$ESBA
Empire State Realty OP, L.P. Stock $esba

$esba Overview Financials Valuation SEC Filings Company Website

2016 Q4 Form 10-K Financial Statement

#000162828018002433 Filed on February 28, 2018

Income Statement

Concept	2016 Q4	2015 Q4	2015 Q3
Revenue	$178.8M	$165.2M	$175.8M
YoY Change	8.24%	-3.06%	3.74%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin			$10.18M
YoY Change			1.1%
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization
YoY Change
% of Gross Profit
Operating Expenses			$130.4M
YoY Change			3.5%
Operating Profit	$52.20M	$37.23M	$45.34M
YoY Change	40.2%	19.01%	4.45%
Interest Expense			$16.68M
YoY Change			-5.62%
% of Operating Profit			36.79%
Other Income/Expense, Net
YoY Change
Pretax Income			$28.66M
YoY Change			11.36%
Income Tax			$2.578M
% Of Pretax Income			8.99%
Net Earnings	$32.77M	$19.14M	$25.85M
YoY Change	71.27%	78.36%	14.93%
Net Earnings / Revenue	18.33%	11.58%	14.71%
Basic Earnings Per Share			$0.10
Diluted Earnings Per Share			$0.10
COMMON SHARES
Basic Shares Outstanding			265.9M shares
Diluted Shares Outstanding			265.9M shares

Balance Sheet

Concept	2016 Q4	2015 Q4	2015 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$554.4M	$46.69M	$46.39M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment
YoY Change
Goodwill	$491.5M	$491.5M	$491.5M
YoY Change	0.0%	0.0%	0.0%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$3.891B	$3.301B	$3.309B
YoY Change	17.88%	0.52%	0.2%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities
YoY Change
LONG-TERM LIABILITIES
Long-Term Debt
YoY Change
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities
YoY Change
TOTAL LIABILITIES
Total Short-Term Liabilities
Total Long-Term Liabilities
Total Liabilities	$1.908B	$1.928B	$1.936B
YoY Change	-1.03%	1.34%	1.43%
SHAREHOLDERS EQUITY
Retained Earnings
YoY Change
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity
YoY Change
Total Liabilities & Shareholders Equity	$3.891B	$3.301B	$3.309B
YoY Change	17.88%	0.52%	0.2%

Cashflow Statement

Concept	2016 Q4	2015 Q4	2015 Q3
OPERATING ACTIVITIES
Net Income	$32.77M	$19.14M	$25.85M
YoY Change	71.27%	78.36%	14.93%
Depreciation, Depletion And Amortization
YoY Change
Cash From Operating Activities
YoY Change
INVESTING ACTIVITIES
Capital Expenditures
YoY Change
Acquisitions
YoY Change
Other Investing Activities
YoY Change
Cash From Investing Activities
YoY Change
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities
YoY Change
NET CHANGE
Cash From Operating Activities
Cash From Investing Activities
Cash From Financing Activities
Net Change In Cash
YoY Change
FREE CASH FLOW
Cash From Operating Activities
Capital Expenditures
Free Cash Flow
YoY Change

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2017	dei	Amendment Flag AmendmentFlag	false
CY2017	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2017	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2017	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	834267	shares
CY2017Q4	us-gaap	Area Of Real Estate Property AreaOfRealEstateProperty	10100000	sqft
CY2017	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2017
CY2017	dei	Document Period End Date DocumentPeriodEndDate	2017-12-31
CY2017	dei	Document Type DocumentType	10-K
CY2017	dei	Entity Central Index Key EntityCentralIndexKey	0001553079
CY2017	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2017	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2017Q2	dei	Entity Public Float EntityPublicFloat	0	USD
CY2017	dei	Entity Registrant Name EntityRegistrantName	Empire State Realty OP, L.P.
