$KRC
Kilroy Realty Corp Stock $krc

$krc Overview Financials Valuation SEC Filings Company Website

2014 Q4 Form 10-K Financial Statement

#000102599615000075 Filed on February 10, 2015

Income Statement

Concept	2014 Q4	2014 Q3	2014 Q2
Revenue	$141.8M	$129.0M	$127.2M
YoY Change	19.53%	13.63%	9.77%
Cost Of Revenue	$38.30M	$37.60M	$36.70M
YoY Change	8.5%	5.92%	11.55%
Gross Profit	$103.5M	$91.40M	$90.50M
YoY Change	24.25%	17.03%	11.59%
Gross Profit Margin	73.01%	70.84%	71.16%
Selling, General & Admin	$12.30M	$11.20M	$11.90M
YoY Change	21.78%	8.74%	20.2%
% of Gross Profit	11.88%	12.25%	13.15%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$53.90M	$50.60M	$50.80M
YoY Change	5.27%	0.0%	3.04%
% of Gross Profit	52.08%	55.36%	56.13%
Operating Expenses	$66.10M	$61.20M	$100.6M
YoY Change	9.44%	-35.47%	10.6%
Operating Profit	$37.40M	$30.20M	-$10.13M
YoY Change	63.32%	-280.47%	2.49%
Interest Expense	-$17.70M	-$16.60M	$16.02M
YoY Change	2.31%	-188.05%	-17.57%
% of Operating Profit	-47.33%	-54.97%
Other Income/Expense, Net			-$15.60M
YoY Change			-19.64%
Pretax Income	$19.40M	$13.20M	$15.90M
YoY Change	288.0%	312.5%	144.62%
Income Tax
% Of Pretax Income
Net Earnings	$30.85M	$18.98M	$30.54M
YoY Change	36.34%	113.38%	207.06%
Net Earnings / Revenue	21.76%	14.71%	24.01%
Basic Earnings Per Share	$0.32	$0.18	$0.33
Diluted Earnings Per Share	$0.32	$0.18	$0.32
COMMON SHARES
Basic Shares Outstanding	83.96M shares	83.18M shares	82.28M shares
Diluted Shares Outstanding			84.60M shares

Balance Sheet

Concept	2014 Q4	2014 Q3	2014 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$24.00M	$200.0M	$25.00M
YoY Change	-31.43%	1.52%	-76.85%
Cash & Equivalents	$23.78M	$200.0M	$25.00M
Short-Term Investments
Other Short-Term Assets	$20.00M	$20.00M	$22.00M
YoY Change	25.0%	17.65%	37.5%
Inventory
Prepaid Expenses
Receivables	$164.0M	$146.0M	$145.0M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$208.0M	$366.0M	$192.0M
YoY Change	10.05%	5.48%	-25.87%
LONG-TERM ASSETS
Property, Plant & Equipment	$5.110B	$4.838B	$4.781B
YoY Change	14.93%	13.38%	11.68%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$12.00M	$12.00M	$12.00M
YoY Change	20.0%	33.33%	50.0%
Other Assets	$304.0M	$270.0M	$289.0M
YoY Change	-34.76%	-41.94%	27.31%
Total Long-Term Assets	$5.426B	$5.121B	$5.082B
YoY Change	10.23%	7.99%	12.52%
TOTAL ASSETS
Total Short-Term Assets	$208.0M	$366.0M	$192.0M
Total Long-Term Assets	$5.426B	$5.121B	$5.082B
Total Assets	$5.634B	$5.487B	$5.274B
YoY Change	10.23%	7.81%	10.44%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$226.0M	$244.0M	$216.0M
YoY Change	14.14%	16.19%	16.76%
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	$259.0M	$276.0M	$248.0M
YoY Change	13.1%	14.52%	15.89%
LONG-TERM LIABILITIES
Long-Term Debt	$2.469B	$2.429B	$2.245B
YoY Change	11.97%	12.35%	3.65%
Other Long-Term Liabilities	$182.0M	$163.0M	$158.0M
YoY Change	13.75%	1.24%	0.64%
Total Long-Term Liabilities	$2.651B	$2.592B	$2.403B
YoY Change	12.09%	11.58%	3.44%
TOTAL LIABILITIES
Total Short-Term Liabilities	$259.0M	$276.0M	$248.0M
Total Long-Term Liabilities	$2.651B	$2.592B	$2.403B
Total Liabilities	$2.910B	$2.924B	$2.650B
YoY Change	12.14%	13.99%	4.47%
SHAREHOLDERS EQUITY
Retained Earnings
YoY Change
Common Stock	$863.0K
YoY Change	4.99%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$2.666B	$2.564B	$2.567B
YoY Change
Total Liabilities & Shareholders Equity	$5.634B	$5.487B	$5.274B
YoY Change	10.23%	7.81%	10.43%

Cashflow Statement

Concept	2014 Q4	2014 Q3	2014 Q2
OPERATING ACTIVITIES
Net Income	$30.85M	$18.98M	$30.54M
YoY Change	36.34%	113.38%	207.06%
Depreciation, Depletion And Amortization	$53.90M	$50.60M	$50.80M
YoY Change	5.27%	0.0%	3.04%
Cash From Operating Activities	$48.00M	$90.40M	$61.80M
YoY Change	-11.6%	14.0%	22.38%
INVESTING ACTIVITIES
Capital Expenditures	-$311.0M	-$158.9M	-$219.9M
YoY Change	33.25%	-38.48%	177.65%
Acquisitions
YoY Change
Other Investing Activities	-$1.500M	$91.90M	$800.0K
YoY Change	-117.86%	-3503.7%	-94.7%
Cash From Investing Activities	-$312.4M	-$67.10M	-$219.2M
YoY Change	38.97%	-74.3%	242.5%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	87.90M	152.5M	86.40M
YoY Change	898.86%	-43.75%	-704.2%
NET CHANGE
Cash From Operating Activities	48.00M	90.40M	61.80M
Cash From Investing Activities	-312.4M	-67.10M	-219.2M
Cash From Financing Activities	87.90M	152.5M	86.40M
Net Change In Cash	-176.5M	175.8M	-71.00M
YoY Change	9.15%	96.86%	155.4%
FREE CASH FLOW
Cash From Operating Activities	$48.00M	$90.40M	$61.80M
Capital Expenditures	-$311.0M	-$158.9M	-$219.9M
Free Cash Flow	$359.0M	$249.3M	$281.7M
YoY Change	24.78%	-26.16%	117.19%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2014Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	2635900000	USD
CY2013Q4	us-gaap	Accumulated Distributions In Excess Of Net Income AccumulatedDistributionsInExcessOfNetIncome	210896000	USD
CY2014Q4	us-gaap	Accumulated Distributions In Excess Of Net Income AccumulatedDistributionsInExcessOfNetIncome	162964000	USD
CY2013Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	2478975000	USD
CY2014Q4	us-gaap	Minority Interest Ownership Percentage By Noncontrolling Owners MinorityInterestOwnershipPercentageByNoncontrollingOwners	0.020
CY2013Q4	us-gaap	Minority Interest Ownership Percentage By Parent MinorityInterestOwnershipPercentageByParent	0.978
CY2013Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	49780000	USD
CY2014	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	202108000	USD
CY2014Q4	us-gaap	Investment Building And Building Improvements InvestmentBuildingAndBuildingImprovements	4059639000	USD
CY2013Q4	us-gaap	Minority Interest Ownership Percentage By Noncontrolling Owners MinorityInterestOwnershipPercentageByNoncontrollingOwners	0.022
CY2012Q4	krc	Capital Gains Federal Statutory Tax Rate Percent CapitalGainsFederalStatutoryTaxRatePercent	0.15
CY2012	krc	Common Stockholders And Unitholders Dividends And Distributions Declared But Not Paid CommonStockholdersAndUnitholdersDividendsAndDistributionsDeclaredButNotPaid	26863000	USD
CY2014Q2	dei	Entity Public Float EntityPublicFloat	5152002640	USD
CY2013Q4	krc	Acquisition Related Intangible Liabilities Net AcquisitionRelatedIntangibleLiabilitiesNet	49776000	USD
CY2014Q4	krc	Acquisition Related Intangible Liabilities Net AcquisitionRelatedIntangibleLiabilitiesNet	43427000	USD
CY2014	krc	Annual Ground Lease Rental Obligations Maximum AnnualGroundLeaseRentalObligationsMaximum	1000000	USD
CY2013Q4	krc	Capital Gains Federal Statutory Tax Rate Percent CapitalGainsFederalStatutoryTaxRatePercent	0.20
CY2014Q4	krc	Capital Gains Federal Statutory Tax Rate Percent CapitalGainsFederalStatutoryTaxRatePercent	0.20
CY2014	krc	Common Stockholders And Unitholders Dividends And Distributions Declared But Not Paid CommonStockholdersAndUnitholdersDividendsAndDistributionsDeclaredButNotPaid	31243000	USD
CY2014	krc	Company Annual Taxable Income Distribution CompanyAnnualTaxableIncomeDistribution	1.0
CY2014	krc	Debt Instrument Covenant Terms Dividend Payment As Percentage Of Funds From Operations Maximum DebtInstrumentCovenantTermsDividendPaymentAsPercentageOfFundsFromOperationsMaximum	0.95
CY2007	krc	Deferred Compensation Arrangement With Individual Employer Contribution Percent DeferredCompensationArrangementWithIndividualEmployerContributionPercent	0.1
CY2007	krc	Deferred Compensation Directors Fees And Employee Bonuses Percent DeferredCompensationDirectorsFeesAndEmployeeBonusesPercent	1
CY2007	krc	Deferred Compensation Employee Salary Percent DeferredCompensationEmployeeSalaryPercent	0.7
CY2014	krc	Defined Contribution Plan Employer Matching Contribution Per Participant Dollar DefinedContributionPlanEmployerMatchingContributionPerParticipantDollar	0.50	USD
CY2014	dei	Document Period End Date DocumentPeriodEndDate	2014-12-31
CY2014	krc	Defined Contribution Plan Requisite Service Period DefinedContributionPlanRequisiteServicePeriod	P3M
CY2014	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2014	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	2623000	USD
CY2013	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	349951000	USD
CY2013	us-gaap	Payments To Acquire Other Real Estate PaymentsToAcquireOtherRealEstate	102769000	USD
CY2014Q4	us-gaap	Other Commitment OtherCommitment	552500000	USD
