceeds From Repayments Of Restricted Cash Financing Activities ProceedsFromRepaymentsOfRestrictedCashFinancingActivities	-7428000	USD
CY2012	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	27043000	USD
CY2011	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	16849000	USD
CY2013	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	16525000	USD
CY2011	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	0	USD
CY2013	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	0	USD
CY2012	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	22250000	USD
CY2012	us-gaap	Proceeds From Sale Of Property Held For Sale ProceedsFromSaleOfPropertyHeldForSale	36179000	USD
CY2013	us-gaap	Proceeds From Sale Of Property Held For Sale ProceedsFromSaleOfPropertyHeldForSale	153968000	USD
CY2011	us-gaap	Proceeds From Sale Of Property Held For Sale ProceedsFromSaleOfPropertyHeldForSale	20078000	USD
CY2013	us-gaap	Proceeds From Sale Of Real Estate ProceedsFromSaleOfRealEstate	128600000	USD
CY2013	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	0	USD
CY2011	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	2117000	USD
CY2012	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	155000	USD
CY2011	us-gaap	Proceeds From Unsecured Notes Payable ProceedsFromUnsecuredNotesPayable	0	USD
CY2013	us-gaap	Proceeds From Unsecured Notes Payable ProceedsFromUnsecuredNotesPayable	498561000	USD
CY2012	us-gaap	Proceeds From Unsecured Notes Payable ProceedsFromUnsecuredNotesPayable	544650000	USD
CY2012	us-gaap	Profit Loss ProfitLoss	105528000	USD
CY2011	us-gaap	Profit Loss ProfitLoss	135393000	USD
CY2013	us-gaap	Profit Loss ProfitLoss	140249000	USD
CY2012Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	875035000	USD
CY2013Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	952106000	USD
CY2011Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	742535000	USD
CY2010Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	616007000	USD
CY2011	us-gaap	Real Estate Accumulated Depreciation Depreciation Expense RealEstateAccumulatedDepreciationDepreciationExpense	126528000	USD
CY2013	us-gaap	Real Estate Accumulated Depreciation Depreciation Expense RealEstateAccumulatedDepreciationDepreciationExpense	149848000	USD
CY2012	us-gaap	Real Estate Accumulated Depreciation Depreciation Expense RealEstateAccumulatedDepreciationDepreciationExpense	157193000	USD
CY2012	us-gaap	Real Estate Accumulated Depreciation Other Deductions RealEstateAccumulatedDepreciationOtherDeductions	17730000	USD
CY2013	us-gaap	Real Estate Accumulated Depreciation Other Deductions RealEstateAccumulatedDepreciationOtherDeductions	0	USD
CY2011	us-gaap	Real Estate Accumulated Depreciation Other Deductions RealEstateAccumulatedDepreciationOtherDeductions	0	USD
CY2012	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	6963000	USD
CY2013	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	72777000	USD
CY2011	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	0	USD
CY2013Q4	us-gaap	Real Estate And Accumulated Depreciation Accumulated Depreciation RealEstateAndAccumulatedDepreciationAccumulatedDepreciation	952106000	USD
CY2012	us-gaap	Repayments Of Convertible Debt RepaymentsOfConvertibleDebt	84801000	USD
CY2012	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	651147000	USD
CY2013	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	1091000000	USD
CY2011	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	1784000000	USD
CY2012	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	26367000	USD
CY2013	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	36219000	USD
CY2011	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	66849000	USD
CY2011	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	500000000	USD
CY2013Q4	us-gaap	Real Estate And Accumulated Depreciation Amount Of Encumbrances RealEstateAndAccumulatedDepreciationAmountOfEncumbrances	708831000	USD
CY2013Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements	5888820000	USD
CY2013Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Land RealEstateAndAccumulatedDepreciationCarryingAmountOfLand	553388000	USD
CY2013Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements RealEstateAndAccumulatedDepreciationCarryingAmountOfLandAndBuildingsAndImprovements	6442208000	USD