CY2017	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2017	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2017Q4	esrt	Aboveand Below Market Lease Net AboveandBelowMarketLeaseNet	35412000	USD
CY2017Q4	esrt	Aboveand Below Market Lease Net Amortization Income Next Twelve Months AboveandBelowMarketLeaseNetAmortizationIncomeNextTwelveMonths	6442000	USD
CY2017Q4	esrt	Aboveand Below Market Lease Net Amortization Income Year Five AboveandBelowMarketLeaseNetAmortizationIncomeYearFive	3175000	USD
CY2017Q4	esrt	Aboveand Below Market Lease Net Amortization Income Year Four AboveandBelowMarketLeaseNetAmortizationIncomeYearFour	2857000	USD
CY2017Q4	esrt	Aboveand Below Market Lease Net Amortization Income Year Three AboveandBelowMarketLeaseNetAmortizationIncomeYearThree	3559000	USD
CY2017Q4	esrt	Aboveand Below Market Lease Net Amortization Income Year Two AboveandBelowMarketLeaseNetAmortizationIncomeYearTwo	6689000	USD
CY2017Q4	esrt	Aboveand Below Market Lease Net Amortization Incomeafter Year Five AboveandBelowMarketLeaseNetAmortizationIncomeafterYearFive	12690000	USD
CY2016Q4	esrt	Accounts Payableand Accrued Expenses AccountsPayableandAccruedExpenses	134064000	USD
CY2017Q4	esrt	Accounts Payableand Accrued Expenses AccountsPayableandAccruedExpenses	110849000	USD
CY2016Q4	esrt	Accrued Liabilities Capital Expenditures AccruedLiabilitiesCapitalExpenditures	66620000	USD
CY2017Q4	esrt	Accrued Liabilities Capital Expenditures AccruedLiabilitiesCapitalExpenditures	71769000	USD
CY2016Q4	esrt	Accumulated Amortization Deferred Costs AccumulatedAmortizationDeferredCosts	195617000	USD
CY2017Q4	esrt	Accumulated Amortization Deferred Costs AccumulatedAmortizationDeferredCosts	215102000	USD
CY2016Q4	esrt	Allowancefor Deferred Rent Receivables AllowanceforDeferredRentReceivables	390000	USD
CY2017Q4	esrt	Allowancefor Deferred Rent Receivables AllowanceforDeferredRentReceivables	185000	USD
CY2015	esrt	Amortizationofbelow Market Ground Lease AmortizationofbelowMarketGroundLease	7996000	USD
CY2016	esrt	Amortizationofbelow Market Ground Lease AmortizationofbelowMarketGroundLease	7831000	USD
CY2017	esrt	Amortizationofbelow Market Ground Lease AmortizationofbelowMarketGroundLease	7831000	USD
CY2015	esrt	Commercial Real Estate Incurredbut Notyet Paid CommercialRealEstateIncurredbutNotyetPaid	51315000	USD
CY2016	esrt	Commercial Real Estate Incurredbut Notyet Paid CommercialRealEstateIncurredbutNotyetPaid	66620000	USD
CY2017	esrt	Commercial Real Estate Incurredbut Notyet Paid CommercialRealEstateIncurredbutNotyetPaid	71769000	USD
CY2016Q4	esrt	Deferred Costs Gross DeferredCostsGross	468208000	USD
CY2017Q4	esrt	Deferred Costs Gross DeferredCostsGross	469530000	USD
CY2017Q4	esrt	Deferred Costs Leasing Internal Costs Gross DeferredCostsLeasingInternalCostsGross	2600000	USD
CY2016Q4	esrt	Deferred Revenueand Other Liabilities DeferredRevenueandOtherLiabilities	32212000	USD
CY2017Q4	esrt	Deferred Revenueand Other Liabilities DeferredRevenueandOtherLiabilities	40907000	USD
CY2015Q4	esrt	Derivative Financial Instruments Includedin Accounts Payableand Accrued Expense DerivativeFinancialInstrumentsIncludedinAccountsPayableandAccruedExpense	1922000	USD
CY2016Q4	esrt	Derivative Financial Instruments Includedin Accounts Payableand Accrued Expense DerivativeFinancialInstrumentsIncludedinAccountsPayableandAccruedExpense	5591000	USD
CY2017Q4	esrt	Derivative Financial Instruments Includedin Accounts Payableand Accrued Expense DerivativeFinancialInstrumentsIncludedinAccountsPayableandAccruedExpense	436000	USD
CY2015Q4	esrt	Derivative Financial Instruments Includedin Prepaid Expensesand Other Assets DerivativeFinancialInstrumentsIncludedinPrepaidExpensesandOtherAssets	0	USD
CY2016Q4	esrt	Derivative Financial Instruments Includedin Prepaid Expensesand Other Assets DerivativeFinancialInstrumentsIncludedinPrepaidExpensesandOtherAssets	614000	USD
CY2017Q4	esrt	Derivative Financial Instruments Includedin Prepaid Expensesand Other Assets DerivativeFinancialInstrumentsIncludedinPrepaidExpensesandOtherAssets	0	USD