CY2014	us-gaap	Operating Leases Income Statement Lease Revenue OperatingLeasesIncomeStatementLeaseRevenue	466328000	USD
CY2013	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	299901000	USD
CY2013	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	55000000	USD
CY2014	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-8328000	USD
CY2013	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	900000	USD
CY2014Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	225830000	USD
CY2014	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2014	krc	Acquired Finitelived Intangible Liabilities Weighted Average Useful Life AcquiredFinitelivedIntangibleLiabilitiesWeightedAverageUsefulLife	P6Y1M0D
CY2012	krc	Disposal Group Including Discontinued Operation Property Expenses DisposalGroupIncludingDiscontinuedOperationPropertyExpenses	9945000	USD
CY2013Q4	us-gaap	Accounts Receivable Gross AccountsReceivableGross	12866000	USD
CY2014Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1999000	USD
CY2014	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	4315000	USD
CY2014Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation AssetsOfDisposalGroupIncludingDiscontinuedOperation	8211000	USD
CY2013	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	1962000	USD
CY2014	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	1479000	USD
CY2013	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	73482000	USD
CY2014	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	77091000	USD
CY2013Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	35377000	USD
CY2014Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	23781000	USD
CY2013	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.40
CY2014	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.40
CY2013Q4	us-gaap	Common Stock Value CommonStockValue	822000	USD
CY2014Q4	us-gaap	Common Stock Value CommonStockValue	863000	USD
CY2013Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	10743000	USD
CY2013	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	39660000	USD
CY2013	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	450000	USD
CY2013Q4	us-gaap	Disposal Group Including Discontinued Operation Prepaid And Other Assets Current DisposalGroupIncludingDiscontinuedOperationPrepaidAndOtherAssetsCurrent	1922000	USD
CY2014Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	7229000	USD
CY2013	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	9600000	USD
CY2013	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	0	USD
CY2013	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	5315000	USD
CY2014	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	966000	USD
CY2014	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	3490000	USD
CY2014	us-gaap	Cost Of Real Estate Revenue CostOfRealEstateRevenue	100514000	USD
CY2014	us-gaap	Depreciation Nonproduction DepreciationNonproduction	2370000	USD
CY2014Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	18374000	USD
CY2013	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax	12252000	USD
CY2014	us-gaap	Disposal Group Including Discontinued Operation Depreciation And Amortization DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortization	2061000	USD
CY2014	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax	121922000	USD
CY2013Q4	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	127123000	USD
CY2013	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax	17378000	USD
CY2014	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax	2573000	USD
CY2014	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	28000	USD
CY2014Q4	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	156416000	USD
CY2013Q4	us-gaap	Disposal Group Including Discontinued Operation Accounts Notes And Loans Receivable Net DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet	269000	USD
CY2013	us-gaap	Depreciation And Amortization DepreciationAndAmortization	188887000	USD
CY2014	us-gaap	Depreciation And Amortization DepreciationAndAmortization	202417000	USD
CY2013Q4	us-gaap	Convertible Notes Payable ConvertibleNotesPayable	168372000	USD
CY2013	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	199558000	USD
CY2014Q4	us-gaap	Convertible Notes Payable ConvertibleNotesPayable	0	USD
CY2013Q4	us-gaap	Disposal Group Including Discontinued Operation Accounts Payable And Accrued Liabilities DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilities	1153000	USD
CY2013	us-gaap	Disposal Group Including Discontinued Operation Depreciation And Amortization DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortization	12600000	USD
CY2013	us-gaap	Depreciation Nonproduction DepreciationNonproduction	1929000	USD
CY2013	us-gaap	Cost Of Real Estate Revenue CostOfRealEstateRevenue	94115000	USD
CY2012	krc	Disposal Group Including Discontinued Operation Provision For Doubtful Accounts DisposalGroupIncludingDiscontinuedOperationProvisionForDoubtfulAccounts	-195000	USD
CY2013	krc	Disposal Group Including Discontinued Operation Provision For Doubtful Accounts DisposalGroupIncludingDiscontinuedOperationProvisionForDoubtfulAccounts	0	USD
CY2014	krc	Disposal Group Including Discontinued Operation Provision For Doubtful Accounts DisposalGroupIncludingDiscontinuedOperationProvisionForDoubtfulAccounts	0	USD
CY2013Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	16502000	USD
CY2012	krc	Noncashor Part Noncash Acquisition Land Contributed Netof Liabilities Assumed NoncashorPartNoncashAcquisitionLandContributedNetofLiabilitiesAssumed	0	USD
CY2012	krc	Noncashor Part Noncash Acquisition Units Issued NoncashorPartNoncashAcquisitionUnitsIssued	5604000	USD
CY2013	krc	Noncashor Part Noncash Acquisition Units Issued NoncashorPartNoncashAcquisitionUnitsIssued	0	USD
CY2014	krc	Noncashor Part Noncash Acquisition Units Issued NoncashorPartNoncashAcquisitionUnitsIssued	0	USD
CY2012	krc	Disposal Group Including Discontinued Operation Tenant Reimbursements DisposalGroupIncludingDiscontinuedOperationTenantReimbursements	6544000	USD
CY2012	krc	Preferred Stockholders And Unitholders Dividends And Distributions Declared But Not Paid PreferredStockholdersAndUnitholdersDividendsAndDistributionsDeclaredButNotPaid	1694000	USD
CY2012	krc	Dividends And Distributions Paid To Preferred Stockholders And Preferred Unitholders DividendsAndDistributionsPaidToPreferredStockholdersAndPreferredUnitholders	14165000	USD
CY2014	krc	Ground Lease Minimum Rent Increase Period Of Increase GroundLeaseMinimumRentIncreasePeriodOfIncrease	P5Y
CY2012	krc	Income Lossfrom Continuing Operations Including Portion Attributableto Noncontrolling Interest Before Gainon Saleof Real Estate IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestBeforeGainonSaleofRealEstate	-5475000	USD
CY2014	krc	Net Income Loss Availableto Common Stockholders Basicand Diluted NetIncomeLossAvailabletoCommonStockholdersBasicandDiluted	165270000	USD
CY2012	krc	Noncash Amortization Of Deferred Revenue Related To Tenant Funded Tenant Improvements NoncashAmortizationOfDeferredRevenueRelatedToTenantFundedTenantImprovements	9136000	USD
CY2012	krc	Numerator For Basic And Diluted Loss Income From Continuing Operations Available To Common Stockholders NumeratorForBasicAndDilutedLossIncomeFromContinuingOperationsAvailableToCommonStockholders	-27509000	USD
CY2013	krc	Numerator For Basic And Diluted Loss Income From Continuing Operations Available To Common Stockholders NumeratorForBasicAndDilutedLossIncomeFromContinuingOperationsAvailableToCommonStockholders	-40000	USD
CY2014	krc	Numerator For Basic And Diluted Loss Income From Continuing Operations Available To Common Stockholders NumeratorForBasicAndDilutedLossIncomeFromContinuingOperationsAvailableToCommonStockholders	43398000	USD
CY2014	krc	Period For Ground Lease Rentals Adjustment PeriodForGroundLeaseRentalsAdjustment	P5Y
CY2012	krc	Provision For Doubtful Accounts Including Discontinued Operations ProvisionForDoubtfulAccountsIncludingDiscontinuedOperations	-42000	USD
CY2011	krc	Reit Annual Taxable Income Distribution Requirement Percentage ReitAnnualTaxableIncomeDistributionRequirementPercentage	0.90
CY2014	krc	Reit Annual Taxable Income Distribution Requirement Percentage ReitAnnualTaxableIncomeDistributionRequirementPercentage	0.90
