$KRC
Kilroy Realty Corp Stock $krc

$krc Overview Financials Valuation SEC Filings Company Website

2012 Q4 Form 10-K Financial Statement

#000102599613000036 Filed on February 12, 2013

Income Statement

Concept	2012 Q4	2012 Q3	2012 Q2
Revenue	$104.6M	$98.99M	$91.58M
YoY Change	10.98%	14.57%	13.06%
Cost Of Revenue	$27.30M	$30.60M	$26.30M
YoY Change	5.41%	17.69%	27.67%
Gross Profit	$69.60M	$68.40M	$58.80M
YoY Change	1.9%	13.25%	11.79%
Gross Profit Margin	66.56%	69.1%	64.2%
Selling, General & Admin	$9.600M	$8.700M	$9.300M
YoY Change	15.66%	33.85%	24.0%
% of Gross Profit	13.79%	12.72%	15.82%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$46.20M	$46.30M	$40.60M
YoY Change	19.07%	27.9%	25.7%
% of Gross Profit	66.38%	67.69%	69.05%
Operating Expenses	$50.30M	$81.63M	$77.81M
YoY Change	13.54%	21.97%	17.82%
Operating Profit	$79.28M	$72.25M	$68.44M
YoY Change	16.97%	19.88%	20.25%
Interest Expense	-$18.80M	$19.85M	$19.16M
YoY Change	-17.54%	-13.29%	-9.77%
% of Operating Profit	-23.71%	27.48%	27.99%
Other Income/Expense, Net		-$19.52M	-$19.27M
YoY Change		-14.62%	-9.0%
Pretax Income	-$500.0K	-$2.200M	-$4.900M
YoY Change		-35.29%	122.73%
Income Tax		$0.00	$0.00
% Of Pretax Income
Net Earnings	$189.2M	$2.589M	$2.297M
YoY Change	332.78%	-81.5%	-34.03%
Net Earnings / Revenue	180.88%	2.62%	2.51%
Basic Earnings Per Share	$0.37	-$0.04	-$0.02
Diluted Earnings Per Share	$0.37	-$0.04	-$0.02
COMMON SHARES
Basic Shares Outstanding	77.34M shares	71.89M shares	68.34M shares
Diluted Shares Outstanding	77.34M shares	71.89M shares	68.34M shares

Balance Sheet

Concept	2012 Q4	2012 Q3	2012 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$17.00M	$16.00M	$18.00M
YoY Change	240.0%	6.67%	-28.0%
Cash & Equivalents	$16.70M	$16.11M	$18.11M
Short-Term Investments
Other Short-Term Assets	$10.00M	$24.00M	$46.00M
YoY Change	-16.67%	20.0%	76.92%
Inventory
Prepaid Expenses
Receivables	$125.0M	$117.0M	$118.0M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$152.0M	$157.0M	$182.0M
YoY Change	19.69%	7.53%	18.18%
LONG-TERM ASSETS
Property, Plant & Equipment	$4.001B	$3.674B	$3.471B
YoY Change	30.92%	21.82%	18.38%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$7.000M	$7.000M	$7.000M
YoY Change	16.67%	40.0%	16.67%
Other Assets	$456.0M	$378.0M	$188.0M
YoY Change	76.74%	88.06%	8.67%
Total Long-Term Assets	$4.464B	$4.059B	$3.666B
YoY Change	34.47%	25.99%	17.82%
TOTAL ASSETS
Total Short-Term Assets	$152.0M	$157.0M	$182.0M
Total Long-Term Assets	$4.464B	$4.059B	$3.666B
Total Assets	$4.616B	$4.216B	$3.848B
YoY Change	33.92%	25.19%	17.84%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$155.0M	$127.0M	$99.00M
YoY Change	89.02%	36.56%	47.76%
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	$184.0M	$156.0M	$125.0M
YoY Change	75.24%	34.48%	38.89%
LONG-TERM LIABILITIES
Long-Term Debt	$2.041B	$1.842B	$1.776B
YoY Change	12.08%	4.66%	5.71%
Other Long-Term Liabilities	$156.0M	$157.0M	$140.0M
YoY Change	30.0%	26.61%	18.64%
Total Long-Term Liabilities	$2.197B	$1.999B	$1.916B
YoY Change	13.19%	6.1%	6.56%
TOTAL LIABILITIES
Total Short-Term Liabilities	$184.0M	$156.0M	$125.0M
Total Long-Term Liabilities	$2.197B	$1.999B	$1.916B
Total Liabilities	$2.380B	$2.154B	$2.041B
YoY Change	16.35%	7.74%	2.3%
SHAREHOLDERS EQUITY
Retained Earnings
YoY Change
Common Stock	$749.0K	$747.0K	$689.0K
YoY Change	27.38%	27.69%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$2.190B	$2.019B	$1.694B
YoY Change
Total Liabilities & Shareholders Equity	$4.616B	$4.216B	$3.848B
YoY Change	33.92%	25.19%	17.84%