CY2015	esrt	Development Costs Investing Activity DevelopmentCostsInvestingActivity	512000	USD
CY2016	esrt	Development Costs Investing Activity DevelopmentCostsInvestingActivity	453000	USD
CY2017	esrt	Development Costs Investing Activity DevelopmentCostsInvestingActivity	34000	USD
CY2015	esrt	Ground Rent Expense GroundRentExpense	9326000	USD
CY2016	esrt	Ground Rent Expense GroundRentExpense	9326000	USD
CY2017Q4	esrt	Percentageof Dividendson Common Stock Received In Periods After Performance Criteria Metfor Ltip Units PercentageofDividendsonCommonStockReceivedInPeriodsAfterPerformanceCriteriaMetforLTIPUnits	1
CY2016Q4	esrt	Percentageof Dividendson Common Stock Received Until Performance Criteria Metfor Ltip Units PercentageofDividendsonCommonStockReceivedUntilPerformanceCriteriaMetforLTIPUnits	0.1
CY2017Q4	esrt	Percentageof Dividendson Common Stock Received Until Performance Criteria Metfor Ltip Units PercentageofDividendsonCommonStockReceivedUntilPerformanceCriteriaMetforLTIPUnits	0.1
CY2016Q4	esrt	Private Perpetual Preferred Units Issued Shares PrivatePerpetualPreferredUnitsIssuedShares	1560360	shares
CY2017	esrt	Ground Rent Expense GroundRentExpense	9326000	USD
CY2015	esrt	Increase Decreasein Accounts Payableand Accrued Expenses IncreaseDecreaseinAccountsPayableandAccruedExpenses	-2674000	USD
CY2016	esrt	Increase Decreasein Accounts Payableand Accrued Expenses IncreaseDecreaseinAccountsPayableandAccruedExpenses	2939000	USD
CY2017	esrt	Increase Decreasein Accounts Payableand Accrued Expenses IncreaseDecreaseinAccountsPayableandAccruedExpenses	-25104000	USD
CY2015	esrt	Increase Decreasein Deferred Revenueand Other Liabilities IncreaseDecreaseinDeferredRevenueandOtherLiabilities	3512000	USD
CY2016	esrt	Increase Decreasein Deferred Revenueand Other Liabilities IncreaseDecreaseinDeferredRevenueandOtherLiabilities	824000	USD
CY2017	esrt	Increase Decreasein Deferred Revenueand Other Liabilities IncreaseDecreaseinDeferredRevenueandOtherLiabilities	8695000	USD
CY2015	esrt	Intercompany Rent Expense IntercompanyRentExpense	0	USD
CY2016	esrt	Intercompany Rent Expense IntercompanyRentExpense	0	USD
CY2017	esrt	Intercompany Rent Expense IntercompanyRentExpense	0	USD
CY2015	esrt	Intercompany Rental Revenue IntercompanyRentalRevenue	0	USD
CY2016	esrt	Intercompany Rental Revenue IntercompanyRentalRevenue	0	USD
CY2017	esrt	Intercompany Rental Revenue IntercompanyRentalRevenue	0	USD
CY2015	esrt	Lease Cancellation Fees LeaseCancellationFees	2000000	USD
CY2016	esrt	Lease Cancellation Fees LeaseCancellationFees	7700000	USD
CY2017	esrt	Lease Cancellation Fees LeaseCancellationFees	13600000	USD
CY2015	esrt	Net Income Loss Excluding Portion Attributableto Noncontrolling Interestand Participating Securities Basicand Diluted NetIncomeLossExcludingPortionAttributabletoNoncontrollingInterestandParticipatingSecuritiesBasicandDiluted	78442000	USD
CY2016	esrt	Net Income Loss Excluding Portion Attributableto Noncontrolling Interestand Participating Securities Basicand Diluted NetIncomeLossExcludingPortionAttributabletoNoncontrollingInterestandParticipatingSecuritiesBasicandDiluted	105567000	USD
CY2017	esrt	Net Income Loss Excluding Portion Attributableto Noncontrolling Interestand Participating Securities Basicand Diluted NetIncomeLossExcludingPortionAttributabletoNoncontrollingInterestandParticipatingSecuritiesBasicandDiluted	116557000	USD
CY2017Q4	esrt	Numberof Directors General Partnerin Investment Fund Owning More Than10 Economicand Voting Interestin Tenant NumberofDirectorsGeneralPartnerinInvestmentFundOwningMoreThan10EconomicandVotingInterestinTenant	1	director
CY2017Q4	esrt	Numberof Entitiestobe Treatedas Taxable Reit Subsidiary NumberofEntitiestobeTreatedasTaxableREITSubsidiary	2	entity
CY2015	esrt	Observatory Expense ObservatoryExpense	32174000	USD
CY2016	esrt	Observatory Expense ObservatoryExpense	29833000	USD
CY2017	esrt	Observatory Expense ObservatoryExpense	30275000	USD