CY2013Q4	us-gaap	Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements	2617102000	USD
CY2013Q4	us-gaap	Real Estate And Accumulated Depreciation Initial Cost Of Land RealEstateAndAccumulatedDepreciationInitialCostOfLand	553388000	USD
CY2013	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	182037000	USD
CY2012	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	30807000	USD
CY2011	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	3738000	USD
CY2012Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	5645771000	USD
CY2011Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	5112759000	USD
CY2013Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	6442208000	USD
CY2010Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	4546769000	USD
CY2013Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	952106000	USD
CY2012Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	875035000	USD
CY2012Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	6424578000	USD
CY2013Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	6776914000	USD
CY2013Q4	us-gaap	Real Estate Investments RealEstateInvestments	5490102000	USD
CY2012	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	42901000	USD
CY2013	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	118892000	USD
CY2011	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	183720000	USD
CY2011	us-gaap	Real Estate Other Additions RealEstateOtherAdditions	386008000	USD
CY2012	us-gaap	Real Estate Other Additions RealEstateOtherAdditions	538648000	USD
CY2013	us-gaap	Real Estate Other Additions RealEstateOtherAdditions	859582000	USD
CY2011	us-gaap	Real Estate Other Deductions RealEstateOtherDeductions	0	USD
CY2012	us-gaap	Real Estate Other Deductions RealEstateOtherDeductions	17730000	USD
CY2013	us-gaap	Real Estate Other Deductions RealEstateOtherDeductions	0	USD
CY2013	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	631151000	USD
CY2011	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	536780000	USD
CY2012	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	574497000	USD
CY2012Q1	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	135400000	USD
CY2013Q1	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	150083000	USD
CY2012Q4	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	151254000	USD
CY2012Q3	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	142547000	USD
CY2013Q4	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	168823000	USD
CY2013Q2	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	153930000	USD
CY2012Q2	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	145296000	USD
CY2013Q3	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	158315000	USD
CY2013Q4	us-gaap	Rental Properties RentalProperties	6442208000	USD
CY2012Q4	us-gaap	Rental Properties RentalProperties	5645771000	USD
CY2013	us-gaap	Repayments Of Convertible Debt RepaymentsOfConvertibleDebt	384000	USD
CY2011	us-gaap	Repayments Of Convertible Debt RepaymentsOfConvertibleDebt	221439000	USD
CY2012	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	250000000	USD
CY2013	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	250000000	USD
CY2013Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	27709000	USD
CY2012Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	39947000	USD
CY2012	us-gaap	Straight Line Rent StraightLineRent	28456000	USD
CY2011	us-gaap	Straight Line Rent StraightLineRent	26797000	USD
CY2013	are	Debt Instrument Weighted Average Remaining Period DebtInstrumentWeightedAverageRemainingPeriod	P5Y3M18D
CY2013Q4	are	Debt Instruments Balloon Payment Amount DebtInstrumentsBalloonPaymentAmount	3037202000	USD
CY2013Q4	are	Deferred Costs Leasing And Finance Net DeferredCostsLeasingAndFinanceNet	192658000	USD
CY2012Q4	us-gaap	Secured Debt SecuredDebt	716144000	USD
CY2013Q4	us-gaap	Secured Debt SecuredDebt	708831000	USD
CY2013	us-gaap	Share Based Compensation ShareBasedCompensation	15552000	USD
CY2011	us-gaap	Share Based Compensation ShareBasedCompensation	11755000	USD
CY2012	us-gaap	Share Based Compensation ShareBasedCompensation	14160000	USD