Cashflow Statement

Concept	2012 Q4	2012 Q3	2012 Q2
OPERATING ACTIVITIES
Net Income	$189.2M	$2.589M	$2.297M
YoY Change	332.78%	-81.5%	-34.03%
Depreciation, Depletion And Amortization	$46.20M	$46.30M	$40.60M
YoY Change	19.07%	27.9%	25.7%
Cash From Operating Activities	$33.40M	$68.70M	$29.90M
YoY Change	38.02%	19.27%	135.43%
INVESTING ACTIVITIES
Capital Expenditures	-$288.2M	-$252.6M	-$224.5M
YoY Change	82.29%	-49.57%	-1216.92%
Acquisitions
YoY Change
Other Investing Activities	$123.0M	$12.90M	$20.00M
YoY Change	59.74%	-96.63%	-105.07%
Cash From Investing Activities	-$165.2M	-$239.7M	-$204.5M
YoY Change	103.7%	103.65%	-45.38%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	132.4M	169.0M	-181.6M
YoY Change	186.58%	236.65%	-147.74%
NET CHANGE
Cash From Operating Activities	33.40M	68.70M	29.90M
Cash From Investing Activities	-165.2M	-239.7M	-204.5M
Cash From Financing Activities	132.4M	169.0M	-181.6M
Net Change In Cash	600.0K	-2.000M	-356.2M
YoY Change	-105.61%	-79.8%	-2004.81%
FREE CASH FLOW
Cash From Operating Activities	$33.40M	$68.70M	$29.90M
Capital Expenditures	-$288.2M	-$252.6M	-$224.5M
Free Cash Flow	$321.6M	$321.3M	$254.4M
YoY Change	76.41%	-42.47%	-3537.84%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2011Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	81713000	USD
CY2012Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	154734000	USD
CY2012Q4	us-gaap	Accounts Receivable Gross AccountsReceivableGross	11801000	USD
CY2011Q4	us-gaap	Accounts Receivable Gross AccountsReceivableGross	10985000	USD
CY2012Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	9220000	USD
CY2011Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	8395000	USD
CY2012Q4	us-gaap	Accumulated Distributions In Excess Of Net Income AccumulatedDistributionsInExcessOfNetIncome	129535000	USD
CY2011Q4	us-gaap	Accumulated Distributions In Excess Of Net Income AccumulatedDistributionsInExcessOfNetIncome	277450000	USD
CY2011Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	1448997000	USD
CY2012Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	2126005000	USD
CY2010	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	2121000	USD
CY2011	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	1152000	USD
CY2012	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	877000	USD
CY2010	us-gaap	Adjustments To Additional Paid In Capital Equity Component Of Convertible Debt Subsequent Adjustments AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebtSubsequentAdjustments	2694000	USD
CY2011	us-gaap	Adjustments To Additional Paid In Capital Other AdjustmentsToAdditionalPaidInCapitalOther	0	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Other AdjustmentsToAdditionalPaidInCapitalOther	0	USD
CY2010	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
CY2010	krc	Tenant Improvements Funded Directly By Tenants To Third Parties TenantImprovementsFundedDirectlyByTenantsToThirdParties	4758000	USD
CY2011	krc	Tenant Improvements Funded Directly By Tenants To Third Parties TenantImprovementsFundedDirectlyByTenantsToThirdParties	3288000	USD
CY2012	krc	Tenant Improvements Funded Directly By Tenants To Third Parties TenantImprovementsFundedDirectlyByTenantsToThirdParties	17719000	USD
CY2012	krc	Trading Days Immediately Preceding Applicable Balance Sheet Date TradingDaysImmediatelyPrecedingApplicableBalanceSheetDate	10	D
CY2011	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	5588000	USD
CY2010	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	6687000	USD
CY2012	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	8500000	USD
CY2011	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	5600000	USD
CY2010	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	7400000	USD
CY2012Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	2581000	USD
CY2011Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	2590000	USD
CY2010	us-gaap	Amortization Of Acquired Intangible Assets AmortizationOfAcquiredIntangibleAssets	1377000	USD
CY2011	us-gaap	Amortization Of Acquired Intangible Assets AmortizationOfAcquiredIntangibleAssets	1056000	USD
CY2012	us-gaap	Amortization Of Acquired Intangible Assets AmortizationOfAcquiredIntangibleAssets	-6699000	USD
CY2012	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	16600000	USD
CY2011	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	16800000	USD
CY2011	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	13540000	USD
CY2010	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	12490000	USD
CY2012	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	8433000	USD
CY2011	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	30499000	USD
CY2010	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	17987000	USD
CY2012	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	36202000	USD
CY2012Q4	us-gaap	Assets Assets	4616084000	USD
CY2011Q4	us-gaap	Assets Assets	3446795000	USD
CY2011Q4	us-gaap	Assets Held For Sale Long Lived AssetsHeldForSaleLongLived	84156000	USD
CY2012Q4	us-gaap	Assets Held For Sale Long Lived AssetsHeldForSaleLongLived	0	USD
CY2012	us-gaap	Business Acquisition Equity Interests Issued Or Issuable Number Of Shares Issued BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued	118372	shares
CY2011Q4	us-gaap	Business Acquisition Purchase Price Allocation Amortizable Intangible Assets BusinessAcquisitionPurchasePriceAllocationAmortizableIntangibleAssets	42630000	USD
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Amortizable Intangible Assets BusinessAcquisitionPurchasePriceAllocationAmortizableIntangibleAssets	59513000	USD
CY2011Q4	us-gaap	Business Acquisition Purchase Price Allocation Assets Acquired BusinessAcquisitionPurchasePriceAllocationAssetsAcquired	571208000	USD
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Assets Acquired BusinessAcquisitionPurchasePriceAllocationAssetsAcquired	732148000	USD
CY2011Q4	us-gaap	Business Acquisition Purchase Price Allocation Assets Acquired Liabilities Assumed Net BusinessAcquisitionPurchasePriceAllocationAssetsAcquiredLiabilitiesAssumedNet	511756000	USD
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Assets Acquired Liabilities Assumed Net BusinessAcquisitionPurchasePriceAllocationAssetsAcquiredLiabilitiesAssumedNet	469748000	USD
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Current Assets Cash And Cash Equivalents BusinessAcquisitionPurchasePriceAllocationCurrentAssetsCashAndCashEquivalents	3973000	USD
CY2011Q4	us-gaap	Business Acquisition Purchase Price Allocation Current Liabilities Other Liabilities BusinessAcquisitionPurchasePriceAllocationCurrentLiabilitiesOtherLiabilities	4515000	USD
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Current Liabilities Other Liabilities BusinessAcquisitionPurchasePriceAllocationCurrentLiabilitiesOtherLiabilities	6348000	USD
CY2011Q4	us-gaap	Business Acquisition Purchase Price Allocation Land BusinessAcquisitionPurchasePriceAllocationLand	61910000	USD
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Land BusinessAcquisitionPurchasePriceAllocationLand	117639000	USD
CY2011Q4	us-gaap	Business Acquisition Purchase Price Allocation Liabilities Assumed BusinessAcquisitionPurchasePriceAllocationLiabilitiesAssumed	59452000	USD
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Liabilities Assumed BusinessAcquisitionPurchasePriceAllocationLiabilitiesAssumed	262400000	USD
CY2011Q4	us-gaap	Business Acquisition Purchase Price Allocation Noncurrent Liabilities Long Term Debt BusinessAcquisitionPurchasePriceAllocationNoncurrentLiabilitiesLongTermDebt	30997000	USD
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Noncurrent Liabilities Long Term Debt BusinessAcquisitionPurchasePriceAllocationNoncurrentLiabilitiesLongTermDebt	221032000	USD
CY2011Q4	us-gaap	Business Acquisition Purchase Price Allocation Tangible Assets BusinessAcquisitionPurchasePriceAllocationTangibleAssets	464108000	USD
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Tangible Assets BusinessAcquisitionPurchasePriceAllocationTangibleAssets	545510000	USD
	us-gaap	Business Combination Pro Forma Information Earnings Or Loss Of Acquiree Since Acquisition Date Actual BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual	3412000	USD
	us-gaap	Business Combination Pro Forma Information Revenue Of Acquiree Since Acquisition Date Actual BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual	18943000	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
CY2009Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	9883000	USD
CY2010Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	14840000	USD
CY2012	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	11923000	USD
CY2010	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	4957000	USD
CY2011	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-10063000	USD
CY2011Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2012Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2012	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.4
CY2011	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.4
CY2010	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.4
CY2012Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2011Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2011Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	150000000	shares
CY2012Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	150000000	shares
CY2012Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	74926981	shares
CY2011Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	58819717	shares
CY2012Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	74926981	shares
CY2011Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	58819717	shares
CY2011Q4	us-gaap	Common Stock Value CommonStockValue	588000	USD
CY2012Q4	us-gaap	Common Stock Value CommonStockValue	749000	USD
CY2012	us-gaap	Concentration Risk Credit Risk Uninsured Deposits ConcentrationRiskCreditRiskUninsuredDeposits	We have deposited cash with financial institutions that is insured by the Federal Deposit Insurance Corporation (“FDIC”) up to $250,000 per institution. As of December 31, 2012 and 2011, we had cash accounts in excess of FDIC insured limits.
CY2012	us-gaap	Concentration Risk Customer ConcentrationRiskCustomer	As of December 31, 2012, our 15 largest tenants represented approximately 34.1% of total annualized base rental revenues.
CY2012	us-gaap	Concentration Risk Geographic ConcentrationRiskGeographic	All of our properties and all of our business is currently conducted in the state of California with the exception of the ownership and operation of ten office properties located in the state of Washington. The ability of the tenants to honor the terms of their leases is dependent upon the economic, regulatory, and social factors affecting the communities in which the tenants operate.
CY2012	us-gaap	Concentration Risk Percentage1 ConcentrationRiskPercentage1	0.341
CY2012Q4	us-gaap	Convertible Notes Payable ConvertibleNotesPayable	163944000	USD
CY2011Q4	us-gaap	Convertible Notes Payable ConvertibleNotesPayable	306892000	USD
CY2010	us-gaap	Cost Of Real Estate Revenue CostOfRealEstateRevenue	51169000	USD
CY2012	us-gaap	Cost Of Real Estate Revenue CostOfRealEstateRevenue	79357000	USD
CY2011	us-gaap	Cost Of Real Estate Revenue CostOfRealEstateRevenue	66821000	USD
CY2012Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	36000	USD
CY2011Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	18368000	USD
CY2012Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	18971000	USD
CY2012Q4	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	115418000	USD
CY2011Q4	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	101142000	USD
CY2011Q4	us-gaap	Deferred Revenue DeferredRevenue	1310000	USD
CY2012Q4	us-gaap	Deferred Revenue DeferredRevenue	2314000	USD
CY2011	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	600000	USD
CY2012	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	700000	USD
CY2010	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	500000	USD
CY2012	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.10
CY2012	us-gaap	Depreciation And Amortization DepreciationAndAmortization	162917000	USD
CY2011	us-gaap	Depreciation And Amortization DepreciationAndAmortization	124928000	USD