CY2015	esrt	Observatory Revenue ObservatoryRevenue	112172000	USD
CY2016	esrt	Observatory Revenue ObservatoryRevenue	124814000	USD
CY2017	esrt	Observatory Revenue ObservatoryRevenue	127118000	USD
CY2015	esrt	Payments For Derivative Instrument Operating Activities PaymentsForDerivativeInstrumentOperatingActivities	0	USD
CY2016	esrt	Payments For Derivative Instrument Operating Activities PaymentsForDerivativeInstrumentOperatingActivities	0	USD
CY2017	esrt	Payments For Derivative Instrument Operating Activities PaymentsForDerivativeInstrumentOperatingActivities	15695000	USD
CY2015	esrt	Paymentsof Private Perpetual Preferred Units Distributions PaymentsofPrivatePerpetualPreferredUnitsDistributions	936000	USD
CY2016	esrt	Paymentsof Private Perpetual Preferred Units Distributions PaymentsofPrivatePerpetualPreferredUnitsDistributions	936000	USD
CY2017	esrt	Paymentsof Private Perpetual Preferred Units Distributions PaymentsofPrivatePerpetualPreferredUnitsDistributions	936000	USD
CY2016Q4	esrt	Percentageof Dividendson Common Stock Received After Performance Criteria Metfor Ltip Units PercentageofDividendsonCommonStockReceivedAfterPerformanceCriteriaMetforLTIPUnits	0.9
CY2017Q4	esrt	Percentageof Dividendson Common Stock Received After Performance Criteria Metfor Ltip Units PercentageofDividendsonCommonStockReceivedAfterPerformanceCriteriaMetforLTIPUnits	0.9
CY2016Q4	esrt	Percentageof Dividendson Common Stock Received In Periods After Performance Criteria Metfor Ltip Units PercentageofDividendsonCommonStockReceivedInPeriodsAfterPerformanceCriteriaMetforLTIPUnits	1
CY2017Q4	esrt	Private Perpetual Preferred Units Issued Shares PrivatePerpetualPreferredUnitsIssuedShares	1560360	shares
CY2016Q4	esrt	Private Perpetual Preferred Units Issued Value PrivatePerpetualPreferredUnitsIssuedValue	8004000	USD
CY2017Q4	esrt	Private Perpetual Preferred Units Issued Value PrivatePerpetualPreferredUnitsIssuedValue	8004000	USD
CY2016Q4	esrt	Private Perpetual Preferred Units Liquidation Preference Per Share PrivatePerpetualPreferredUnitsLiquidationPreferencePerShare	16.62
CY2017Q4	esrt	Private Perpetual Preferred Units Liquidation Preference Per Share PrivatePerpetualPreferredUnitsLiquidationPreferencePerShare	16.62
CY2016Q4	esrt	Private Perpetual Preferred Units Outstanding Shares PrivatePerpetualPreferredUnitsOutstandingShares	1560360	shares
CY2017Q4	esrt	Private Perpetual Preferred Units Outstanding Shares PrivatePerpetualPreferredUnitsOutstandingShares	1560360	shares
CY2015	esrt	Proceeds From Unsecured Debt Revolving Credit Facility ProceedsFromUnsecuredDebtRevolvingCreditFacility	655000000	USD
CY2017	us-gaap	Amortization Of Deferred Leasing Fees AmortizationOfDeferredLeasingFees	24100000	USD
CY2015	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	6100000	USD
CY2016	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	5000000	USD
CY2016	esrt	Proceeds From Unsecured Debt Revolving Credit Facility ProceedsFromUnsecuredDebtRevolvingCreditFacility	50000000	USD
CY2017	esrt	Proceeds From Unsecured Debt Revolving Credit Facility ProceedsFromUnsecuredDebtRevolvingCreditFacility	0	USD
CY2015	esrt	Proceeds From Unsecured Debt Revolving Credit Facility And Term Loan ProceedsFromUnsecuredDebtRevolvingCreditFacilityAndTermLoan	0	USD
CY2016	esrt	Proceeds From Unsecured Debt Revolving Credit Facility And Term Loan ProceedsFromUnsecuredDebtRevolvingCreditFacilityAndTermLoan	0	USD
CY2017	esrt	Proceeds From Unsecured Debt Revolving Credit Facility And Term Loan ProceedsFromUnsecuredDebtRevolvingCreditFacilityAndTermLoan	265000000	USD
CY2015	esrt	Proceedsfrom Unsecured Debt Term Loan ProceedsfromUnsecuredDebtTermLoan	265000000	USD
CY2016	esrt	Proceedsfrom Unsecured Debt Term Loan ProceedsfromUnsecuredDebtTermLoan	0	USD
CY2017	esrt	Proceedsfrom Unsecured Debt Term Loan ProceedsfromUnsecuredDebtTermLoan	0	USD
CY2015	esrt	Repayments From Unsecured Debt Term Loan RepaymentsFromUnsecuredDebtTermLoan	0	USD