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	1059340	shares
CY2012	us-gaap	Undistributed Earnings Allocated To Participating Securities UndistributedEarningsAllocatedToParticipatingSecurities	1190000	USD
CY2012	are	Dividend Deduction To Eliminate Taxable Income DividendDeductionToEliminateTaxableIncome	148766000	USD
CY2013Q4	are	Effective Portion Of Interest Rate Cash Flow Hedge Derivatives EffectivePortionOfInterestRateCashFlowHedgeDerivatives	250000000	USD
CY2013Q4	are	Effective Portionof Interest Rate Cash Flow Hedgeat Fiscal Year End EffectivePortionofInterestRateCashFlowHedgeatFiscalYearEnd	950000000	USD
CY2013Q4	are	Effective Portionof Interest Rate Cash Flow Hedgein Year Three EffectivePortionofInterestRateCashFlowHedgeinYearThree	500000000	USD
CY2011Q2	us-gaap	Stock Issued During Period Shares Conversion Of Convertible Securities StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities	6250651	shares
CY2013	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	534469000	USD
CY2012	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	97890000	USD
CY2011	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	451539000	USD
CY2013Q4	us-gaap	Stockholders Equity StockholdersEquity	3916789000	USD
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	3441851000	USD
CY2013Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3964497000	USD
CY2012Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3488494000	USD
CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3416859000	USD
CY2010Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2970408000	USD
CY2013	us-gaap	Straight Line Rent StraightLineRent	27935000	USD
CY2013	us-gaap	Subsidiary Or Equity Method Investee Cumulative Percentage Ownership After All Transactions SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions	1
CY2012Q4	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	14564000	USD
CY2013Q4	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	14444000	USD
CY2011Q4	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	16034000	USD
CY2010Q4	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	15920000	USD
CY2012	us-gaap	Temporary Equity Elimination As Partof Reorganization TemporaryEquityEliminationAsPartofReorganization	1144000	USD
CY2013	us-gaap	Temporary Equity Net Income TemporaryEquityNetIncome	1071000	USD
CY2011	us-gaap	Temporary Equity Net Income TemporaryEquityNetIncome	1318000	USD
CY2012	us-gaap	Temporary Equity Net Income TemporaryEquityNetIncome	973000	USD
CY2013Q4	us-gaap	Temporary Equity Redemption Value TemporaryEquityRedemptionValue	14444000	USD
CY2012Q4	us-gaap	Temporary Equity Redemption Value TemporaryEquityRedemptionValue	14564000	USD
CY2012	us-gaap	Tenant Reimbursements TenantReimbursements	133280000	USD
CY2011	us-gaap	Tenant Reimbursements TenantReimbursements	126205000	USD
CY2013	us-gaap	Tenant Reimbursements TenantReimbursements	150095000	USD
CY2013	us-gaap	Undistributed Earnings Allocated To Participating Securities UndistributedEarningsAllocatedToParticipatingSecurities	1581000	USD
CY2011	us-gaap	Undistributed Earnings Allocated To Participating Securities UndistributedEarningsAllocatedToParticipatingSecurities	1088000	USD
CY2013	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;text-decoration:underline;">Use of estimates</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">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.</font></div></div>
CY2013	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	68038000	shares
CY2011	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	59078000	shares
CY2012	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	62160000	shares
CY2013Q4	are	Accounts Payable And Accrued Liabilities And Security Deposit Liability Current And Noncurrent AccountsPayableAndAccruedLiabilitiesAndSecurityDepositLiabilityCurrentAndNoncurrent	435342000	USD
CY2012Q4	are	Accounts Payable And Accrued Liabilities And Security Deposit Liability Current And Noncurrent AccountsPayableAndAccruedLiabilitiesAndSecurityDepositLiabilityCurrentAndNoncurrent	423708000	USD
CY2013	are	Allowance For Estimated Losses Related To Tenant Rent AllowanceForEstimatedLossesRelatedToTenantRent	0	USD