CY2010	us-gaap	Depreciation And Amortization DepreciationAndAmortization	90836000	USD
CY2011	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	135467000	USD
CY2012	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	168687000	USD
CY2010	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	102898000	USD
CY2011	us-gaap	Depreciation Nonproduction DepreciationNonproduction	1130000	USD
CY2010	us-gaap	Depreciation Nonproduction DepreciationNonproduction	911000	USD
CY2012	us-gaap	Depreciation Nonproduction DepreciationNonproduction	1213000	USD
CY2010	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax	949000	USD
CY2012	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax	259245000	USD
CY2011	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax	51587000	USD
CY2012	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax	12409000	USD
CY2010	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax	19364000	USD
CY2011	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax	19630000	USD
CY2012	us-gaap	Dividends Common Stock DividendsCommonStock	104393000	USD
CY2010	us-gaap	Dividends Common Stock DividendsCommonStock	73455000	USD
CY2011	us-gaap	Dividends Common Stock DividendsCommonStock	83423000	USD
CY2011Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	22692000	USD
CY2012Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	28924000	USD
CY2012	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.56
CY2010	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.07
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.87
CY2012Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.06
CY2011Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.01
CY2011Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.68
CY2011Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.01
CY2012Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.02
CY2012Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.04
CY2012Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.49
CY2011Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.17
CY2011	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.87
CY2010	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.07
CY2012	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.56
CY2011Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.01
CY2012Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.02
CY2011Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.68
CY2012Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.06
CY2011Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.17
CY2012Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.04
CY2012Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.45
CY2011Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.01
CY2010	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	1400000	USD
CY2011	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	1100000	USD
CY2012	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	900000	USD
CY2012Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	25900000	USD
CY2012	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y7M
CY2012	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2011	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2010	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-4564000	USD
CY2011	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	28148000	USD
CY2012	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	36188000	USD
CY2010	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	27963000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	-468000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	-545000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	-383000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	5447000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-427000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-3728000	USD
CY2011Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-1071000	USD
CY2011Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-3391000	USD
CY2012Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-665000	USD
CY2011Q1	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	750000	USD
CY2012Q4	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	3911000	USD
CY2012Q1	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	2165000	USD
CY2011Q4	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-16000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.35
CY2012	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.24
CY2010	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.33
CY2010	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.33
CY2012	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.24
CY2011	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.35
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	71217000	USD
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	271654000	USD
CY2010	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	20313000	USD
CY2012Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	189720000	USD
CY2012Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	3187000	USD
CY2012Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	2241000	USD
CY2011Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	44876000	USD
CY2011Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	4117000	USD
CY2011Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	17681000	USD
CY2012Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	76506000	USD
CY2011Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	4543000	USD
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	6570000	USD
CY2010	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	646000	USD
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	2019000	USD
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	1.22
CY2010	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.40
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	3.80
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	1.22
CY2010	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.40
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	3.80
CY2012	us-gaap	Marketable Securities Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesGainLossExcludingOtherThanTemporaryImpairments	723000	USD
CY2010	us-gaap	Marketable Securities Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesGainLossExcludingOtherThanTemporaryImpairments	435000	USD
CY2011	us-gaap	Marketable Securities Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesGainLossExcludingOtherThanTemporaryImpairments	-153000	USD
CY2011	us-gaap	Increase Decrease In Operating Assets IncreaseDecreaseInOperatingAssets	5434000	USD
CY2012	us-gaap	Increase Decrease In Operating Assets IncreaseDecreaseInOperatingAssets	1297000	USD
CY2010	us-gaap	Increase Decrease In Operating Assets IncreaseDecreaseInOperatingAssets	9065000	USD
CY2011	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	2779000	USD
CY2012	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	17320000	USD
CY2010	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	5509000	USD
CY2011	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	-1103000	USD
CY2012	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	18359000	USD
CY2010	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	-3120000	USD
CY2012	us-gaap	Interest Expense InterestExpense	79114000	USD
CY2011	us-gaap	Interest Expense InterestExpense	85785000	USD
CY2010	us-gaap	Interest Expense InterestExpense	55082000	USD
CY2012	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	17657000	USD
CY2011	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	7615000	USD
CY2010	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	7697000	USD
CY2012	us-gaap	Interest Paid Net InterestPaidNet	71633000	USD
CY2011	us-gaap	Interest Paid Net InterestPaidNet	68280000	USD
CY2010	us-gaap	Interest Paid Net InterestPaidNet	45986000	USD
CY2012Q4	us-gaap	Investment Building And Building Improvements InvestmentBuildingAndBuildingImprovements	3335026000	USD
CY2011Q4	us-gaap	Investment Building And Building Improvements InvestmentBuildingAndBuildingImprovements	2830310000	USD
CY2011Q4	us-gaap	Land Land	537574000	USD
CY2012Q4	us-gaap	Land Land	612714000	USD
CY2012Q4	us-gaap	Land Available For Development LandAvailableForDevelopment	809654000	USD
CY2011Q4	us-gaap	Land Available For Development LandAvailableForDevelopment	430806000	USD
CY2010	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	984000	USD
CY2011	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	1779000	USD
CY2012	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	3168000	USD
CY2011Q4	us-gaap	Liabilities Liabilities	2045675000	USD
CY2012Q4	us-gaap	Liabilities Liabilities	2380151000	USD
CY2011Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	3446795000	USD
CY2012Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	4616084000	USD
CY2011Q4	us-gaap	Liabilities Of Assets Held For Sale LiabilitiesOfAssetsHeldForSale	13286000	USD
CY2012Q4	us-gaap	Liabilities Of Assets Held For Sale LiabilitiesOfAssetsHeldForSale	0	USD
CY2011Q4	us-gaap	Limited Partners Capital Account Units Outstanding LimitedPartnersCapitalAccountUnitsOutstanding	1718131	shares
CY2012Q4	us-gaap	Limited Partners Capital Account Units Outstanding LimitedPartnersCapitalAccountUnitsOutstanding	1826503	shares
CY2011Q4	us-gaap	Line Of Credit LineOfCredit	182000000	USD
CY2012Q4	us-gaap	Line Of Credit LineOfCredit	185000000	USD
CY2012Q4	us-gaap	Minority Interest MinorityInterest	46303000	USD
CY2011Q4	us-gaap	Minority Interest MinorityInterest	33765000	USD
CY2010	us-gaap	Minority Interest In Net Income Loss Operating Partnerships MinorityInterestInNetIncomeLossOperatingPartnerships	178000	USD
CY2012	us-gaap	Minority Interest In Net Income Loss Operating Partnerships MinorityInterestInNetIncomeLossOperatingPartnerships	6187000	USD
CY2011	us-gaap	Minority Interest In Net Income Loss Operating Partnerships MinorityInterestInNetIncomeLossOperatingPartnerships	1474000	USD
CY2012Q4	us-gaap	Minority Interest Ownership Percentage By Noncontrolling Owners MinorityInterestOwnershipPercentageByNoncontrollingOwners	0.024
CY2011Q4	us-gaap	Minority Interest Ownership Percentage By Noncontrolling Owners MinorityInterestOwnershipPercentageByNoncontrollingOwners	0.028
CY2012Q4	us-gaap	Minority Interest Ownership Percentage By Parent MinorityInterestOwnershipPercentageByParent	0.976
CY2011Q4	us-gaap	Minority Interest Ownership Percentage By Parent MinorityInterestOwnershipPercentageByParent	0.972
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	485964000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	537705000	USD
CY2010	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	586904000	USD
CY2010	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-701774000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-706506000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-634283000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	180724000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	138256000	USD
CY2010	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	119827000	USD
CY2010	us-gaap	Net Income Loss NetIncomeLoss	19708000	USD
CY2011	us-gaap	Net Income Loss NetIncomeLoss	66015000	USD
CY2012	us-gaap	Net Income Loss NetIncomeLoss	270914000	USD
CY2011Q4	us-gaap	Net Income Loss NetIncomeLoss	43706000	USD
CY2011Q1	us-gaap	Net Income Loss NetIncomeLoss	4833000	USD
CY2012Q1	us-gaap	Net Income Loss NetIncomeLoss	76876000	USD
CY2012Q2	us-gaap	Net Income Loss NetIncomeLoss	2297000	USD
CY2012Q3	us-gaap	Net Income Loss NetIncomeLoss	2589000	USD
CY2012Q4	us-gaap	Net Income Loss NetIncomeLoss	189152000	USD
CY2011Q3	us-gaap	Net Income Loss NetIncomeLoss	13994000	USD
CY2011Q2	us-gaap	Net Income Loss NetIncomeLoss	3482000	USD
CY2011	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	50819000	USD
CY2010	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	4512000	USD
CY2012	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	249826000	USD
CY2012Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	67540000	USD
CY2011Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	39907000	USD
CY2011Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	10195000	USD