CY2013	krc	Sec Schedule Iii Real Estate Accumulated Depreciation Deductions Assets Heldfor Sale SECScheduleIIIRealEstateAccumulatedDepreciationDeductionsAssetsHeldforSale	63110000	USD
CY2014	krc	Sec Schedule Iii Real Estate Accumulated Depreciation Deductions Assets Heldfor Sale SECScheduleIIIRealEstateAccumulatedDepreciationDeductionsAssetsHeldforSale	7007000	USD
CY2012	krc	Disposal Group Including Discontinued Operation Real Estate Taxes DisposalGroupIncludingDiscontinuedOperationRealEstateTaxes	5696000	USD
CY2012	krc	Exchange Of Common Units Of Operating Partnership Into Shares Of Companys Common Stock ExchangeOfCommonUnitsOfOperatingPartnershipIntoSharesOfCompanysCommonStock	0	USD
CY2014	krc	Ground Lease Minimum Rent Increase Percentage Of Annual Percentage Rent GroundLeaseMinimumRentIncreasePercentageOfAnnualPercentageRent	0.50
CY2013	krc	Income Lossfrom Continuing Operations Including Portion Attributableto Noncontrolling Interest Before Gainon Saleof Real Estate IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestBeforeGainonSaleofRealEstate	14935000	USD
CY2014	krc	Income Lossfrom Continuing Operations Including Portion Attributableto Noncontrolling Interest Before Gainon Saleof Real Estate IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestBeforeGainonSaleofRealEstate	55823000	USD
CY2012	krc	Interest Income And Other Net Investment Gains Losses InterestIncomeAndOtherNetInvestmentGainsLosses	848000	USD
CY2013Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	31490000	USD
CY2014Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	32899000	USD
CY2014	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	2300000	USD
CY2014Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	30300000	USD
CY2013	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.37
CY2014	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.99
CY2013	us-gaap	Disposal Group Including Discontinued Operation Rental Income DisposalGroupIncludingDiscontinuedOperationRentalIncome	31984000	USD
CY2014	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y6M
CY2013	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.37
CY2014	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.95
CY2014	us-gaap	Disposal Group Including Discontinued Operation Rental Income DisposalGroupIncludingDiscontinuedOperationRentalIncome	7206000	USD
CY2013	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	0	USD
CY2014	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	3490000	USD
CY2014	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	46152000	USD
CY2012	krc	Sec Schedule Iii Real Estate Accumulated Depreciation Deductions Assets Heldfor Sale SECScheduleIIIRealEstateAccumulatedDepreciationDeductionsAssetsHeldforSale	0	USD
CY2012	krc	Sec Schedule Iii Real Estate Accumulated Depreciation Period Decrease SECScheduleIIIRealEstateAccumulatedDepreciationPeriodDecrease	111894000	USD
CY2013	krc	Sec Schedule Iii Real Estate Accumulated Depreciation Period Decrease SECScheduleIIIRealEstateAccumulatedDepreciationPeriodDecrease	82883000	USD
CY2014	krc	Sec Schedule Iii Real Estate Accumulated Depreciation Period Decrease SECScheduleIIIRealEstateAccumulatedDepreciationPeriodDecrease	25134000	USD
CY2012	krc	Sec Schedule Iii Real Estate Accumulated Depreciation Period Increase SECScheduleIIIRealEstateAccumulatedDepreciationPeriodIncrease	125906000	USD
CY2013	krc	Sec Schedule Iii Real Estate Accumulated Depreciation Period Increase SECScheduleIIIRealEstateAccumulatedDepreciationPeriodIncrease	145325000	USD
CY2014	us-gaap	Below Market Lease Acquired BelowMarketLeaseAcquired	7000000	USD
CY2013	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	40708000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.40
CY2013	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	649000	USD
CY2014	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	16633000	USD
CY2014	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	1.44
CY2013	us-gaap	Increase Decrease In Operating Assets IncreaseDecreaseInOperatingAssets	4615000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.00
CY2013	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	-229915000	USD
CY2014	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	25405000	USD
CY2013	us-gaap	Interest Paid Net InterestPaidNet	65157000	USD
CY2014	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.52
CY2013	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.00
CY2013	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.37
CY2014	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.51
CY2013	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	40137000	USD
CY2014	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	1.47
CY2013	us-gaap	Interest Expense InterestExpense	75870000	USD
CY2013	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.37
CY2013	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	36000	USD
CY2014	krc	Sharesof Common Stock Issuedin Capped Call Value SharesofCommonStockIssuedinCappedCallValue	0	USD
CY2012	krc	Tenant Improvements Funded Directly By Tenants To Third Parties TenantImprovementsFundedDirectlyByTenantsToThirdParties	17719000	USD
CY2012	krc	Valueof Stock Issued Sharebased Compensation ValueofStockIssuedSharebasedCompensation	31396000	USD
CY2014Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	15500000	USD
CY2012	krc	Sec Schedule Iii Real Estate Period Decrease SECScheduleIIIRealEstatePeriodDecrease	272025000	USD
CY2013	krc	Sec Schedule Iii Real Estate Period Decrease SECScheduleIIIRealEstatePeriodDecrease	329428000	USD
CY2014	krc	Sec Schedule Iii Real Estate Period Decrease SECScheduleIIIRealEstatePeriodDecrease	135477000	USD
CY2014	krc	Sec Schedule Iii Real Estate Period Increase SECScheduleIIIRealEstatePeriodIncrease	928462000	USD
CY2012	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	877000	USD
CY2013	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	2521000	USD
CY2014	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	3533000	USD
CY2013	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	13200000	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Other AdjustmentsToAdditionalPaidInCapitalOther	0	USD
CY2013	us-gaap	Adjustments To Additional Paid In Capital Other AdjustmentsToAdditionalPaidInCapitalOther	0	USD
CY2014	us-gaap	Adjustments To Additional Paid In Capital Other AdjustmentsToAdditionalPaidInCapitalOther	0	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	8537000	USD
CY2013	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	9563000	USD
CY2014	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	14471000	USD
CY2012	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	8500000	USD
CY2014	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	14500000	USD
CY2012	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-6699000	USD
CY2014	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	12200000	USD
CY2012	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	8433000	USD
CY2012	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	36202000	USD
CY2013	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	47395000	USD
CY2014	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	41155000	USD
CY2013Q4	us-gaap	Assets Assets	5111028000	USD
CY2014Q4	us-gaap	Assets Assets	5633736000	USD
CY2013Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation AssetsOfDisposalGroupIncludingDiscontinuedOperation	213100000	USD
CY2012	krc	Sec Schedule Iii Real Estate Period Increase SECScheduleIIIRealEstatePeriodIncrease	1230729000	USD
CY2014	krc	Sec Schedule Iii Real Estate Accumulated Depreciation Period Increase SECScheduleIIIRealEstateAccumulatedDepreciationPeriodIncrease	153841000	USD
CY2013	krc	Sec Schedule Iii Real Estate Period Increase SECScheduleIIIRealEstatePeriodIncrease	836981000	USD
CY2012	krc	Sec Schedule Iii Real Estate Deductions Properties Heldfor Sale SECScheduleIIIRealEstateDeductionsPropertiesHeldforSale	0	USD
CY2013	krc	Sec Schedule Iii Real Estate Deductions Properties Heldfor Sale SECScheduleIIIRealEstateDeductionsPropertiesHeldforSale	259251000	USD
CY2014	krc	Sec Schedule Iii Real Estate Deductions Properties Heldfor Sale SECScheduleIIIRealEstateDeductionsPropertiesHeldforSale	14700000	USD
CY2013Q4	us-gaap	Line Of Credit LineOfCredit	45000000	USD
CY2014Q4	us-gaap	Line Of Credit LineOfCredit	140000000	USD