CY2012	are	Allowance For Estimated Losses Related To Tenant Rent AllowanceForEstimatedLossesRelatedToTenantRent	0	USD
CY2013	are	Amortization Of Above Below Market Leases AmortizationOfAboveBelowMarketLeases	3316000	USD
CY2012	are	Amortization Of Above Below Market Leases AmortizationOfAboveBelowMarketLeases	3200000	USD
CY2011	are	Amortization Of Above Below Market Leases AmortizationOfAboveBelowMarketLeases	9332000	USD
CY2013	are	Concentration Risk Fdic Insurance Coverage ConcentrationRiskFDICInsuranceCoverage	250000	USD
CY2013Q4	are	Cost Method Investment Ownership Percentage CostMethodInvestmentOwnershipPercentage	0.10
CY2012Q4	are	Cost Method Investment Ownership Percentage CostMethodInvestmentOwnershipPercentage	0.10
CY2013Q4	are	Debt Instrument Debt Interest Rate Basis For Effective Rate DebtInstrumentDebtInterestRateBasisForEffectiveRate	0.0376
CY2013Q4	are	Debt Instrument Percentage Of Outstanding Balance DebtInstrumentPercentageOfOutstandingBalance	1.000
CY2012Q4	are	Deferred Costs Leasing And Finance Net DeferredCostsLeasingAndFinanceNet	160048000	USD
CY2012Q4	are	Deferred Rent Liability DeferredRentLiability	34414000	USD
CY2013Q4	are	Deferred Rent Liability DeferredRentLiability	35134000	USD
CY2013	are	Depreciation And Amortization Cash Flow Impact DepreciationAndAmortizationCashFlowImpact	190778000	USD
CY2012	are	Depreciation And Amortization Cash Flow Impact DepreciationAndAmortizationCashFlowImpact	192005000	USD
CY2011	are	Depreciation And Amortization Cash Flow Impact DepreciationAndAmortizationCashFlowImpact	158026000	USD
CY2012	are	Discontinued Operations Depreciation Expense DiscontinuedOperationsDepreciationExpense	6318000	USD
CY2011	are	Discontinued Operations Depreciation Expense DiscontinuedOperationsDepreciationExpense	7120000	USD
CY2013	are	Discontinued Operations Depreciation Expense DiscontinuedOperationsDepreciationExpense	1655000	USD
CY2012	are	Disposal Group Including Discontinued Operation Impairmentof Real Estate DisposalGroupIncludingDiscontinuedOperationImpairmentofRealEstate	11400000	USD
CY2011	are	Disposal Group Including Discontinued Operation Impairmentof Real Estate DisposalGroupIncludingDiscontinuedOperationImpairmentofRealEstate	994000	USD
CY2013	are	Disposal Group Including Discontinued Operation Impairmentof Real Estate DisposalGroupIncludingDiscontinuedOperationImpairmentofRealEstate	0	USD
CY2013	are	Disposal Group Including Discontinued Operation Operating Properties Held For Sale Number DisposalGroupIncludingDiscontinuedOperationOperatingPropertiesHeldForSaleNumber	4	property
CY2011	are	Disposal Group Including Discontinued Operation Properties Sold Number DisposalGroupIncludingDiscontinuedOperationPropertiesSoldNumber	14	property
CY2011	are	Dividend Deduction To Eliminate Taxable Income DividendDeductionToEliminateTaxableIncome	132160000	USD
CY2013Q4	are	Effective Portionof Interest Rate Cash Flow Hedgein Year Two EffectivePortionofInterestRateCashFlowHedgeinYearTwo	500000000	USD
CY2013Q4	are	Effective Portionof Interest Rate Cash Flow Hedgeinthe Next Twelve Months EffectivePortionofInterestRateCashFlowHedgeintheNextTwelveMonths	750000000	USD
CY2011	are	Equity In Earnings Of Affiliates EquityInEarningsOfAffiliates	0	USD
CY2012	are	Equity In Earnings Of Affiliates EquityInEarningsOfAffiliates	0	USD
CY2013	are	Equity In Earnings Of Affiliates EquityInEarningsOfAffiliates	0	USD
CY2012Q4	are	Equity Investments EquityInvestments	115048000	USD
CY2013Q4	are	Equity Investments EquityInvestments	140288000	USD
CY2013	are	Equity Method Investment Gross Realized Gains EquityMethodInvestmentGrossRealizedGains	7050000	USD
CY2012	are	Equity Method Investment Gross Realized Gains EquityMethodInvestmentGrossRealizedGains	15018000	USD
CY2011	are	Equity Method Investment Gross Realized Gains EquityMethodInvestmentGrossRealizedGains	4846000	USD
CY2011	are	Equity Method Investment Gross Realized Losses EquityMethodInvestmentGrossRealizedLosses	1795000	USD
CY2012	are	Equity Method Investment Gross Realized Losses EquityMethodInvestmentGrossRealizedLosses	2637000	USD
CY2013	are	Equity Method Investment Gross Realized Losses EquityMethodInvestmentGrossRealizedLosses	1480000	USD