CY2011Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1034000	USD
CY2012Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	185839000	USD
CY2012Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-2753000	USD
CY2011Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-317000	USD
CY2012Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-800000	USD
CY2012Q4	us-gaap	Net Rentable Area NetRentableArea	13249780	sqft
CY2012	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	221032000	USD
CY2011	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	30042000	USD
CY2010	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	51079000	USD
CY2011	us-gaap	Noncash Or Part Noncash Acquisition Other Liabilities Assumed1 NoncashOrPartNoncashAcquisitionOtherLiabilitiesAssumed1	4515000	USD
CY2010	us-gaap	Noncash Or Part Noncash Acquisition Other Liabilities Assumed1 NoncashOrPartNoncashAcquisitionOtherLiabilitiesAssumed1	10840000	USD
CY2012	us-gaap	Noncash Or Part Noncash Acquisition Other Liabilities Assumed1 NoncashOrPartNoncashAcquisitionOtherLiabilitiesAssumed1	37535000	USD
CY2011	us-gaap	Noncontrolling Interest Increase From Business Combination NoncontrollingInterestIncreaseFromBusinessCombination	0	USD
CY2010	us-gaap	Noncontrolling Interest Increase From Business Combination NoncontrollingInterestIncreaseFromBusinessCombination	0	USD
CY2012	us-gaap	Noncontrolling Interest Increase From Business Combination NoncontrollingInterestIncreaseFromBusinessCombination	5604000	USD
CY2010	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-58682000	USD
CY2011	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-85214000	USD
CY2012	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-78266000	USD
CY2011	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
CY2012	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
CY2011	us-gaap	Operating Expenses OperatingExpenses	256143000	USD
CY2010	us-gaap	Operating Expenses OperatingExpenses	196739000	USD
CY2012	us-gaap	Operating Expenses OperatingExpenses	321199000	USD
CY2012Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	68437000	USD
CY2011Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	60268000	USD
CY2011Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	56910000	USD
CY2011Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	67777000	USD
CY2012Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	72251000	USD
CY2012Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	67791000	USD
CY2012Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	79276000	USD
CY2011Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	53660000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	176072000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	3685000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	3095000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	3095000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	3095000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	3095000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	160007000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Receivable OperatingLeasesFutureMinimumPaymentsReceivable	2158502000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Receivable Current OperatingLeasesFutureMinimumPaymentsReceivableCurrent	360592000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Five Years OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears	230299000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Four Years OperatingLeasesFutureMinimumPaymentsReceivableInFourYears	273241000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Three Years OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears	306262000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Two Years OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears	346840000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Receivable Thereafter OperatingLeasesFutureMinimumPaymentsReceivableThereafter	641268000	USD
CY2010	us-gaap	Operating Leases Income Statement Lease Revenue OperatingLeasesIncomeStatementLeaseRevenue	235304000	USD
CY2012	us-gaap	Operating Leases Income Statement Lease Revenue OperatingLeasesIncomeStatementLeaseRevenue	369516000	USD
CY2011	us-gaap	Operating Leases Income Statement Lease Revenue OperatingLeasesIncomeStatementLeaseRevenue	307118000	USD
CY2012	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-1751000	USD
CY2010	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	543000	USD
CY2011	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-630000	USD
CY2011	us-gaap	Other Preferred Stock Dividends And Adjustments OtherPreferredStockDividendsAndAdjustments	5588000	USD
CY2010	us-gaap	Other Preferred Stock Dividends And Adjustments OtherPreferredStockDividendsAndAdjustments	5588000	USD
CY2012	us-gaap	Other Preferred Stock Dividends And Adjustments OtherPreferredStockDividendsAndAdjustments	3541000	USD
CY2010	us-gaap	Other Real Estate Revenue OtherRealEstateRevenue	1694000	USD
CY2011	us-gaap	Other Real Estate Revenue OtherRealEstateRevenue	6534000	USD
CY2012	us-gaap	Other Real Estate Revenue OtherRealEstateRevenue	3087000	USD
CY2012	us-gaap	Participating Securities Distributed And Undistributed Earnings ParticipatingSecuritiesDistributedAndUndistributedEarnings	1602000	USD
CY2011	us-gaap	Participating Securities Distributed And Undistributed Earnings ParticipatingSecuritiesDistributedAndUndistributedEarnings	1309000	USD
CY2010	us-gaap	Participating Securities Distributed And Undistributed Earnings ParticipatingSecuritiesDistributedAndUndistributedEarnings	1151000	USD
CY2012	us-gaap	Payments For Proceeds From Deposit On Loan PaymentsForProceedsFromDepositOnLoan	0	USD
CY2011	us-gaap	Payments For Proceeds From Deposit On Loan PaymentsForProceedsFromDepositOnLoan	-2859000	USD
CY2010	us-gaap	Payments For Proceeds From Deposit On Loan PaymentsForProceedsFromDepositOnLoan	605000	USD
CY2011	us-gaap	Payments For Proceeds From Deposits On Real Estate Acquisitions PaymentsForProceedsFromDepositsOnRealEstateAcquisitions	5000000	USD
CY2010	us-gaap	Payments For Proceeds From Deposits On Real Estate Acquisitions PaymentsForProceedsFromDepositsOnRealEstateAcquisitions	0	USD
CY2012	us-gaap	Payments For Proceeds From Deposits On Real Estate Acquisitions PaymentsForProceedsFromDepositsOnRealEstateAcquisitions	-5000000	USD
CY2010	us-gaap	Payments For Repurchase Of Redeemable Preferred Stock PaymentsForRepurchaseOfRedeemablePreferredStock	0	USD
CY2011	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	80005000	USD
CY2012	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	97386000	USD
CY2010	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	69224000	USD
CY2011	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	9060000	USD
CY2010	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	14912000	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
CY2011	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1152000	USD
CY2010	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	3417000	USD
CY2010	us-gaap	Payments To Acquire Other Real Estate PaymentsToAcquireOtherRealEstate	0	USD
CY2011	us-gaap	Payments To Acquire Other Real Estate PaymentsToAcquireOtherRealEstate	0	USD
CY2012	us-gaap	Payments To Acquire Other Real Estate PaymentsToAcquireOtherRealEstate	333942000	USD
CY2010	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	637620000	USD
CY2012	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	454841000	USD
CY2011	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	603301000	USD
CY2011	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	28517000	USD
CY2010	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	21832000	USD
CY2012	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	83310000	USD
CY2012	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	21088000	USD
CY2010	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	15196000	USD
CY2011	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	15196000	USD
CY2012Q4	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	3313000	USD
CY2011Q4	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	3799000	USD
CY2012Q2	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	3097000	USD
CY2011Q2	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	3799000	USD
CY2012Q1	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	9336000	USD
CY2011Q1	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	3799000	USD
CY2012Q3	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	5342000	USD
CY2011Q3	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	3799000	USD
CY2011	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	15196000	USD
CY2012	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	14108000	USD
CY2012Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2011Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2012	us-gaap	Preferred Stock Redemption Premium PreferredStockRedemptionPremium	6980000	USD
CY2011	us-gaap	Preferred Stock Redemption Premium PreferredStockRedemptionPremium	0	USD
CY2010	us-gaap	Preferred Stock Redemption Premium PreferredStockRedemptionPremium	0	USD
CY2011Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	30000000	shares
CY2012Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	30000000	shares
CY2012Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2011Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2011Q4	us-gaap	Prepaid Expense And Other Assets PrepaidExpenseAndOtherAssets	12199000	USD
CY2012Q4	us-gaap	Prepaid Expense And Other Assets PrepaidExpenseAndOtherAssets	9949000	USD
CY2010	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	10679000	USD
CY2011	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	0	USD
CY2012	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	0	USD
CY2012	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	1751000	USD
CY2010	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	0	USD
CY2011	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	0	USD
CY2012	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	672102000	USD
CY2010	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	299847000	USD
CY2011	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	233312000	USD
CY2010	us-gaap	Proceeds From Issuance Of Redeemable Preferred Stock ProceedsFromIssuanceOfRedeemablePreferredStock	0	USD
CY2012	us-gaap	Proceeds From Issuance Of Redeemable Preferred Stock ProceedsFromIssuanceOfRedeemablePreferredStock	192411000	USD
CY2011	us-gaap	Proceeds From Issuance Of Redeemable Preferred Stock ProceedsFromIssuanceOfRedeemablePreferredStock	0	USD
CY2012	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	97000000	USD
CY2011	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	135000000	USD
CY2010	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	71000000	USD
CY2012	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	150000000	USD
CY2011	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	324476000	USD
CY2010	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	572672000	USD
CY2011	us-gaap	Proceeds From Legal Settlements ProceedsFromLegalSettlements	1000000	USD
CY2010	us-gaap	Proceeds From Legal Settlements ProceedsFromLegalSettlements	3600000	USD
CY2011	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	550000000	USD
CY2010	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	660000000	USD
CY2012	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	704000000	USD
CY2011	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	64171000	USD
CY2010	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	14978000	USD
CY2012	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	263572000	USD
CY2011	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	395000	USD
CY2012	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	129000	USD
CY2010	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	83000	USD
CY2012	us-gaap	Profit Loss ProfitLoss	277101000	USD
CY2010	us-gaap	Profit Loss ProfitLoss	19886000	USD
CY2011	us-gaap	Profit Loss ProfitLoss	67489000	USD
CY2012Q4	us-gaap	Profit Loss ProfitLoss	193631000	USD
CY2011Q1	us-gaap	Profit Loss ProfitLoss	4867000	USD
CY2012Q3	us-gaap	Profit Loss ProfitLoss	2522000	USD
CY2011Q4	us-gaap	Profit Loss ProfitLoss	44860000	USD