CY2016	esrt	Repayments From Unsecured Debt Term Loan RepaymentsFromUnsecuredDebtTermLoan	0	USD
CY2017	esrt	Repayments From Unsecured Debt Term Loan RepaymentsFromUnsecuredDebtTermLoan	265000000	USD
CY2017	esrt	Sharebased Compensation Arrangementby Sharebased Payment Award Fair Value Assumptions Expected Volatility Rate Look Back Period SharebasedCompensationArrangementbySharebasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateLookBackPeriod	P6Y
CY2017	esrt	Sharebased Payment Arrangementby Sharebased Payment Award Equity Otherthan Options Vesting Threshold Ageof Grantee SharebasedPaymentArrangementbySharebasedPaymentAwardEquityOtherthanOptionsVestingThresholdAgeofGrantee	P60Y
CY2017	esrt	Tax Cutsand Jobs Actof2017 Change In Tax Rate Deferred Tax Asset Income Tax Expense Benefit TaxCutsandJobsActof2017ChangeInTaxRateDeferredTaxAssetIncomeTaxExpenseBenefit	400000	USD
CY2017	esrt	Tax Cutsand Jobs Actof2017 Income Tax Expense Benefit TaxCutsandJobsActof2017IncomeTaxExpenseBenefit	400000	USD
CY2017Q4	esrt	Unfunded Capital Expenditures UnfundedCapitalExpenditures	78200000	USD
CY2016Q4	us-gaap	Accounts And Notes Receivable Net AccountsAndNotesReceivableNet	22542000	USD
CY2017Q4	us-gaap	Accounts And Notes Receivable Net AccountsAndNotesReceivableNet	28329000	USD
CY2016Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	36246000	USD
CY2017Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	32509000	USD
CY2016Q4	us-gaap	Accumulated Amortization Deferred Finance Costs AccumulatedAmortizationDeferredFinanceCosts	12241000	USD
CY2017Q4	us-gaap	Accumulated Amortization Deferred Finance Costs AccumulatedAmortizationDeferredFinanceCosts	7039000	USD
CY2015	us-gaap	Advertising Expense AdvertisingExpense	8700000	USD
CY2016	us-gaap	Advertising Expense AdvertisingExpense	9400000	USD
CY2017	us-gaap	Advertising Expense AdvertisingExpense	7600000	USD
CY2016Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	3333000	USD
CY2017Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1422000	USD
CY2015	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-19353000	USD
CY2015	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-19400000	USD
CY2016	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-8795000	USD
CY2016	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-8800000	USD
CY2017	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-5700000	USD
CY2017	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-5721000	USD
CY2015	us-gaap	Amortization Of Deferred Leasing Fees AmortizationOfDeferredLeasingFees	25400000	USD
CY2016	us-gaap	Amortization Of Deferred Leasing Fees AmortizationOfDeferredLeasingFees	24200000	USD
CY2017	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	4700000	USD
CY2015	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	1698000	USD
CY2016	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	739000	USD
CY2017	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	1039000	USD
CY2015	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	706865	shares
CY2016	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	800746	shares
CY2016Q4	us-gaap	Convertible Debt ConvertibleDebt	590388000	USD
CY2017Q4	us-gaap	Convertible Debt ConvertibleDebt	707895000	USD
CY2015	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	2714000	USD
CY2015Q4	us-gaap	Assets Assets	3300650000	USD
CY2017Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.105
CY2017Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.105
CY2017Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.105
CY2015	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	78006000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	104196000	USD
CY2016Q4	us-gaap	Assets Assets	3890953000	USD
CY2017Q4	us-gaap	Assets Assets	3931347000	USD
CY2016Q4	us-gaap	Below Market Lease Accumulated Amortization BelowMarketLeaseAccumulatedAmortization	52726000	USD
CY2017Q4	us-gaap	Below Market Lease Accumulated Amortization BelowMarketLeaseAccumulatedAmortization	65979000	USD