CY2013	us-gaap	Marketable Securities Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesGainLossExcludingOtherThanTemporaryImpairments	1489000	USD
CY2014	us-gaap	Marketable Securities Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesGainLossExcludingOtherThanTemporaryImpairments	397000	USD
CY2013Q4	us-gaap	Land And Land Improvements LandAndLandImprovements	657491000	USD
CY2014Q4	us-gaap	Land And Land Improvements LandAndLandImprovements	877633000	USD
CY2013	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	3504000	USD
CY2013Q4	us-gaap	Minority Interest In Operating Partnerships MinorityInterestInOperatingPartnerships	49963000	USD
CY2014	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	3075000	USD
CY2013Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation	14447000	USD
CY2014Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation	56000	USD
CY2014Q4	us-gaap	Minority Interest In Operating Partnerships MinorityInterestInOperatingPartnerships	51864000	USD
CY2014Q4	us-gaap	Minority Interest Ownership Percentage By Parent MinorityInterestOwnershipPercentageByParent	0.980
CY2013Q4	us-gaap	Limited Partners Capital Account Units Outstanding LimitedPartnersCapitalAccountUnitsOutstanding	1805200	shares
CY2014Q4	us-gaap	Limited Partners Capital Account Units Outstanding LimitedPartnersCapitalAccountUnitsOutstanding	1804200	shares
CY2012Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	756515000	USD
CY2012	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	4937000	USD
CY2013	us-gaap	Noncontrolling Interest In Net Income Loss Operating Partnerships Redeemable NoncontrollingInterestInNetIncomeLossOperatingPartnershipsRedeemable	685000	USD
CY2014Q1	us-gaap	Net Rentable Area NetRentableArea	79000	sqft
CY2014	us-gaap	Noncontrolling Interest In Net Income Loss Operating Partnerships Redeemable NoncontrollingInterestInNetIncomeLossOperatingPartnershipsRedeemable	3589000	USD
CY2013	us-gaap	Operating Leases Income Statement Lease Revenue OperatingLeasesIncomeStatementLeaseRevenue	411899000	USD
CY2013	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	95496000	USD
CY2014	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	0	USD
CY2014	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	102229000	USD
CY2013	us-gaap	Business Combination Pro Forma Information Earnings Or Loss Of Acquiree Since Acquisition Date Actual BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual	900000	USD
CY2013	us-gaap	Business Combination Pro Forma Information Revenue Of Acquiree Since Acquisition Date Actual BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual	17500000	USD
CY2012	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	54198000	USD
CY2012	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	231000	USD
CY2014	us-gaap	Business Combination Pro Forma Information Revenue Of Acquiree Since Acquisition Date Actual BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual	7700000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	4777000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	16700000	USD
CY2012	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	11923000	USD
CY2014	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-11596000	USD
CY2014Q4	us-gaap	Cash Fdic Insured Amount CashFDICInsuredAmount	250000	USD
CY2013Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2014Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2011	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.40
CY2014Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2013Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	82153944	shares
CY2014	us-gaap	Business Combination Pro Forma Information Earnings Or Loss Of Acquiree Since Acquisition Date Actual BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual	2800000	USD
CY2014	us-gaap	Concentration Risk Percentage1 ConcentrationRiskPercentage1	0.353
CY2012	us-gaap	Cost Of Real Estate Revenue CostOfRealEstateRevenue	73998000	USD
CY2014Q4	us-gaap	Debt Instrument Unamortized Premium DebtInstrumentUnamortizedPremium	10300000	USD
CY2013Q4	us-gaap	Deferred Compensation Liability Current And Noncurrent DeferredCompensationLiabilityCurrentAndNoncurrent	9900000	USD
CY2014Q4	us-gaap	Deferred Compensation Liability Current And Noncurrent DeferredCompensationLiabilityCurrentAndNoncurrent	11900000	USD
CY2012	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	700000	USD
CY2013	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	900000	USD
CY2014	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1000000	USD
CY2014	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.1
CY2014	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Percent DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent	0.6
CY2012	us-gaap	Depreciation And Amortization DepreciationAndAmortization	150521000	USD
CY2014	us-gaap	Disposal Group Including Discontinued Operation Operating Expense DisposalGroupIncludingDiscontinuedOperationOperatingExpense	4924000	USD
CY2012	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	168687000	USD
CY2012	us-gaap	Depreciation Nonproduction DepreciationNonproduction	1213000	USD
CY2012	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax	259245000	USD
CY2013Q4	us-gaap	Disposal Group Including Discontinued Operation Property Plant And Equipment DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipment	259250000	USD
CY2012	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax	23331000	USD
CY2013Q4	us-gaap	Disposal Group Including Discontinued Operation Property Plant And Equipment Noncurrent DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent	196140000	USD
CY2012	us-gaap	Disposal Group Including Discontinued Operation Depreciation And Amortization DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortization	19379000	USD
CY2012	us-gaap	Disposal Group Including Discontinued Operation Operating Expense DisposalGroupIncludingDiscontinuedOperationOperatingExpense	34825000	USD
CY2013	us-gaap	Disposal Group Including Discontinued Operation Operating Expense DisposalGroupIncludingDiscontinuedOperationOperatingExpense	23330000	USD
CY2012	us-gaap	Disposal Group Including Discontinued Operation Other Income DisposalGroupIncludingDiscontinuedOperationOtherIncome	1923000	USD
CY2013	us-gaap	Disposal Group Including Discontinued Operation Other Income DisposalGroupIncludingDiscontinuedOperationOtherIncome	5178000	USD
CY2014	us-gaap	Disposal Group Including Discontinued Operation Other Income DisposalGroupIncludingDiscontinuedOperationOtherIncome	13000	USD
CY2012	us-gaap	Disposal Group Including Discontinued Operation Rental Income DisposalGroupIncludingDiscontinuedOperationRentalIncome	49689000	USD
CY2012	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	58156000	USD
CY2013	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	111517000	USD
CY2014	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	417784000	USD
CY2014	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	118463000	USD
CY2013Q4	us-gaap	Prepaid Expense And Other Assets PrepaidExpenseAndOtherAssets	15783000	USD
CY2013	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	4384000	USD
CY2014	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	8648000	USD
CY2014Q4	us-gaap	Prepaid Expense And Other Assets PrepaidExpenseAndOtherAssets	20375000	USD
CY2013	us-gaap	Other Real Estate Revenue OtherRealEstateRevenue	7165000	USD
CY2014	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	1699000	USD
CY2013	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	129873000	USD
CY2013	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	2520000	USD
CY2014	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	132080000	USD
CY2014	us-gaap	Payments For Proceeds From Deposits On Real Estate Acquisitions PaymentsForProceedsFromDepositsOnRealEstateAcquisitions	1983000	USD
CY2014	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	3533000	USD
CY2013	us-gaap	Payments To Acquire Commercial Real Estate PaymentsToAcquireCommercialRealEstate	202682000	USD
CY2014	us-gaap	Payments To Acquire Commercial Real Estate PaymentsToAcquireCommercialRealEstate	204546000	USD
CY2013	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	320141000	USD
CY2014	us-gaap	Interest Expense InterestExpense	67571000	USD
CY2014	us-gaap	Interest Paid Net InterestPaidNet	58944000	USD