CY2011Q3	us-gaap	Profit Loss ProfitLoss	14290000	USD
CY2012Q2	us-gaap	Profit Loss ProfitLoss	2277000	USD
CY2012Q1	us-gaap	Profit Loss ProfitLoss	78671000	USD
CY2011Q2	us-gaap	Profit Loss ProfitLoss	3472000	USD
CY2010	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	65000	USD
CY2012	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	153000	USD
CY2011	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	781000	USD
CY2010Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	672429000	USD
CY2012Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	756515000	USD
CY2011Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	742503000	USD
CY2009Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	605976000	USD
CY2011	us-gaap	Real Estate Accumulated Depreciation Depreciation Expense RealEstateAccumulatedDepreciationDepreciationExpense	105982000	USD
CY2012	us-gaap	Real Estate Accumulated Depreciation Depreciation Expense RealEstateAccumulatedDepreciationDepreciationExpense	125906000	USD
CY2010	us-gaap	Real Estate Accumulated Depreciation Depreciation Expense RealEstateAccumulatedDepreciationDepreciationExpense	86288000	USD
CY2010	us-gaap	Real Estate Accumulated Depreciation Other Deductions RealEstateAccumulatedDepreciationOtherDeductions	-16286000	USD
CY2012	us-gaap	Real Estate Accumulated Depreciation Other Deductions RealEstateAccumulatedDepreciationOtherDeductions	-2097000	USD
CY2011	us-gaap	Real Estate Accumulated Depreciation Other Deductions RealEstateAccumulatedDepreciationOtherDeductions	-9851000	USD
CY2011	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	-11152000	USD
CY2012	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	-109797000	USD
CY2010	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	-3549000	USD
CY2012Q4	us-gaap	Real Estate And Accumulated Depreciation Accumulated Depreciation RealEstateAndAccumulatedDepreciationAccumulatedDepreciation	756515000	USD
CY2012Q4	us-gaap	Real Estate And Accumulated Depreciation Amount Of Encumbrances RealEstateAndAccumulatedDepreciationAmountOfEncumbrances	553919000	USD
CY2012Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements	3623047000	USD
CY2012Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Land RealEstateAndAccumulatedDepreciationCarryingAmountOfLand	1134347000	USD
CY2012Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements RealEstateAndAccumulatedDepreciationCarryingAmountOfLandAndBuildingsAndImprovements	4757394000	USD
CY2012Q4	us-gaap	Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements	913386000	USD
CY2012Q4	us-gaap	Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements	2734988000	USD
CY2012Q4	us-gaap	Real Estate And Accumulated Depreciation Initial Cost Of Land RealEstateAndAccumulatedDepreciationInitialCostOfLand	1109020000	USD
CY2010	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	-17456000	USD
CY2011	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	-21052000	USD
CY2012	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	-264533000	USD
CY2011	us-gaap	Real Estate Improvements RealEstateImprovements	84736000	USD
CY2010	us-gaap	Real Estate Improvements RealEstateImprovements	86754000	USD
CY2012	us-gaap	Real Estate Improvements RealEstateImprovements	207345000	USD
CY2011Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	742503000	USD
CY2012Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	756515000	USD
CY2011Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	3798690000	USD
CY2012Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	4757394000	USD
CY2010Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	3216871000	USD
CY2009Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	2520083000	USD
CY2011Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	3056187000	USD
CY2012Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	4000879000	USD
CY2010	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	643776000	USD
CY2011	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	617923000	USD
CY2012	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	1023384000	USD
CY2011	us-gaap	Real Estate Other Deductions RealEstateOtherDeductions	-9851000	USD
CY2010	us-gaap	Real Estate Other Deductions RealEstateOtherDeductions	-16286000	USD
CY2012	us-gaap	Real Estate Other Deductions RealEstateOtherDeductions	-7492000	USD
CY2010	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	254994000	USD
CY2012	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	404912000	USD
CY2011	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	337629000	USD
CY2011Q1	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	76003000	USD
CY2012Q2	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	97111000	USD
CY2012Q1	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	92397000	USD
CY2011Q4	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	94226000	USD
CY2011Q3	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	86398000	USD
CY2012Q4	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	111111000	USD
CY2011Q2	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	81002000	USD
CY2012Q3	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	104293000	USD
CY2011	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	29633000	USD
CY2012	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	34479000	USD
CY2010	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	23474000	USD
CY2012	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	672102000	USD
CY2012Q4	us-gaap	Redeemable Noncontrolling Interest Equity Common Fair Value RedeemableNoncontrollingInterestEquityCommonFairValue	85400000	USD
CY2011Q4	us-gaap	Redeemable Noncontrolling Interest Equity Common Fair Value RedeemableNoncontrollingInterestEquityCommonFairValue	64700000	USD
CY2011Q4	us-gaap	Redeemable Noncontrolling Interest Equity Preferred Carrying Amount RedeemableNoncontrollingInterestEquityPreferredCarryingAmount	73638000	USD
CY2012Q4	us-gaap	Redeemable Noncontrolling Interest Equity Preferred Carrying Amount RedeemableNoncontrollingInterestEquityPreferredCarryingAmount	0	USD
CY2011	us-gaap	Redeemable Preferred Stock Dividends RedeemablePreferredStockDividends	9608000	USD
CY2012	us-gaap	Redeemable Preferred Stock Dividends RedeemablePreferredStockDividends	10567000	USD
CY2010	us-gaap	Redeemable Preferred Stock Dividends RedeemablePreferredStockDividends	9608000	USD
CY2012	us-gaap	Repayments Of Convertible Debt RepaymentsOfConvertibleDebt	148000000	USD
CY2011	us-gaap	Repayments Of Convertible Debt RepaymentsOfConvertibleDebt	0	USD
CY2010	us-gaap	Repayments Of Convertible Debt RepaymentsOfConvertibleDebt	0	USD
CY2011	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	527000000	USD
CY2012	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	701000000	USD
CY2010	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	598000000	USD
CY2011	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	127665000	USD
CY2012	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	106262000	USD
CY2010	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	103247000	USD
CY2012	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	0	USD
CY2010	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	61000000	USD
CY2011	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	0	USD
CY2012Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	247544000	USD
CY2011Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	358000	USD
CY2012	us-gaap	Revenue Recognition Leases Operating RevenueRecognitionLeasesOperating	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:8px;text-align:justify;text-indent:20px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Revenue Recognition</font></div><div style="line-height:120%;padding-top:8px;text-align:justify;text-indent:20px;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:</font></div><div style="line-height:120%;text-align:justify;font-size:5pt;"><font style="font-family:inherit;font-size:5pt;"> </font></div><table cellpadding="0" cellspacing="0" style="padding-top:8px;font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" 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:24px;"><font style="font-family:inherit;font-size:10pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">the agreement has been fully executed and delivered;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="padding-top:8px;font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" 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:24px;"><font style="font-family:inherit;font-size:10pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">services have been rendered;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="padding-top:8px;font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" 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:24px;"><font style="font-family:inherit;font-size:10pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">the amount is fixed or determinable; and</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="padding-top:8px;font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" 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:24px;"><font style="font-family:inherit;font-size:10pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">the collectability of the amount is reasonably assured.</font></div></td></tr></table><div style="line-height:120%;padding-top:8px;text-align:justify;text-indent:18px;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, management evaluates whether we are or the tenant is the owner of tenant improvements for accounting purposes. When management concludes that we are 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 management concludes that we are 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%;padding-top:8px;text-align:justify;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">When management concludes that we are the owner of tenant improvements for accounting purposes, management records the cost to construct the tenant improvements as a capital asset. In addition, management records the cost of certain tenant improvements paid for or reimbursed by tenants as capital assets when management concludes that we are the owner of such tenant improvements. For these tenant improvements, management records the amount funded or reimbursed by 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%;padding-top:8px;text-align:justify;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">When management concludes that the tenant is the owner of tenant improvements for accounting purposes, management records our contribution towards those improvements as a lease incentive, which is included in deferred leasing costs and acquisition-related intangibles, 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%;padding-top:8px;text-align:justify;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Tenant Reimbursements</font></div><div style="line-height:120%;padding-top:8px;text-align:justify;text-indent:18px;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%;padding-top:8px;text-align:justify;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Other Property Income</font></div><div style="line-height:120%;padding-top:8px;text-align:justify;text-indent:18px;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>
CY2011	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	233312000	USD
CY2011	us-gaap	Stock Issued During Period Value Conversion Of Units StockIssuedDuringPeriodValueConversionOfUnits	0	USD
CY2012Q4	us-gaap	Secured Debt SecuredDebt	561096000	USD
CY2011Q4	us-gaap	Secured Debt SecuredDebt	351825000	USD
CY2011	us-gaap	Share Based Compensation ShareBasedCompensation	4482000	USD
CY2012	us-gaap	Share Based Compensation ShareBasedCompensation	7670000	USD
CY2010	us-gaap	Share Based Compensation ShareBasedCompensation	6031000	USD
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	639487	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	0	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	10000	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	1550000	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	7300000	USD
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1540000	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	5000	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	42.61