CY2013Q4	are	Fixed Interest Rate Debt As Percentage Of Total Outstanding Balance FixedInterestRateDebtAsPercentageOfTotalOutstandingBalance	0.84
CY2013Q4	are	Ground And Operating Lease Obligation Due GroundAndOperatingLeaseObligationDue	696274000	USD
CY2013Q4	are	Ground And Operating Lease Obligation Due After Fifth Year GroundAndOperatingLeaseObligationDueAfterFifthYear	636771000	USD
CY2013Q4	are	Ground And Operating Lease Obligation Due In Fifth Year GroundAndOperatingLeaseObligationDueInFifthYear	12279000	USD
CY2013Q4	are	Ground And Operating Lease Obligation Due In Fourth Year GroundAndOperatingLeaseObligationDueInFourthYear	12114000	USD
CY2013Q4	are	Ground And Operating Lease Obligation Due In Second Year GroundAndOperatingLeaseObligationDueInSecondYear	11294000	USD
CY2013Q4	are	Ground And Operating Lease Obligation Due In Third Year GroundAndOperatingLeaseObligationDueInThirdYear	11972000	USD
CY2013Q4	are	Ground And Operating Lease Obligation Due Within One Year GroundAndOperatingLeaseObligationDueWithinOneYear	11844000	USD
CY2013Q4	are	Ground Lease Obligation Due GroundLeaseObligationDue	687447000	USD
CY2013Q4	are	Ground Lease Obligation Due After Fifth Year GroundLeaseObligationDueAfterFifthYear	635289000	USD
CY2013Q4	are	Ground Lease Obligation Due In Fifth Year GroundLeaseObligationDueInFifthYear	10662000	USD
CY2013Q4	are	Ground Lease Obligation Due In Fourth Year GroundLeaseObligationDueInFourthYear	10572000	USD
CY2013Q4	are	Ground Lease Obligation Due In Second Year GroundLeaseObligationDueInSecondYear	9900000	USD
CY2013Q4	are	Ground Lease Obligation Due In Third Year GroundLeaseObligationDueInThirdYear	10504000	USD
CY2013Q4	are	Ground Lease Obligation Due Within One Year GroundLeaseObligationDueWithinOneYear	10520000	USD
CY2013Q4	are	Ground Lease Related To Operating Property Net Book Value GroundLeaseRelatedToOperatingPropertyNetBookValue	8900000	USD
CY2011	are	Impairmentof Land Parcel ImpairmentofLandParcel	0	USD
CY2013	are	Impairmentof Land Parcel ImpairmentofLandParcel	0	USD
CY2012	are	Impairmentof Land Parcel ImpairmentofLandParcel	2050000	USD
CY2013Q4	are	Improvements Others ImprovementsOthers	174147000	USD
CY2012Q4	are	Improvements Others ImprovementsOthers	189793000	USD
CY2011	are	Income Loss From Continuing Operations Before Income Taxes Minority Interest Equity In Earnings Of Affiliates And Gain Loss On Early Extinguishment Of Debt IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestEquityInEarningsOfAffiliatesAndGainLossOnEarlyExtinguishmentOfDebt	117270000	USD
CY2012	are	Income Loss From Continuing Operations Before Income Taxes Minority Interest Equity In Earnings Of Affiliates And Gain Loss On Early Extinguishment Of Debt IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestEquityInEarningsOfAffiliatesAndGainLossOnEarlyExtinguishmentOfDebt	94848000	USD
CY2013	are	Income Loss From Continuing Operations Before Income Taxes Minority Interest Equity In Earnings Of Affiliates And Gain Loss On Early Extinguishment Of Debt IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestEquityInEarningsOfAffiliatesAndGainLossOnEarlyExtinguishmentOfDebt	134525000	USD
CY2013	are	Income Lossfrom Discontinued Operations Netof Tax Before Impairment Loss Including Portion Attributableto Noncontrolling Interest IncomeLossfromDiscontinuedOperationsNetofTaxBeforeImpairmentLossIncludingPortionAttributabletoNoncontrollingInterest	900000	USD
CY2012	are	Income Lossfrom Discontinued Operations Netof Tax Before Impairment Loss Including Portion Attributableto Noncontrolling Interest IncomeLossfromDiscontinuedOperationsNetofTaxBeforeImpairmentLossIncludingPortionAttributabletoNoncontrollingInterest	20216000	USD
CY2011	are	Income Lossfrom Discontinued Operations Netof Tax Before Impairment Loss Including Portion Attributableto Noncontrolling Interest IncomeLossfromDiscontinuedOperationsNetofTaxBeforeImpairmentLossIncludingPortionAttributabletoNoncontrollingInterest	19071000	USD
CY2012	are	Income Tax Reconciliation Gains Losses From Capital Transaction IncomeTaxReconciliationGainsLossesFromCapitalTransaction	0	USD
CY2011	are	Income Tax Reconciliation Gains Losses From Capital Transaction IncomeTaxReconciliationGainsLossesFromCapitalTransaction	283000	USD