CY2013Q4	us-gaap	Investment Building And Building Improvements InvestmentBuildingAndBuildingImprovements	3590699000	USD
CY2014	us-gaap	Other Real Estate Revenue OtherRealEstateRevenue	8680000	USD
CY2013	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	1689000	USD
CY2013	us-gaap	Payments For Proceeds From Deposits On Real Estate Acquisitions PaymentsForProceedsFromDepositsOnRealEstateAcquisitions	2596000	USD
CY2014	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	395528000	USD
CY2014	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	45197000	USD
CY2013	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	21178000	USD
CY2014	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	427544000	USD
CY2013	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	128000	USD
CY2014	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	21092000	USD
CY2013	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	396000	USD
CY2014	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	58000	USD
CY2013Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	818957000	USD
CY2014Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	947664000	USD
CY2014	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	505000000	USD
CY2013	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	39417000	USD
CY2014Q4	us-gaap	Redeemable Noncontrolling Interest Equity Common Fair Value RedeemableNoncontrollingInterestEquityCommonFairValue	126800000	USD
CY2013	us-gaap	Redeemable Preferred Stock Dividends RedeemablePreferredStockDividends	13250000	USD
CY2014	us-gaap	Redeemable Preferred Stock Dividends RedeemablePreferredStockDividends	13250000	USD
CY2013	us-gaap	Repayments Of Convertible Debt RepaymentsOfConvertibleDebt	0	USD
CY2014	us-gaap	Repayments Of Convertible Debt RepaymentsOfConvertibleDebt	172500000	USD
CY2013	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	195000000	USD
CY2014	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	410000000	USD
CY2013	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	93688000	USD
CY2014	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	9845000	USD
CY2014Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	75185000	USD
CY2014Q4	us-gaap	Secured Debt SecuredDebt	546292000	USD
CY2013	us-gaap	Share Based Compensation ShareBasedCompensation	8616000	USD
CY2014	us-gaap	Share Based Compensation ShareBasedCompensation	12095000	USD
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	236604	shares
CY2014Q1	us-gaap	Share Price SharePrice	51.64
CY2014Q2	us-gaap	Share Price SharePrice	60.16
CY2013	us-gaap	Straight Line Rent StraightLineRent	24135000	USD
CY2013Q4	us-gaap	Unsecured Debt UnsecuredDebt	1431132000	USD
CY2014	us-gaap	Straight Line Rent StraightLineRent	31782000	USD
CY2013	us-gaap	Tenant Reimbursements TenantReimbursements	38047000	USD
CY2014	us-gaap	Tenant Reimbursements TenantReimbursements	46717000	USD
CY2013Q4	us-gaap	Trading Securities TradingSecurities	10008000	USD
CY2014Q4	us-gaap	Trading Securities TradingSecurities	11971000	USD
CY2014Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.32
CY2014	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	7497000	USD
CY2012	us-gaap	Dividends Common Stock DividendsCommonStock	104393000	USD
CY2014	us-gaap	Dividends Common Stock DividendsCommonStock	121563000	USD
CY2012	us-gaap	Dividends Preferred Stock DividendsPreferredStock	14108000	USD
CY2013	us-gaap	Dividends Preferred Stock DividendsPreferredStock	13250000	USD
CY2014	us-gaap	Dividends Preferred Stock DividendsPreferredStock	13250000	USD
CY2012	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.56
CY2013Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.02
CY2013Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.08
CY2013Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.07
CY2013Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.23
CY2014Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.17
CY2014Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.33
CY2014Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.18
CY2014Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.32
CY2013Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.02
CY2013Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.08
CY2013Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.07
CY2013Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.23
CY2014Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.14
CY2014Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.32
CY2014Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.18
CY2014	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	3490000	USD
CY2012	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	900000	USD
CY2012	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	0	USD
CY2012	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	36188000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	-656000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-5475000	USD
CY2013Q1	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-225000	USD
CY2013Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	6942000	USD
CY2013Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	3180000	USD
CY2013Q4	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	5038000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	14935000	USD
CY2014Q1	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	10874000	USD
CY2014Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	15854000	USD
CY2014Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	13168000	USD
CY2014Q4	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	19417000	USD
CY2014	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	59313000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.40
CY2012	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	0	USD
CY2013	us-gaap	Dividends Common Stock DividendsCommonStock	114543000	USD
CY2014Q4	us-gaap	Variable Interest Entity Consolidated Carrying Amount Liabilities VariableInterestEntityConsolidatedCarryingAmountLiabilities	23400000	USD
CY2013	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
CY2014	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1877485	shares
CY2014	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	84967720	shares
CY2013	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	77343853	shares
CY2014Q4	us-gaap	Variable Interest Entity Consolidated Carrying Amount Assets VariableInterestEntityConsolidatedCarryingAmountAssets	219600000	USD
CY2014	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	83090235	shares
CY2013Q4	us-gaap	Variable Interest Entity Consolidated Carrying Amount Liabilities VariableInterestEntityConsolidatedCarryingAmountLiabilities	12100000	USD
CY2013Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	2613000	USD
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	3.96
CY2014Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	91058000	USD
CY2014Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	15289000	USD
CY2014Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	6135000	USD
CY2013Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	5847000	USD
CY2014Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	12013000	USD
CY2013Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	18009000	USD
CY2014	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	124495000	USD
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	6843000	USD
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	3.96
CY2012	us-gaap	Increase Decrease In Operating Assets IncreaseDecreaseInOperatingAssets	1297000	USD
CY2012	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	17320000	USD
CY2012	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	18359000	USD
CY2012	us-gaap	Interest Expense InterestExpense	79114000	USD
CY2012	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	17657000	USD
CY2012	us-gaap	Interest Paid Net InterestPaidNet	71633000	USD
CY2012	us-gaap	Marketable Securities Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesGainLossExcludingOtherThanTemporaryImpairments	723000	USD
CY2013Q4	us-gaap	Minority Interest MinorityInterest	54848000	USD
CY2014Q4	us-gaap	Minority Interest MinorityInterest	57726000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	537705000	USD
CY2013	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	284621000	USD