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	25.77
CY2012	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	25.77
CY2012	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	42.61
CY2012	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	42.61
CY2012	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P9Y2M12D
CY2011	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	0	shares
CY2012	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	5000	shares
CY2012	us-gaap	Stock Issued During Period Value Conversion Of Units StockIssuedDuringPeriodValueConversionOfUnits	0	USD
CY2010	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	299847000	USD
CY2012	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	129000	USD
CY2010	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	83000	USD
CY2011	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	395000	USD
CY2012	us-gaap	Stock Redeemed Or Called During Period Value StockRedeemedOrCalledDuringPeriodValue	126500000	USD
CY2012Q2	us-gaap	Stock Redeemed Or Called During Period Value StockRedeemedOrCalledDuringPeriodValue	126500000	USD
CY2012Q4	us-gaap	Stock Repurchase Program Remaining Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased	988025	shares
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	2189630000	USD
CY2011Q4	us-gaap	Stockholders Equity StockholdersEquity	1293717000	USD
CY2012Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2235933000	USD
CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1327482000	USD
CY2009Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	883838000	USD
CY2010Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1117730000	USD
CY2010	us-gaap	Straight Line Rent StraightLineRent	13616000	USD
CY2012	us-gaap	Straight Line Rent StraightLineRent	21530000	USD
CY2011	us-gaap	Straight Line Rent StraightLineRent	21331000	USD
CY2011	us-gaap	Tenant Reimbursements TenantReimbursements	23977000	USD
CY2012	us-gaap	Tenant Reimbursements TenantReimbursements	32309000	USD
CY2010	us-gaap	Tenant Reimbursements TenantReimbursements	17996000	USD
CY2012Q4	us-gaap	Trading Securities TradingSecurities	7435000	USD
CY2011Q4	us-gaap	Trading Securities TradingSecurities	5691000	USD
CY2012Q4	us-gaap	Unsecured Debt UnsecuredDebt	1130895000	USD
CY2011Q4	us-gaap	Unsecured Debt UnsecuredDebt	980569000	USD
CY2012Q4	krc	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Prepaid Expenses And Other Assets BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPrepaidExpensesAndOtherAssets	184000	USD
CY2012Q4	krc	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Restricted Cash BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRestrictedCash	5329000	USD
CY2011Q4	krc	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Undeveloped Land And Construction In Process BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedUndevelopedLandAndConstructionInProcess	2560000	USD
CY2012Q4	krc	Commitments For Contracts And Executed Leases Operating And Redevelopment And Development Properties CommitmentsForContractsAndExecutedLeasesOperatingAndRedevelopmentAndDevelopmentProperties	601800000	USD
CY2011	krc	Common Stockholders And Unitholders Dividends And Distributions Declared But Not Paid CommonStockholdersAndUnitholdersDividendsAndDistributionsDeclaredButNotPaid	21188000	USD
CY2012	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:8px;text-align:justify;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The preparation of financial statements in conformity with GAAP requires management 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>
CY2011Q4	us-gaap	Variable Interest Entity Consolidated Carrying Amount Assets VariableInterestEntityConsolidatedCarryingAmountAssets	108500000	USD
CY2012Q4	us-gaap	Variable Interest Entity Consolidated Carrying Amount Assets VariableInterestEntityConsolidatedCarryingAmountAssets	337000000	USD
CY2012Q4	us-gaap	Variable Interest Entity Consolidated Carrying Amount Liabilities VariableInterestEntityConsolidatedCarryingAmountLiabilities	111100000	USD
CY2011Q4	us-gaap	Variable Interest Entity Consolidated Carrying Amount Liabilities VariableInterestEntityConsolidatedCarryingAmountLiabilities	7300000	USD
CY2011	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
CY2012	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
CY2010	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
CY2010	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	49497487	shares
CY2011	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	56717121	shares
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	56717121	shares
CY2010	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	49497487	shares
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	69639623	shares
CY2012Q4	krc	Accrued Distribution Payable AccruedDistributionPayable	700000	USD
CY2011	krc	Acquisition Related Expenses AcquisitionRelatedExpenses	4053000	USD
CY2010	krc	Acquisition Related Expenses AcquisitionRelatedExpenses	2248000	USD
CY2012	krc	Acquisition Related Expenses AcquisitionRelatedExpenses	4937000	USD
CY2012Q4	krc	Acquisition Related Intangible Liabilities Net AcquisitionRelatedIntangibleLiabilitiesNet	59129000	USD
CY2011Q4	krc	Acquisition Related Intangible Liabilities Net AcquisitionRelatedIntangibleLiabilitiesNet	36587000	USD
CY2012Q4	krc	Allowance For Deferred Rent Receivables AllowanceForDeferredRentReceivables	2607000	USD
CY2011Q4	krc	Allowance For Deferred Rent Receivables AllowanceForDeferredRentReceivables	3406000	USD
CY2012	krc	Annual Ground Lease Rental Obligations AnnualGroundLeaseRentalObligations	1000000	USD
CY2012	krc	At Market Stock Offering Program Aggregate Value Of Common Stock AtMarketStockOfferingProgramAggregateValueOfCommonStock	200000000	USD
CY2012	krc	At Market Stock Offering Program Remained Available For Issuance AtMarketStockOfferingProgramRemainedAvailableForIssuance	150000000	USD
CY2012	krc	Average Trading Price Of Companys Stock AverageTradingPriceOfCompanysStock	45.72
CY2011	krc	Average Trading Price Of Companys Stock AverageTradingPriceOfCompanysStock	37.27
CY2010	krc	Bad Debt Expense Recoveries Of Bad Debt BadDebtExpenseRecoveriesOfBadDebt	1000000	USD
CY2011Q4	krc	Business Acquisition Purchase Price Allocation Acquisition Related Intangible Liabilities BusinessAcquisitionPurchasePriceAllocationAcquisitionRelatedIntangibleLiabilities	23940000	USD
CY2012Q4	krc	Business Acquisition Purchase Price Allocation Acquisition Related Intangible Liabilities BusinessAcquisitionPurchasePriceAllocationAcquisitionRelatedIntangibleLiabilities	35020000	USD
CY2012	krc	Common Stockholders And Unitholders Dividends And Distributions Declared But Not Paid CommonStockholdersAndUnitholdersDividendsAndDistributionsDeclaredButNotPaid	26863000	USD
CY2010	krc	Common Stockholders And Unitholders Dividends And Distributions Declared But Not Paid CommonStockholdersAndUnitholdersDividendsAndDistributionsDeclaredButNotPaid	18925000	USD
CY2012	krc	Company Annual Taxable Income Distribution CompanyAnnualTaxableIncomeDistribution	1
CY2010	krc	Compensation Expense Previously Recorded Related To Development Performance Plan CompensationExpensePreviouslyRecordedRelatedToDevelopmentPerformancePlan	-1100000	USD
CY2012Q4	krc	Construction Bonds Outstanding ConstructionBondsOutstanding	4400000	USD
CY2012	krc	Deferred Compensation Arrangement With Individual Employer Contribution Percent DeferredCompensationArrangementWithIndividualEmployerContributionPercent	0.10
CY2012	krc	Deferred Compensation Arrangement With Individual Lump Sum Distribution Minimum Period DeferredCompensationArrangementWithIndividualLumpSumDistributionMinimumPeriod	P2Y
CY2012	krc	Deferred Compensation Directors Fees And Employee Bonuses Percent DeferredCompensationDirectorsFeesAndEmployeeBonusesPercent	1
CY2012	krc	Deferred Compensation Employee Salary Percent DeferredCompensationEmployeeSalaryPercent	0.70
CY2011Q4	krc	Deferred Leasing Costs And Acquisition Related Intangible Assets Net DeferredLeasingCostsAndAcquisitionRelatedIntangibleAssetsNet	155522000	USD
CY2012Q4	krc	Deferred Leasing Costs And Acquisition Related Intangible Assets Net DeferredLeasingCostsAndAcquisitionRelatedIntangibleAssetsNet	189968000	USD
CY2011Q4	krc	Deferred Rent Receivables Gross DeferredRentReceivablesGross	104548000	USD
CY2012Q4	krc	Deferred Rent Receivables Gross DeferredRentReceivablesGross	118025000	USD
CY2012Q4	krc	Deferred Revenue And Acquisition Related Intangible Liabilities DeferredRevenueAndAcquisitionRelatedIntangibleLiabilities	117904000	USD
CY2011Q4	krc	Deferred Revenue And Acquisition Related Intangible Liabilities DeferredRevenueAndAcquisitionRelatedIntangibleLiabilities	79781000	USD
CY2012Q4	krc	Deferred Revenue Related To Tenant Funded Tenant Improvements DeferredRevenueRelatedToTenantFundedTenantImprovements	56461000	USD
CY2011Q4	krc	Deferred Revenue Related To Tenant Funded Tenant Improvements DeferredRevenueRelatedToTenantFundedTenantImprovements	41884000	USD
CY2012	krc	Deferred Revenue Related To Tenant Funded Tenant Improvements Future Amortization Recognized DeferredRevenueRelatedToTenantFundedTenantImprovementsFutureAmortizationRecognized	56461000	USD
CY2012	krc	Deferred Revenue Related To Tenant Funded Tenant Improvements Future Amortization Recognized After Year Five DeferredRevenueRelatedToTenantFundedTenantImprovementsFutureAmortizationRecognizedAfterYearFive	14579000	USD
CY2012	krc	Deferred Revenue Related To Tenant Funded Tenant Improvements Future Amortization Recognized Year Five DeferredRevenueRelatedToTenantFundedTenantImprovementsFutureAmortizationRecognizedYearFive	6409000	USD
CY2012	krc	Deferred Revenue Related To Tenant Funded Tenant Improvements Future Amortization Recognized Year Four DeferredRevenueRelatedToTenantFundedTenantImprovementsFutureAmortizationRecognizedYearFour	7825000	USD
CY2012	krc	Deferred Revenue Related To Tenant Funded Tenant Improvements Future Amortization Recognized Year One DeferredRevenueRelatedToTenantFundedTenantImprovementsFutureAmortizationRecognizedYearOne	10054000	USD
CY2012	krc	Deferred Revenue Related To Tenant Funded Tenant Improvements Future Amortization Recognized Year Three DeferredRevenueRelatedToTenantFundedTenantImprovementsFutureAmortizationRecognizedYearThree	8255000	USD
CY2012	krc	Deferred Revenue Related To Tenant Funded Tenant Improvements Future Amortization Recognized Year Two DeferredRevenueRelatedToTenantFundedTenantImprovementsFutureAmortizationRecognizedYearTwo	9339000	USD
CY2012	krc	Defined Contribution Plan Contributions By Employee Percent DefinedContributionPlanContributionsByEmployeePercent	0.60
CY2012	krc	Defined Contribution Plan Employer Matching Contribution DefinedContributionPlanEmployerMatchingContribution	0.50	USD
CY2010	krc	Depreciation And Amortization Of Buildings And Improvements DepreciationAndAmortizationOfBuildingsAndImprovements	86300000	USD
CY2011	krc	Depreciation And Amortization Of Buildings And Improvements DepreciationAndAmortizationOfBuildingsAndImprovements	106000000	USD
CY2012	krc	Depreciation And Amortization Of Buildings And Improvements DepreciationAndAmortizationOfBuildingsAndImprovements	125900000	USD
CY2010	krc	Dividends And Distributions Paid To Preferred Stockholders And Preferred Unitholders DividendsAndDistributionsPaidToPreferredStockholdersAndPreferredUnitholders	15196000	USD
CY2012	krc	Dividends And Distributions Paid To Preferred Stockholders And Preferred Unitholders DividendsAndDistributionsPaidToPreferredStockholdersAndPreferredUnitholders	14165000	USD
CY2011	krc	Dividends And Distributions Paid To Preferred Stockholders And Preferred Unitholders DividendsAndDistributionsPaidToPreferredStockholdersAndPreferredUnitholders	15196000	USD
CY2012	krc	Eligibility Period For401 K Savings Plan Number Of Months EligibilityPeriodFor401KSavingsPlanNumberOfMonths	3	Months
CY2012	krc	Exchange Of Common Units Of Operating Partnership Into Shares Of Companys Common Stock ExchangeOfCommonUnitsOfOperatingPartnershipIntoSharesOfCompanysCommonStock	231000	USD
CY2011	krc	Exchange Of Common Units Of Operating Partnership Into Shares Of Companys Common Stock ExchangeOfCommonUnitsOfOperatingPartnershipIntoSharesOfCompanysCommonStock	91000	USD