CY2012	are	Income Tax Reconciliation Nondeductible Expense Interest Expense IncomeTaxReconciliationNondeductibleExpenseInterestExpense	8068000	USD
CY2011	are	Income Tax Reconciliation Nondeductible Expense Interest Expense IncomeTaxReconciliationNondeductibleExpenseInterestExpense	2299000	USD
CY2011	are	Income Tax Reconciliation Rental Revenue Recognition IncomeTaxReconciliationRentalRevenueRecognition	-5886000	USD
CY2012	are	Income Tax Reconciliation Rental Revenue Recognition IncomeTaxReconciliationRentalRevenueRecognition	11607000	USD
CY2011	are	Increase Decrease In Due To Due From Affiliates IncreaseDecreaseInDueToDueFromAffiliates	0	USD
CY2012	are	Increase Decrease In Due To Due From Affiliates IncreaseDecreaseInDueToDueFromAffiliates	0	USD
CY2013	are	Increase Decrease In Due To Due From Affiliates IncreaseDecreaseInDueToDueFromAffiliates	0	USD
CY2013Q4	are	Investment Grade Client Tenants As Percentage Of Total Annualized Base Rent InvestmentGradeClientTenantsAsPercentageOfTotalAnnualizedBaseRent	0.51
CY2012	are	Other Comprehensive Income Loss Netof Tax Including Portion Attributableto Nonredeemable Noncontrolling Interest OtherComprehensiveIncomeLossNetofTaxIncludingPortionAttributabletoNonredeemableNoncontrollingInterest	9690000	USD
CY2013	are	Percent Of Taxable Income Generally Distributed As Dividend PercentOfTaxableIncomeGenerallyDistributedAsDividend	1
CY2013	are	Maximum Expected Period Of Sale Of Property MaximumExpectedPeriodOfSaleOfProperty	P1Y
CY2013	are	Minimum Percentage Of Taxable Income To Be Distributed MinimumPercentageOfTaxableIncomeToBeDistributed	1
CY2012Q4	are	Net Assets Of Disposal Group Including Discontinued Operation NetAssetsOfDisposalGroupIncludingDiscontinuedOperation	129762000	USD
CY2013Q4	are	Net Assets Of Disposal Group Including Discontinued Operation NetAssetsOfDisposalGroupIncludingDiscontinuedOperation	7481000	USD
CY2013	are	Net Income Loss Attributable To Common Stockholders NetIncomeLossAttributableToCommonStockholders	108751000	USD
CY2012	are	Net Income Loss Attributable To Common Stockholders NetIncomeLossAttributableToCommonStockholders	67630000	USD
CY2011	are	Net Income Loss Attributable To Common Stockholders NetIncomeLossAttributableToCommonStockholders	101973000	USD
CY2013Q2	are	Net Income Loss Attributable To Common Stockholders NetIncomeLossAttributableToCommonStockholders	25483000	USD
CY2013Q4	are	Net Income Loss Attributable To Common Stockholders NetIncomeLossAttributableToCommonStockholders	36247000	USD
CY2013Q3	are	Net Income Loss Attributable To Common Stockholders NetIncomeLossAttributableToCommonStockholders	24579000	USD
CY2013Q1	are	Net Income Loss Attributable To Common Stockholders NetIncomeLossAttributableToCommonStockholders	22442000	USD
CY2012Q2	are	Net Income Loss Attributable To Common Stockholders NetIncomeLossAttributableToCommonStockholders	17616000	USD
CY2012Q4	are	Net Income Loss Attributable To Common Stockholders NetIncomeLossAttributableToCommonStockholders	21000000	USD
CY2012Q1	are	Net Income Loss Attributable To Common Stockholders NetIncomeLossAttributableToCommonStockholders	18368000	USD
CY2012Q3	are	Net Income Loss Attributable To Common Stockholders NetIncomeLossAttributableToCommonStockholders	10646000	USD
CY2012	are	Net Income Loss Available To Common Stockholders NetIncomeLossAvailableToCommonStockholders	58814000	USD
CY2011	are	Net Income Loss Available To Common Stockholders NetIncomeLossAvailableToCommonStockholders	83896000	USD
CY2013	are	Net Income Loss Available To Common Stockholders NetIncomeLossAvailableToCommonStockholders	107851000	USD
CY2013	are	Net Income Loss Including Portion Attributableto Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributabletoNonredeemableNoncontrollingInterest	139178000	USD
CY2012	are	Net Income Loss Including Portion Attributableto Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributabletoNonredeemableNoncontrollingInterest	104555000	USD
CY2011	are	Net Income Loss Including Portion Attributableto Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributabletoNonredeemableNoncontrollingInterest	134075000	USD
CY2011	are	Net Taxable Income Loss NetTaxableIncomeLoss	0	USD