CY2014	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	244587000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-706506000	USD
CY2013	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-506520000	USD
CY2014	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-501436000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	180724000	USD
CY2012	us-gaap	Net Income Loss NetIncomeLoss	270914000	USD
CY2013Q1	us-gaap	Net Income Loss NetIncomeLoss	2410000	USD
CY2013Q2	us-gaap	Net Income Loss NetIncomeLoss	9946000	USD
CY2013Q3	us-gaap	Net Income Loss NetIncomeLoss	8896000	USD
CY2013	us-gaap	Net Income Loss NetIncomeLoss	43880000	USD
CY2014Q1	us-gaap	Net Income Loss NetIncomeLoss	99845000	USD
CY2014Q2	us-gaap	Net Income Loss NetIncomeLoss	30540000	USD
CY2014Q3	us-gaap	Net Income Loss NetIncomeLoss	18982000	USD
CY2013Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	3161000	USD
CY2013	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	32742000	USD
CY2013Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	2123000	USD
CY2013	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-7777000	USD
CY2014	us-gaap	Increase Decrease In Operating Assets IncreaseDecreaseInOperatingAssets	-367000	USD
CY2013	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	240576000	USD
CY2014	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	245253000	USD
CY2013Q4	us-gaap	Net Income Loss NetIncomeLoss	22628000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Five Years OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears	306878000	USD
CY2012	us-gaap	Other Real Estate Revenue OtherRealEstateRevenue	1487000	USD
CY2013Q3	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	3312000	USD
CY2013Q3	us-gaap	Profit Loss ProfitLoss	9027000	USD
CY2014Q1	us-gaap	Profit Loss ProfitLoss	101932000	USD
CY2013Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	818957000	USD
CY2014Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	6057932000	USD
CY2010Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	3798690000	USD
CY2014Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	5110268000	USD
CY2014Q4	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	141765000	USD
CY2014	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	-1000	USD
CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1327482000	USD
CY2012Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2235933000	USD
CY2013Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2516160000	USD
CY2013Q4	us-gaap	Secured Debt SecuredDebt	560434000	USD
CY2014Q4	us-gaap	Unsecured Debt UnsecuredDebt	1783121000	USD
CY2013Q4	us-gaap	Variable Interest Entity Consolidated Carrying Amount Assets VariableInterestEntityConsolidatedCarryingAmountAssets	251800000	USD
CY2013	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	77343853	shares
CY2013Q4	us-gaap	Redeemable Noncontrolling Interest Equity Common Fair Value RedeemableNoncontrollingInterestEquityCommonFairValue	90800000	USD
CY2014	us-gaap	Net Income Loss NetIncomeLoss	180219000	USD
CY2012	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	249826000	USD
CY2014Q4	us-gaap	Net Rentable Area NetRentableArea	14096617	sqft
CY2013Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-903000	USD
CY2013Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	5584000	USD
CY2013Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	19316000	USD
CY2012	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	221032000	USD
CY2013	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	30630000	USD
CY2014Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	96532000	USD
CY2014Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	15669000	USD
CY2014Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	27540000	USD
CY2012	us-gaap	Noncash Or Part Noncash Acquisition Other Liabilities Assumed1 NoncashOrPartNoncashAcquisitionOtherLiabilitiesAssumed1	37535000	USD
CY2014	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	166969000	USD
CY2012	us-gaap	Noncontrolling Interest In Net Income Loss Operating Partnerships Redeemable NoncontrollingInterestInNetIncomeLossOperatingPartnershipsRedeemable	6187000	USD
CY2013	us-gaap	Noncontrolling Interest Increase From Business Combination NoncontrollingInterestIncreaseFromBusinessCombination	4885000	USD
CY2014	us-gaap	Noncontrolling Interest Increase From Business Combination NoncontrollingInterestIncreaseFromBusinessCombination	977000	USD
CY2012	us-gaap	Noncontrolling Interest Increase From Business Combination NoncontrollingInterestIncreaseFromBusinessCombination	5604000	USD
CY2012	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-78266000	USD
CY2013	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-74235000	USD
CY2014	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-67010000	USD
CY2014Q4	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	9
CY2012	us-gaap	Operating Expenses OperatingExpenses	300527000	USD
CY2013	us-gaap	Operating Expenses OperatingExpenses	367941000	USD
CY2014	us-gaap	Operating Expenses OperatingExpenses	398892000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	169958000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	3120000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	3120000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	3120000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	3120000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	3120000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	154358000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Receivable OperatingLeasesFutureMinimumPaymentsReceivable	3181855000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Receivable Current OperatingLeasesFutureMinimumPaymentsReceivableCurrent	428302000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Four Years OperatingLeasesFutureMinimumPaymentsReceivableInFourYears	367745000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Three Years OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears	414397000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Two Years OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears	447163000	USD
CY2012	us-gaap	Other Preferred Stock Dividends And Adjustments OtherPreferredStockDividendsAndAdjustments	3541000	USD
CY2013	us-gaap	Other Preferred Stock Dividends And Adjustments OtherPreferredStockDividendsAndAdjustments	0	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Receivable Thereafter OperatingLeasesFutureMinimumPaymentsReceivableThereafter	1217370000	USD
CY2012	us-gaap	Operating Leases Income Statement Lease Revenue OperatingLeasesIncomeStatementLeaseRevenue	342164000	USD
CY2014Q4	us-gaap	Net Income Loss NetIncomeLoss	30852000	USD
CY2014	us-gaap	Other Preferred Stock Dividends And Adjustments OtherPreferredStockDividendsAndAdjustments	0	USD
CY2014Q2	us-gaap	Profit Loss ProfitLoss	31143000	USD
CY2014Q3	us-gaap	Profit Loss ProfitLoss	19303000	USD
CY2012	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	153000	USD
CY2013Q4	us-gaap	Profit Loss ProfitLoss	23047000	USD
CY2014Q4	us-gaap	Profit Loss ProfitLoss	31430000	USD
CY2013	us-gaap	Profit Loss ProfitLoss	44565000	USD
CY2014	us-gaap	Profit Loss ProfitLoss	183808000	USD
CY2012	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	86377000	USD
CY2012	us-gaap	Payments To Acquire Commercial Real Estate PaymentsToAcquireCommercialRealEstate	454841000	USD
CY2012	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	21088000	USD
CY2012	us-gaap	Payments To Acquire Other Real Estate PaymentsToAcquireOtherRealEstate	333942000	USD
CY2013	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	13250000	USD
CY2012	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	83310000	USD
CY2014	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	13250000	USD
CY2012	us-gaap	Preferred Stock Redemption Premium PreferredStockRedemptionPremium	6980000	USD
CY2013	us-gaap	Preferred Stock Redemption Premium PreferredStockRedemptionPremium	0	USD
CY2014	us-gaap	Preferred Stock Redemption Premium PreferredStockRedemptionPremium	0	USD
CY2013Q1	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	3313000	USD
CY2012	us-gaap	Proceeds From Issuance Of Redeemable Preferred Stock ProceedsFromIssuanceOfRedeemablePreferredStock	192411000	USD