CY2016Q4	us-gaap	Below Market Lease Gross BelowMarketLeaseGross	135026000	USD
CY2017Q4	us-gaap	Below Market Lease Gross BelowMarketLeaseGross	132026000	USD
CY2016Q4	us-gaap	Below Market Lease Net BelowMarketLeaseNet	82300000	USD
CY2017Q4	us-gaap	Below Market Lease Net BelowMarketLeaseNet	66047000	USD
CY2015	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	193000	USD
CY2016	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	98000	USD
CY2017	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	0	USD
CY2014Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	45732000	USD
CY2015Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	46685000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	554371000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	464344000	USD
CY2015	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	953000	USD
CY2016	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	507686000	USD
CY2017	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-90027000	USD
CY2016Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2017Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2015Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.085
CY2015Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.085
CY2015Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.085
CY2015Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.085
CY2016Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.085
CY2016Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.105
CY2016Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.105
CY2016Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.105
CY2017Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.105
CY2017	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	107737000	USD
CY2015	us-gaap	Construction And Development Costs ConstructionAndDevelopmentCosts	3222000	USD
CY2016	us-gaap	Construction And Development Costs ConstructionAndDevelopmentCosts	0	USD
CY2017	us-gaap	Construction And Development Costs ConstructionAndDevelopmentCosts	0	USD
CY2015	us-gaap	Construction Revenue ConstructionRevenue	1981000	USD
CY2016	us-gaap	Construction Revenue ConstructionRevenue	0	USD
CY2017	us-gaap	Construction Revenue ConstructionRevenue	0	USD
CY2015	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	62003000	USD
CY2016	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	23678000	USD
CY2017	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	23435000	USD
CY2017Q4	us-gaap	Due To Related Parties Current And Noncurrent DueToRelatedPartiesCurrentAndNoncurrent	448000	USD
CY2015	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.29
CY2016	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	3632000	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	3923000	USD
CY2015	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	4216000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	198000	USD
CY2016	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	5687000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	6227000	USD
CY2015	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1502000	USD
CY2016	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	2055000	USD
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	2304000	USD
CY2016Q4	us-gaap	Deferred Costs DeferredCosts	272591000	USD
CY2017Q4	us-gaap	Deferred Costs DeferredCosts	254428000	USD
CY2016Q4	us-gaap	Deferred Costs Current And Noncurrent DeferredCostsCurrentAndNoncurrent	277081000	USD
CY2017Q4	us-gaap	Deferred Costs Current And Noncurrent DeferredCostsCurrentAndNoncurrent	262701000	USD
CY2016Q4	us-gaap	Deferred Costs Leasing Gross DeferredCostsLeasingGross	140325000	USD
CY2017Q4	us-gaap	Deferred Costs Leasing Gross DeferredCostsLeasingGross	164751000	USD
CY2015	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-169000	USD
CY2016	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	291000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	446000	USD