CY2012	are	Net Taxable Income Loss NetTaxableIncomeLoss	0	USD
CY2011	are	Note Receivable From Sale Of Real Estate NoteReceivableFromSaleOfRealEstate	0	USD
CY2013	are	Note Receivable From Sale Of Real Estate NoteReceivableFromSaleOfRealEstate	38820000	USD
CY2012	are	Note Receivable From Sale Of Real Estate NoteReceivableFromSaleOfRealEstate	6125000	USD
CY2013	are	Number Of Ground Lease Related To Operating Property Expiring In2036 NumberOfGroundLeaseRelatedToOperatingPropertyExpiringIn2036	1	Lease
CY2013	are	Number Of Land Development Parcels Under Ground Leased NumberOfLandDevelopmentParcelsUnderGroundLeased	2	Parcel
CY2013	are	Number Of Leases Held NumberOfLeasesHeld	527	Lease
CY2013	are	Number Of Properties Leased NumberOfPropertiesLeased	180	property
CY2013	are	Number Of Properties Under Ground Leased NumberOfPropertiesUnderGroundLeased	29	property
CY2013	are	Number Of Real Estate Properties Sold NumberOfRealEstatePropertiesSold	7	property
CY2013Q4	are	Number Of Real Estate Property Construction Or Preconstruction Activities NumberOfRealEstatePropertyConstructionOrPreconstructionActivities	0	Transaction
CY2013	are	Number Of Single Tenant Properties NumberOfSingleTenantProperties	79	Tenant
CY2013	are	Number Of Tenants NumberOfTenants	425	Tenant
CY2013	are	Operating Lease Obligation Remaining Lease Term OperatingLeaseObligationRemainingLeaseTerm	P6Y
CY2013	are	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-25610000	USD
CY2013	are	Other Comprehensive Income Loss Netof Tax Including Portion Attributableto Nonredeemable Noncontrolling Interest OtherComprehensiveIncomeLossNetofTaxIncludingPortionAttributabletoNonredeemableNoncontrollingInterest	-11455000	USD
CY2011	are	Other Comprehensive Income Loss Netof Tax Including Portion Attributableto Nonredeemable Noncontrolling Interest OtherComprehensiveIncomeLossNetofTaxIncludingPortionAttributabletoNonredeemableNoncontrollingInterest	-16151000	USD
CY2013	are	Percentage Of Effective Portion Of Interest Rate Hedge Agreements PercentageOfEffectivePortionOfInterestRateHedgeAgreements	1.00
CY2011	are	Percentage Of Effective Portion Of Interest Rate Hedge Agreements PercentageOfEffectivePortionOfInterestRateHedgeAgreements	1.00
CY2012	are	Percentage Of Effective Portion Of Interest Rate Hedge Agreements PercentageOfEffectivePortionOfInterestRateHedgeAgreements	1.00
CY2013Q4	are	Percentage Of Leases Containing Effective Annual Rent Escalation PercentageOfLeasesContainingEffectiveAnnualRentEscalation	0.95
CY2013Q4	are	Percentage Of Leases Providing For Recapture Of Capital Expenditures PercentageOfLeasesProvidingForRecaptureOfCapitalExpenditures	0.92
CY2013	are	Preferred Stock Shares Additional Shares Authorized PreferredStockSharesAdditionalSharesAuthorized	200000000	shares
CY2013Q4	are	Preferred Stock Shares Additional Shares Authorized Issued And Outstanding PreferredStockSharesAdditionalSharesAuthorizedIssuedAndOutstanding	0	shares
CY2013Q4	are	Prepaid Rent And Tenant Security Deposits PrepaidRentAndTenantSecurityDeposits	188241000	USD
CY2012Q4	are	Prepaid Rent And Tenant Security Deposits PrepaidRentAndTenantSecurityDeposits	143878000	USD
CY2013Q4	are	Principal Amortization Of Unsecured Debt PrincipalAmortizationOfUnsecuredDebt	23859000	USD
CY2013Q4	are	Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Of Building And Improvements RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionOfBuildingAndImprovements	3271718000	USD
CY2013	are	Real Estate Write Off RealEstateWriteOff	0	USD
CY2012	are	Real Estate Write Off RealEstateWriteOff	17730000	USD
CY2011	are	Real Estate Write Off RealEstateWriteOff	0	USD
CY2013	are	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-14239000	USD
CY2013Q4	are	Remaining Aggregate Costs Under Contracts RemainingAggregateCostsUnderContracts	272000000	USD
CY2013	are	Rentable Square Feet Properties Number RentableSquareFeetPropertiesNumber	180	property
CY2013Q4	are	Rentable Square Footage Of Real Estate Property Operating Properties RentableSquareFootageOfRealEstatePropertyOperatingProperties	15534238	sqft
CY2013	dei	Entity Central Index Key EntityCentralIndexKey	0001035443