CY2010	krc	Exchange Of Common Units Of Operating Partnership Into Shares Of Companys Common Stock ExchangeOfCommonUnitsOfOperatingPartnershipIntoSharesOfCompanysCommonStock	0	USD
CY2011	krc	Expenditures For Operating And Development And Redevelopment Properties Accrued But Not Yet Paid ExpendituresForOperatingAndDevelopmentAndRedevelopmentPropertiesAccruedButNotYetPaid	14301000	USD
CY2010	krc	Expenditures For Operating And Development And Redevelopment Properties Accrued But Not Yet Paid ExpendituresForOperatingAndDevelopmentAndRedevelopmentPropertiesAccruedButNotYetPaid	19563000	USD
CY2012	krc	Expenditures For Operating And Development And Redevelopment Properties Accrued But Not Yet Paid ExpendituresForOperatingAndDevelopmentAndRedevelopmentPropertiesAccruedButNotYetPaid	54198000	USD
CY2011	krc	Expenditures For Operating Properties ExpendituresForOperatingProperties	62739000	USD
CY2012	krc	Expenditures For Operating Properties ExpendituresForOperatingProperties	86377000	USD
CY2010	krc	Expenditures For Operating Properties ExpendituresForOperatingProperties	71099000	USD
CY2012	krc	Forty Five Year Ground Lease Extension Option FortyFiveYearGroundLeaseExtensionOption	P45Y
CY2012	krc	Ground Lease Minimum Rent Increase Percentage Of Annual Percentage Rent GroundLeaseMinimumRentIncreasePercentageOfAnnualPercentageRent	0.50
CY2012	krc	Ground Lease Minimum Rent Increase Period Of Increase GroundLeaseMinimumRentIncreasePeriodOfIncrease	P5Y
CY2011	krc	Income Tax Liability Relating To Taxable Reit Subisidiary IncomeTaxLiabilityRelatingToTaxableReitSubisidiary	30000000	USD
CY2012	krc	Income Tax Liability Relating To Taxable Reit Subisidiary IncomeTaxLiabilityRelatingToTaxableReitSubisidiary	60000000	USD
CY2010	krc	Income Tax Liability Relating To Taxable Reit Subisidiary IncomeTaxLiabilityRelatingToTaxableReitSubisidiary	30000000	USD
CY2011	krc	Interest Income And Other Net Investment Gains Losses InterestIncomeAndOtherNetInvestmentGainsLosses	571000	USD
CY2012	krc	Interest Income And Other Net Investment Gains Losses InterestIncomeAndOtherNetInvestmentGainsLosses	848000	USD
CY2010	krc	Interest Income And Other Net Investment Gains Losses InterestIncomeAndOtherNetInvestmentGainsLosses	964000	USD
CY2011	krc	Issuance Of Share Based Compensation Awards Supplemental IssuanceOfShareBasedCompensationAwardsSupplemental	7797000	USD
CY2010	krc	Issuance Of Share Based Compensation Awards Supplemental IssuanceOfShareBasedCompensationAwardsSupplemental	5910000	USD
CY2012	krc	Issuance Of Share Based Compensation Awards Supplemental IssuanceOfShareBasedCompensationAwardsSupplemental	31396000	USD
CY2011	krc	Issuance Of Share Based Compensation Awards Value IssuanceOfShareBasedCompensationAwardsValue	2739000	USD
CY2010	krc	Issuance Of Share Based Compensation Awards Value IssuanceOfShareBasedCompensationAwardsValue	2151000	USD
CY2012	krc	Issuance Of Share Based Compensation Awards Value IssuanceOfShareBasedCompensationAwardsValue	1291000	USD
CY2012Q4	krc	Land Buildings And Improvement Net LandBuildingsAndImprovementNet	3191225000	USD
CY2011Q4	krc	Land Buildings And Improvement Net LandBuildingsAndImprovementNet	2625381000	USD
CY2012	krc	Net Income Loss Available To Common Stockholders Basic And Diluted NetIncomeLossAvailableToCommonStockholdersBasicAndDiluted	248224000	USD
CY2010	krc	Net Income Loss Available To Common Stockholders Basic And Diluted NetIncomeLossAvailableToCommonStockholdersBasicAndDiluted	3361000	USD
CY2011	krc	Net Income Loss Available To Common Stockholders Basic And Diluted NetIncomeLossAvailableToCommonStockholdersBasicAndDiluted	49510000	USD
CY2010	krc	Noncash Amortization Of Deferred Revenue Related To Tenant Funded Tenant Improvements NoncashAmortizationOfDeferredRevenueRelatedToTenantFundedTenantImprovements	9689000	USD
CY2012	krc	Noncash Amortization Of Deferred Revenue Related To Tenant Funded Tenant Improvements NoncashAmortizationOfDeferredRevenueRelatedToTenantFundedTenantImprovements	9136000	USD
CY2011	krc	Noncash Amortization Of Deferred Revenue Related To Tenant Funded Tenant Improvements NoncashAmortizationOfDeferredRevenueRelatedToTenantFundedTenantImprovements	9349000	USD
CY2012Q4	krc	Number Of Acquisition Transactions NumberOfAcquisitionTransactions	2
CY2011Q4	krc	Number Of Consolidated Variable Interest Entities NumberOfConsolidatedVariableInterestEntities	1
CY2012Q4	krc	Number Of Consolidated Variable Interest Entities NumberOfConsolidatedVariableInterestEntities	2
CY2012	krc	Number Of Days To Complete Section1031 Exchange NumberOfDaysToCompleteSection1031Exchange	180
CY2012	krc	Number Of Executive Compensation Committee Independent Directors NumberOfExecutiveCompensationCommitteeIndependentDirectors	4	director
CY2011	krc	Number Of Non Reportable Segments NumberOfNonReportableSegments	1	segment
CY2012Q4	krc	Number Of Properties Of Company In Another State NumberOfPropertiesOfCompanyInAnotherState	10	building
CY2012	krc	Number Of Quarters NumberOfQuarters	6	Quarters
CY2011Q4	krc	Number Of Real Estate Properties Held For Sale NumberOfRealEstatePropertiesHeldForSale	2	properties
CY2011	krc	Numerator For Basic And Diluted Loss Income From Continuing Operations Available To Common Stockholders NumeratorForBasicAndDilutedLossIncomeFromContinuingOperationsAvailableToCommonStockholders	-19688000	USD
CY2010	krc	Numerator For Basic And Diluted Loss Income From Continuing Operations Available To Common Stockholders NumeratorForBasicAndDilutedLossIncomeFromContinuingOperationsAvailableToCommonStockholders	-16306000	USD
CY2012	krc	Numerator For Basic And Diluted Loss Income From Continuing Operations Available To Common Stockholders NumeratorForBasicAndDilutedLossIncomeFromContinuingOperationsAvailableToCommonStockholders	-16860000	USD
CY2011	krc	Payments For Repurchase Of Convertible Debt PaymentsForRepurchaseOfConvertibleDebt	0	USD
CY2012	krc	Payments For Repurchase Of Convertible Debt PaymentsForRepurchaseOfConvertibleDebt	0	USD
CY2010	krc	Payments For Repurchase Of Convertible Debt PaymentsForRepurchaseOfConvertibleDebt	151097000	USD
CY2012Q4	krc	Percentage Of General Partnership Interest Owned By Wholly Owned Subsidiary Of Company PercentageOfGeneralPartnershipInterestOwnedByWhollyOwnedSubsidiaryOfCompany	0.010
CY2012Q4	krc	Percentage Of Limited Partnership Interest Owned By Operating Partnership PercentageOfLimitedPartnershipInterestOwnedByOperatingPartnership	0.990
CY2012	krc	Period For Ground Lease Rentals Adjustment PeriodForGroundLeaseRentalsAdjustment	P5Y
CY2010	krc	Preferred Stockholders And Unitholders Dividends And Distributions Declared But Not Paid PreferredStockholdersAndUnitholdersDividendsAndDistributionsDeclaredButNotPaid	1909000	USD
CY2011	krc	Preferred Stockholders And Unitholders Dividends And Distributions Declared But Not Paid PreferredStockholdersAndUnitholdersDividendsAndDistributionsDeclaredButNotPaid	1909000	USD
CY2012	krc	Preferred Stockholders And Unitholders Dividends And Distributions Declared But Not Paid PreferredStockholdersAndUnitholdersDividendsAndDistributionsDeclaredButNotPaid	1694000	USD
CY2011Q4	krc	Proceeds From Bankruptcy Claim ProceedsFromBankruptcyClaim	3700000	USD
CY2012Q4	krc	Proceeds From Bankruptcy Claim ProceedsFromBankruptcyClaim	900000	USD
CY2012	krc	Proceeds From Issuance Of Preferred Stock ProceedsFromIssuanceOfPreferredStock	192411000	USD
CY2010	krc	Provision For Doubtful Accounts Including Discontinued Operations ProvisionForDoubtfulAccountsIncludingDiscontinuedOperations	-1063000	USD
CY2012	krc	Provision For Doubtful Accounts Including Discontinued Operations ProvisionForDoubtfulAccountsIncludingDiscontinuedOperations	-42000	USD
CY2011	krc	Provision For Doubtful Accounts Including Discontinued Operations ProvisionForDoubtfulAccountsIncludingDiscontinuedOperations	644000	USD
CY2010	krc	Real Estate Accumulated Depreciation Deductions Assets Held For Sale RealEstateAccumulatedDepreciationDeductionsAssetsHeldForSale	0	USD
CY2011	krc	Real Estate Accumulated Depreciation Deductions Assets Held For Sale RealEstateAccumulatedDepreciationDeductionsAssetsHeldForSale	-14905000	USD
CY2012	krc	Real Estate Accumulated Depreciation Deductions Assets Held For Sale RealEstateAccumulatedDepreciationDeductionsAssetsHeldForSale	0	USD
CY2011	krc	Real Estate Accumulated Depreciation Period Decrease RealEstateAccumulatedDepreciationPeriodDecrease	-35908000	USD
CY2010	krc	Real Estate Accumulated Depreciation Period Decrease RealEstateAccumulatedDepreciationPeriodDecrease	-19835000	USD
CY2012	krc	Real Estate Accumulated Depreciation Period Decrease RealEstateAccumulatedDepreciationPeriodDecrease	-111894000	USD
CY2012	krc	Real Estate Accumulated Depreciation Period Increase RealEstateAccumulatedDepreciationPeriodIncrease	125906000	USD
CY2011	krc	Real Estate Accumulated Depreciation Period Increase RealEstateAccumulatedDepreciationPeriodIncrease	105982000	USD
CY2010	krc	Real Estate Accumulated Depreciation Period Increase RealEstateAccumulatedDepreciationPeriodIncrease	86288000	USD
CY2012	krc	Real Estate Deductions Properties Held For Sale RealEstateDeductionsPropertiesHeldForSale	0	USD
CY2010	krc	Real Estate Deductions Properties Held For Sale RealEstateDeductionsPropertiesHeldForSale	0	USD
CY2011	krc	Real Estate Deductions Properties Held For Sale RealEstateDeductionsPropertiesHeldForSale	-89937000	USD
CY2012	krc	Real Estate Period Decrease RealEstatePeriodDecrease	-272025000	USD
CY2011	krc	Real Estate Period Decrease RealEstatePeriodDecrease	-120840000	USD
CY2010	krc	Real Estate Period Decrease RealEstatePeriodDecrease	-33742000	USD
CY2012	krc	Real Estate Period Increase RealEstatePeriodIncrease	1230729000	USD
CY2011	krc	Real Estate Period Increase RealEstatePeriodIncrease	702659000	USD
CY2010	krc	Real Estate Period Increase RealEstatePeriodIncrease	730530000	USD
CY2011	krc	Reit Annual Taxable Income Distribution Requirement Percentage ReitAnnualTaxableIncomeDistributionRequirementPercentage	0.90
CY2012	krc	Reit Annual Taxable Income Distribution Requirement Percentage ReitAnnualTaxableIncomeDistributionRequirementPercentage	0.90
CY2012Q4	krc	Rents Received In Advance And Tenant Security Deposits RentsReceivedInAdvanceAndTenantSecurityDeposits	37654000	USD
CY2011Q4	krc	Rents Received In Advance And Tenant Security Deposits RentsReceivedInAdvanceAndTenantSecurityDeposits	26917000	USD
CY2012Q4	krc	Restricted Stock Unit Rsu Definition RestrictedStockUnitRsuDefinition	1	shares
CY2010	krc	Settlementofrestrictedstockunitsforcommonstockvalue Settlementofrestrictedstockunitsforcommonstockvalue	1296000	USD
CY2012	krc	Settlementofrestrictedstockunitsforcommonstockvalue Settlementofrestrictedstockunitsforcommonstockvalue	784000	USD
CY2012Q4	krc	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant Subject To Full Value Award ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrantSubjectToFullValueAward	219002	shares
CY2012Q4	krc	Share Based Compensation Plans ShareBasedCompensationPlans	1
CY2012	krc	Stabilized Occupancy StabilizedOccupancy	0.95
CY2012	krc	Ten Year Ground Lease Extension Option TenYearGroundLeaseExtensionOption	P10Y
CY2011Q4	krc	Undeveloped Land And Construction In Progress UndevelopedLandAndConstructionInProgress	430806000	USD
CY2012Q4	krc	Undeveloped Land And Construction In Progress UndevelopedLandAndConstructionInProgress	809654000	USD
CY2012	dei	Amendment Flag AmendmentFlag	false
CY2012	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2012	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q4
CY2012	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2012
CY2012	dei	Document Period End Date DocumentPeriodEndDate	2012-12-31
CY2012	dei	Document Type DocumentType	10-K
CY2012	dei	Entity Central Index Key EntityCentralIndexKey	0001025996
CY2013Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	74895990	shares
CY2012	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2012	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2012Q2	dei	Entity Public Float EntityPublicFloat	2382187648	USD
CY2012	dei	Entity Registrant Name EntityRegistrantName	KILROY REALTY CORP
CY2012	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2012	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes

Files In Submission

Name	View Source	Status
0001025996-13-000036-index-headers.html	Edgar Link	pending
0001025996-13-000036-index.html	Edgar Link	pending
0001025996-13-000036.txt	Edgar Link	pending
0001025996-13-000036-xbrl.zip	Edgar Link	pending
exhibit1048123112.htm	Edgar Link	pending
exhibit1056123112.htm	Edgar Link	pending
exhibit1057123112.htm	Edgar Link	pending
exhibit121123112.htm	Edgar Link	pending
exhibit122123112.htm	Edgar Link	pending
exhibit211123112.htm	Edgar Link	pending
exhibit212123112.htm	Edgar Link	pending
exhibit231123112.htm	Edgar Link	pending
exhibit232123112.htm	Edgar Link	pending
exhibit311123112.htm	Edgar Link	pending
exhibit312123112.htm	Edgar Link	pending
exhibit313123112.htm	Edgar Link	pending
exhibit314123112.htm	Edgar Link	pending
exhibit321123112.htm	Edgar Link	pending
exhibit322123112.htm	Edgar Link	pending
exhibit323123112.htm	Edgar Link	pending
exhibit324123112.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xls	Edgar Link	pending
krc-20121231.xml	Edgar Link	completed
krc-20121231.xsd	Edgar Link	pending
krc-20121231_cal.xml	Edgar Link	unprocessable
krc-20121231_def.xml	Edgar Link	unprocessable
krc-20121231_lab.xml	Edgar Link	unprocessable
krc-20121231_pre.xml	Edgar Link	unprocessable
krc10k12312012.htm	Edgar Link	pending
krcsubsidiarychart.jpg	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R100.htm	Edgar Link	pending
R101.htm	Edgar Link	pending
R102.htm	Edgar Link	pending
R103.htm	Edgar Link	pending
R104.htm	Edgar Link	pending
R105.htm	Edgar Link	pending
R106.htm	Edgar Link	pending
R107.htm	Edgar Link	pending
R108.htm	Edgar Link	pending
R109.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R110.htm	Edgar Link	pending
R111.htm	Edgar Link	pending
R112.htm	Edgar Link	pending
R113.htm	Edgar Link	pending
R114.htm	Edgar Link	pending
R115.htm	Edgar Link	pending
R116.htm	Edgar Link	pending
R117.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
R14.htm	Edgar Link	pending
R15.htm	Edgar Link	pending
R16.htm	Edgar Link	pending
R17.htm	Edgar Link	pending
R18.htm	Edgar Link	pending
R19.htm	Edgar Link	pending
R2.htm	Edgar Link	pending
R20.htm	Edgar Link	pending
R21.htm	Edgar Link	pending
R22.htm	Edgar Link	pending
R23.htm	Edgar Link	pending
R24.htm	Edgar Link	pending
R25.htm	Edgar Link	pending
R26.htm	Edgar Link	pending
R27.htm	Edgar Link	pending
R28.htm	Edgar Link	pending
R29.htm	Edgar Link	pending
R3.htm	Edgar Link	pending
R30.htm	Edgar Link	pending
R31.htm	Edgar Link	pending
R32.htm	Edgar Link	pending
R33.htm	Edgar Link	pending
R34.htm	Edgar Link	pending
R35.htm	Edgar Link	pending
R36.htm	Edgar Link	pending
R37.htm	Edgar Link	pending
R38.htm	Edgar Link	pending
R39.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R40.htm	Edgar Link	pending
R41.htm	Edgar Link	pending
R42.htm	Edgar Link	pending
R43.htm	Edgar Link	pending
R44.htm	Edgar Link	pending
R45.htm	Edgar Link	pending
R46.htm	Edgar Link	pending
R47.htm	Edgar Link	pending
R48.htm	Edgar Link	pending
R49.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R50.htm	Edgar Link	pending
R51.htm	Edgar Link	pending
R52.htm	Edgar Link	pending
R53.htm	Edgar Link	pending
R54.htm	Edgar Link	pending
R55.htm	Edgar Link	pending
R56.htm	Edgar Link	pending
R57.htm	Edgar Link	pending
R58.htm	Edgar Link	pending
R59.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R60.htm	Edgar Link	pending
R61.htm	Edgar Link	pending
R62.htm	Edgar Link	pending
R63.htm	Edgar Link	pending
R64.htm	Edgar Link	pending
R65.htm	Edgar Link	pending
R66.htm	Edgar Link	pending
R67.htm	Edgar Link	pending
R68.htm	Edgar Link	pending
R69.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R70.htm	Edgar Link	pending
R71.htm	Edgar Link	pending
R72.htm	Edgar Link	pending
R73.htm	Edgar Link	pending
R74.htm	Edgar Link	pending
R75.htm	Edgar Link	pending
R76.htm	Edgar Link	pending
R77.htm	Edgar Link	pending
R78.htm	Edgar Link	pending
R79.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R80.htm	Edgar Link	pending
R81.htm	Edgar Link	pending
R82.htm	Edgar Link	pending
R83.htm	Edgar Link	pending
R84.htm	Edgar Link	pending
R85.htm	Edgar Link	pending
R86.htm	Edgar Link	pending
R87.htm	Edgar Link	pending
R88.htm	Edgar Link	pending
R89.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
R90.htm	Edgar Link	pending
R91.htm	Edgar Link	pending
R92.htm	Edgar Link	pending
R93.htm	Edgar Link	pending
R94.htm	Edgar Link	pending
R95.htm	Edgar Link	pending
R96.htm	Edgar Link	pending
R97.htm	Edgar Link	pending
R98.htm	Edgar Link	pending
R99.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending
stockchart2012.jpg	Edgar Link	pending
tenantbasebyindustry.jpg	Edgar Link	pending

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$KRC
Kilroy Realty Corp Stock $krc

2012 Q4 Form 10-K Financial Statement

#000102599613000036 Filed on February 12, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$KRC Kilroy Realty Corp Stock $krc

2012 Q4 Form 10-K Financial Statement

#000102599613000036 Filed on February 12, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$KRC
Kilroy Realty Corp Stock $krc