CY2016Q4	us-gaap	Deferred Finance Costs Gross DeferredFinanceCostsGross	23145000	USD
CY2017Q4	us-gaap	Deferred Finance Costs Gross DeferredFinanceCostsGross	24446000	USD
CY2016Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	10904000	USD
CY2017Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	17407000	USD
CY2015	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-267000	USD
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	459000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	446000	USD
CY2016Q4	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	152074000	USD
CY2017Q4	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	178629000	USD
CY2016Q4	us-gaap	Deferred Revenue DeferredRevenue	4100000	USD
CY2017Q4	us-gaap	Deferred Revenue DeferredRevenue	4100000	USD
CY2015	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-98000	USD
CY2016	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	168000	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2015Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	267000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	1395000	USD
CY2015	us-gaap	Depreciation And Amortization DepreciationAndAmortization	171474000	USD
CY2016	us-gaap	Depreciation And Amortization DepreciationAndAmortization	155211000	USD
CY2017	us-gaap	Depreciation And Amortization DepreciationAndAmortization	160710000	USD
CY2015	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	171474000	USD
CY2016	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	155211000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	160710000	USD
CY2017	us-gaap	Derivative Instruments Gain Loss Reclassification From Accumulated Oci To Income Estimate Of Time To Transfer1 DerivativeInstrumentsGainLossReclassificationFromAccumulatedOCIToIncomeEstimateOfTimeToTransfer1	P10Y
CY2017	us-gaap	Derivative Instruments Gain Loss Reclassification From Accumulated Oci To Income Estimated Net Amount To Be Transferred DerivativeInstrumentsGainLossReclassificationFromAccumulatedOCIToIncomeEstimatedNetAmountToBeTransferred	-1500000	USD
CY2016Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	5591000	USD
CY2017Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	436000	USD
CY2016Q4	us-gaap	Development In Process DevelopmentInProcess	7951000	USD
CY2017Q4	us-gaap	Development In Process DevelopmentInProcess	7986000	USD
CY2016Q4	us-gaap	Due To Related Parties Current And Noncurrent DueToRelatedPartiesCurrentAndNoncurrent	1010000	USD
CY2016	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-552000	USD
CY2017	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-2157000	USD
CY2016	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.38
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.39
CY2015Q1	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.03
CY2015Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.10
CY2015Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.10
CY2015Q4	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.07
CY2015	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.29
CY2016Q1	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.06
CY2016Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.09
CY2016Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.12
CY2016Q4	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.11
CY2016	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.38
CY2017Q1	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.06
CY2017Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.10
CY2017Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.12
CY2017Q4	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.11
CY2017	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.39
CY2015	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.29
CY2016	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.38
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.39
CY2015	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.447