CY2013	us-gaap	Proceeds From Issuance Of Redeemable Preferred Stock ProceedsFromIssuanceOfRedeemablePreferredStock	0	USD
CY2013Q2	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	3313000	USD
CY2014	us-gaap	Proceeds From Issuance Of Redeemable Preferred Stock ProceedsFromIssuanceOfRedeemablePreferredStock	0	USD
CY2012	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	97000000	USD
CY2013	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	0	USD
CY2014	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	0	USD
CY2013Q4	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	3312000	USD
CY2014Q1	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	3313000	USD
CY2014Q2	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	3312000	USD
CY2014Q3	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	3313000	USD
CY2014Q4	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	3312000	USD
CY2012	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	1751000	USD
CY2013	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	448000	USD
CY2014	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	0	USD
CY2012	us-gaap	Proceeds From Insurance Settlement Operating Activities ProceedsFromInsuranceSettlementOperatingActivities	-1751000	USD
CY2013	us-gaap	Proceeds From Insurance Settlement Operating Activities ProceedsFromInsuranceSettlementOperatingActivities	-448000	USD
CY2014	us-gaap	Proceeds From Insurance Settlement Operating Activities ProceedsFromInsuranceSettlementOperatingActivities	0	USD
CY2012	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	672102000	USD
CY2012	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	1602000	USD
CY2012	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	150000000	USD
CY2012	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	704000000	USD
CY2012	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	263572000	USD
CY2012	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	129000	USD
CY2012	us-gaap	Profit Loss ProfitLoss	277101000	USD
CY2013Q1	us-gaap	Profit Loss ProfitLoss	2388000	USD
CY2013Q2	us-gaap	Profit Loss ProfitLoss	10103000	USD
CY2014Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	947664000	USD
CY2014Q4	us-gaap	Real Estate And Accumulated Depreciation Amount Of Encumbrances RealEstateAndAccumulatedDepreciationAmountOfEncumbrances	536022000	USD
CY2014Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements	4620153000	USD
CY2014Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Land RealEstateAndAccumulatedDepreciationCarryingAmountOfLand	1437779000	USD
CY2014Q4	us-gaap	Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements	1789547000	USD
CY2014Q4	us-gaap	Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements	2870399000	USD
CY2014Q4	us-gaap	Real Estate And Accumulated Depreciation Initial Cost Of Land RealEstateAndAccumulatedDepreciationInitialCostOfLand	1397986000	USD
CY2014Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	6057932000	USD
CY2012	us-gaap	Real Estate Accumulated Depreciation Other Deductions RealEstateAccumulatedDepreciationOtherDeductions	2097000	USD
CY2013	us-gaap	Real Estate Accumulated Depreciation Other Deductions RealEstateAccumulatedDepreciationOtherDeductions	2629000	USD
CY2014	us-gaap	Real Estate Accumulated Depreciation Other Deductions RealEstateAccumulatedDepreciationOtherDeductions	16000	USD
CY2012	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	109797000	USD
CY2013	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	17144000	USD
CY2014	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	18111000	USD
CY2012	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	264533000	USD
CY2013	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	56993000	USD
CY2014	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	113416000	USD
CY2014Q4	us-gaap	Real Estate Federal Income Tax Basis RealEstateFederalIncomeTaxBasis	5200000000	USD
CY2012	us-gaap	Real Estate Improvements RealEstateImprovements	207345000	USD
CY2013	us-gaap	Real Estate Improvements RealEstateImprovements	452331000	USD
CY2014	us-gaap	Real Estate Improvements RealEstateImprovements	588166000	USD
CY2012Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	4757394000	USD
CY2013Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	5264947000	USD
CY2012	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	1023384000	USD
CY2013	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	384650000	USD
CY2014	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	340296000	USD
CY2012	us-gaap	Real Estate Other Deductions RealEstateOtherDeductions	7492000	USD
CY2013	us-gaap	Real Estate Other Deductions RealEstateOtherDeductions	13184000	USD
CY2014	us-gaap	Real Estate Other Deductions RealEstateOtherDeductions	7361000	USD
CY2012	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	373318000	USD
CY2013Q1	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	109107000	USD
CY2013Q2	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	115855000	USD
CY2013Q3	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	113545000	USD
CY2013Q4	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	118604000	USD
CY2013	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	457111000	USD
CY2014Q1	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	123758000	USD
CY2014Q3	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	129024000	USD
CY2010Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	742503000	USD
CY2014Q2	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	127178000	USD
CY2014Q4	us-gaap	Stock Repurchase Program Remaining Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased	988025	shares
CY2013Q4	us-gaap	Stockholders Equity StockholdersEquity	2461312000	USD
CY2014Q4	us-gaap	Stockholders Equity StockholdersEquity	2666210000	USD
CY2014Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2723936000	USD
CY2012	us-gaap	Straight Line Rent StraightLineRent	21530000	USD
CY2012	us-gaap	Tenant Reimbursements TenantReimbursements	29667000	USD
CY2014	us-gaap	Stock Issued During Period Value Conversion Of Convertible Securities StockIssuedDuringPeriodValueConversionOfConvertibleSecurities	223000	USD
CY2013	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	128000	USD
CY2012	us-gaap	Stock Redeemed Or Called During Period Value StockRedeemedOrCalledDuringPeriodValue	2062000	USD
CY2012	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	31562000	USD
CY2012	us-gaap	Redeemable Preferred Stock Dividends RedeemablePreferredStockDividends	10567000	USD
CY2012	us-gaap	Repayments Of Convertible Debt RepaymentsOfConvertibleDebt	148000000	USD
CY2012	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	701000000	USD
CY2012	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	106262000	USD
CY2012	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	-125906000	USD
CY2013	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	-145325000	USD
CY2014	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	-153841000	USD
CY2012	us-gaap	Share Based Compensation ShareBasedCompensation	7670000	USD
CY2014	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P7Y2M
CY2014	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P7Y2M
CY2013	us-gaap	Stock Issued During Period Value Conversion Of Units StockIssuedDuringPeriodValueConversionOfUnits	0	USD
CY2014	us-gaap	Stock Issued During Period Value Conversion Of Units StockIssuedDuringPeriodValueConversionOfUnits	0	USD
CY2012	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	672102000	USD
CY2013	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	349951000	USD
CY2014	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	123860000	USD
CY2012	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	-784000	USD
CY2013	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	1000	USD
CY2012	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	1291000	USD
CY2013	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	1448000	USD
CY2014	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	1692000	USD
CY2012	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	129000	USD
CY2012	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
CY2012	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	69639623	shares
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	69639623	shares