CY2014Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	71641272	shares
CY2013	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2013Q4	are	Rental Properties Net RentalPropertiesNet	5490102000	USD
CY2012Q4	are	Rental Properties Net RentalPropertiesNet	4770736000	USD
CY2013	are	Temporary Equity Other Comprehensive Income Loss Netof Tax TemporaryEquityOtherComprehensiveIncomeLossNetofTax	0	USD
CY2011	are	Temporary Equity Other Comprehensive Income Loss Netof Tax TemporaryEquityOtherComprehensiveIncomeLossNetofTax	50000	USD
CY2012	are	Temporary Equity Other Comprehensive Income Loss Netof Tax TemporaryEquityOtherComprehensiveIncomeLossNetofTax	-50000	USD
CY2013Q4	are	Single Tenant Properties As Percentage Of Total Properties SingleTenantPropertiesAsPercentageOfTotalProperties	0.44
CY2013Q4	are	Square Footage Of Real Estate Property Active Redevelopment SquareFootageOfRealEstatePropertyActiveRedevelopment	99873	sqft
CY2013Q4	are	Square Footage Of Real Estate Property Ground Up Development SquareFootageOfRealEstatePropertyGroundUpDevelopment	1826919	sqft
CY2012	are	Taxable Income Before Dividend Deduction TaxableIncomeBeforeDividendDeduction	148766000	USD
CY2011	are	Taxable Income Before Dividend Deduction TaxableIncomeBeforeDividendDeduction	132160000	USD
CY2013	are	Temporary Equity Decreasefrom Distributionsto Noncontrolling Interest TemporaryEquityDecreasefromDistributionstoNoncontrollingInterest	1191000	USD
CY2011	are	Temporary Equity Decreasefrom Distributionsto Noncontrolling Interest TemporaryEquityDecreasefromDistributionstoNoncontrollingInterest	1263000	USD
CY2012	are	Temporary Equity Decreasefrom Distributionsto Noncontrolling Interest TemporaryEquityDecreasefromDistributionstoNoncontrollingInterest	1249000	USD
CY2011	are	Temporary Equity Increasefrom Contributionby Noncontrolling Interest TemporaryEquityIncreasefromContributionbyNoncontrollingInterest	9000	USD
CY2013Q4	are	Total Rentable Square Footage Of Real Estate Property TotalRentableSquareFootageOfRealEstateProperty	17461030	sqft
CY2011	are	Transfers Due To Due From Parent Entity TransfersDueToDueFromParentEntity	0	USD
CY2012	are	Transfers Due To Due From Parent Entity TransfersDueToDueFromParentEntity	0	USD
CY2013	are	Transfers Due To Due From Parent Entity TransfersDueToDueFromParentEntity	0	USD
CY2013Q4	are	Triple Net Leases Percentage TripleNetLeasesPercentage	0.94
CY2012Q4	are	Unsecured Bank Term Loans UnsecuredBankTermLoans	1350000000	USD
CY2013Q4	are	Unsecured Bank Term Loans UnsecuredBankTermLoans	1100000000	USD
CY2012Q4	are	Unsecured Senior Notes Payable UnsecuredSeniorNotesPayable	549805000	USD
CY2013Q4	are	Unsecured Senior Notes Payable UnsecuredSeniorNotesPayable	1048230000	USD
CY2013Q4	are	Variable Interest Rate Debt As Percentage Of Total Outstanding Balance VariableInterestRateDebtAsPercentageOfTotalOutstandingBalance	0.16
CY2013	dei	Amendment Flag AmendmentFlag	false
CY2013	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2013	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2013	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2013
CY2013	dei	Document Period End Date DocumentPeriodEndDate	2013-12-31
CY2013	dei	Document Type DocumentType	10-K
CY2013	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2013Q2	dei	Entity Public Float EntityPublicFloat	4600000000	USD
CY2013	dei	Entity Registrant Name EntityRegistrantName	ALEXANDRIA REAL ESTATE EQUITIES INC
CY2013	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2013	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes

Files In Submission

Name	View Source	Status
0001035443-14-000013-index-headers.html	Edgar Link	pending
0001035443-14-000013-index.html	Edgar Link	pending
0001035443-14-000013.txt	Edgar Link	pending
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ALEXANDRIA REAL ESTATE EQUITIES, INC. Stock $are

2014 Q1 Form 10-K Financial Statement

#000103544314000013 Filed on March 03, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

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

2014 Q1 Form 10-K Financial Statement

#000103544314000013 Filed on March 03, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

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