CY2014	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	521725000	USD
CY2014	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Concentration of Credit Risk</font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">All of our properties and development and redevelopment projects are owned and all of our business is currently conducted in the state of California with the exception of the ownership and operation of </font><font style="font-family:inherit;font-size:10pt;">thirteen</font><font style="font-family:inherit;font-size:10pt;"> office properties located in the state of Washington. The ability of tenants to honor the terms of their leases is dependent upon the economic, regulatory, and social factors affecting the communities in which our tenants operate. </font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">As of </font><font style="font-family:inherit;font-size:10pt;">December 31, 2014</font><font style="font-family:inherit;font-size:10pt;">, our 15 largest tenants represented approximately </font><font style="font-family:inherit;font-size:10pt;">35.3%</font><font style="font-family:inherit;font-size:10pt;"> of total annualized base rental revenues. </font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We have deposited cash with financial institutions that is insured by the Federal Deposit Insurance Corporation (“FDIC”) up to </font><font style="font-family:inherit;font-size:10pt;">$250,000</font><font style="font-family:inherit;font-size:10pt;"> per institution. As of </font><font style="font-family:inherit;font-size:10pt;">December 31, 2014</font><font style="font-family:inherit;font-size:10pt;"> and </font><font style="font-family:inherit;font-size:10pt;">2013</font><font style="font-family:inherit;font-size:10pt;">, we had cash accounts in excess of FDIC insured limits. </font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></div>
CY2014	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Use of Estimates</font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The preparation of financial statements in conformity with GAAP requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reported periods. Actual results could differ from those estimates.</font></div></div>
CY2014	us-gaap	Payments To Acquire Other Real Estate PaymentsToAcquireOtherRealEstate	147182000	USD
CY2014	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2012	krc	Net Income Loss Availableto Common Stockholders Basicand Diluted NetIncomeLossAvailabletoCommonStockholdersBasicandDiluted	248224000	USD
CY2013	krc	Net Income Loss Availableto Common Stockholders Basicand Diluted NetIncomeLossAvailabletoCommonStockholdersBasicandDiluted	28941000	USD
CY2013	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	18677000	USD
CY2014Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	86259684	shares
CY2012	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.56
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	282576000	USD
CY2013	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	29630000	USD
CY2014	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	44385000	USD
CY2012	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	3168000	USD
CY2013Q4	us-gaap	Liabilities Liabilities	2594868000	USD
CY2014Q4	us-gaap	Liabilities Liabilities	2909800000	USD
CY2013Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	5111028000	USD
CY2014Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	5633736000	USD
CY2013Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	6633000	USD
CY2014Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	27228000	USD
CY2012	us-gaap	Payments For Proceeds From Deposits On Real Estate Acquisitions PaymentsForProceedsFromDepositsOnRealEstateAcquisitions	-5000000	USD
CY2012	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	97386000	USD
CY2012	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	7963000	USD
CY2012	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1661000	USD
CY2013Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	4445990000	USD
CY2013Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	198467000	USD
CY2014Q4	us-gaap	Accounts Receivable Gross AccountsReceivableGross	9228000	USD
CY2014	us-gaap	Revenue Recognition Leases Operating RevenueRecognitionLeasesOperating	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Revenue Recognition</font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We recognize revenue from rent, tenant reimbursements, parking and other revenue once all of the following criteria are met: (i) the agreement has been fully executed and delivered, (ii) services have been rendered, (iii) the amount is fixed or determinable, and (iv) the collectability of the amount is reasonably assured.</font></div><div style="line-height:120%;padding-left:4px;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Minimum annual rental revenues are recognized in rental revenues on a straight-line basis over the term of the related lease. Rental revenue recognition commences when the tenant takes possession or controls the physical use of the leased space. In order for the tenant to take possession, the leased space must be substantially ready for its intended use. To determine whether the leased space is substantially ready for its intended use, we evaluate whether the Company owns or the tenant owns the tenant improvements. When we conclude that the Company is the owner of tenant improvements, rental revenue recognition begins when the tenant takes possession of the finished space, which is when such tenant improvements are substantially complete. In certain instances, when we conclude that the Company is not the owner (the tenant is the owner) of tenant improvements, rental revenue recognition begins when the tenant takes possession of or controls the space.</font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">When we conclude that the Company is the owner of tenant improvements, we record the cost to construct the tenant improvements, including costs paid for or reimbursed by the tenants, as a capital asset. For these tenant improvements, we record the amount funded by or reimbursed by the tenants as deferred revenue, which is amortized on a straight-line basis as additional rental income over the term of the related lease.</font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">When we conclude that the tenant is the owner of tenant improvements for accounting purposes, we record our contribution towards those improvements as a lease incentive, which is included in deferred leasing costs and acquisition-related intangible assets, net on our consolidated balance sheets and amortized as a reduction to rental income on a straight-line basis over the term of the lease.</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Tenant Reimbursements</font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Reimbursements from tenants, consisting of amounts due from tenants for common area maintenance, real estate taxes and other recoverable costs, are recognized as revenue in the period the recoverable costs are incurred. Tenant reimbursements are recognized and recorded on a gross basis, as we are generally the primary obligor with respect to purchasing goods and services from third-party suppliers, have discretion in selecting the supplier, and have credit risk.</font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Other Property Income</font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Other property income primarily includes amounts recorded in connection with lease terminations and tenant bankruptcy settlement payments. Lease termination fees are amortized over the remaining lease term, if applicable. If there is no remaining lease term, they are recognized when received and realized. Other property income also includes miscellaneous income from tenants, such as fees related to the restoration of leased premises to their original condition and fees for late rental payments.</font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></div>

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2014 Q4 Form 10-K Financial Statement

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2014 Q4 Form 10-K Financial Statement

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