CY2016	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.448
CY2017	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.485
CY2015	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.34
CY2016	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.34
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.34
CY2015	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	0	USD
CY2016	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	0	USD
CY2017	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-289000	USD
CY2015	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-1749000	USD
CY2017Q4	us-gaap	General Partners Capital Account Units Outstanding GeneralPartnersCapitalAccountUnitsOutstanding	161500000	shares
CY2016Q4	us-gaap	Goodwill Goodwill	491479000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	491479000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	491500000	USD
CY2016Q4	us-gaap	Ground Leases Accumulated Amortization GroundLeasesAccumulatedAmortization	20856000	USD
CY2017Q4	us-gaap	Ground Leases Accumulated Amortization GroundLeasesAccumulatedAmortization	28687000	USD
CY2016Q4	us-gaap	Ground Leases Gross GroundLeasesGross	396916000	USD
CY2017Q4	us-gaap	Ground Leases Gross GroundLeasesGross	396916000	USD
CY2016Q4	us-gaap	Ground Leases Net GroundLeasesNet	376060000	USD
CY2017Q4	us-gaap	Ground Leases Net GroundLeasesNet	368229000	USD
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	83877000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	113396000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	124926000	USD
CY2015	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3949000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6146000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6673000	USD
CY2015	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2016	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2017	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	446000	USD
CY2015	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	3003000	USD
CY2016	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	4629000	USD
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	4684000	USD
CY2015	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	946000	USD
CY2016	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1517000	USD
CY2017	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1543000	USD
CY2015	us-gaap	Income Taxes Paid IncomeTaxesPaid	4465000	USD
CY2016	us-gaap	Income Taxes Paid IncomeTaxesPaid	6238000	USD
CY2017	us-gaap	Income Taxes Paid IncomeTaxesPaid	5783000	USD
CY2015	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-4963000	USD
CY2016	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	3760000	USD
CY2017	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	5787000	USD
CY2015	us-gaap	Increase Decrease In Deferred Leasing Fees IncreaseDecreaseInDeferredLeasingFees	31367000	USD
CY2016	us-gaap	Increase Decrease In Deferred Leasing Fees IncreaseDecreaseInDeferredLeasingFees	22622000	USD
CY2017	us-gaap	Increase Decrease In Deferred Leasing Fees IncreaseDecreaseInDeferredLeasingFees	31743000	USD
CY2015	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	1956000	USD
CY2016	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	3289000	USD
CY2017	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	7893000	USD
CY2015	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	119000	USD
CY2016	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	-538000	USD
CY2017	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	1592000	USD
CY2015	us-gaap	Increase Decrease In Restricted Cash For Operating Activities IncreaseDecreaseInRestrictedCashForOperatingActivities	-2954000	USD
CY2016	us-gaap	Increase Decrease In Restricted Cash For Operating Activities IncreaseDecreaseInRestrictedCashForOperatingActivities	-2121000	USD
CY2017	us-gaap	Increase Decrease In Restricted Cash For Operating Activities IncreaseDecreaseInRestrictedCashForOperatingActivities	2843000	USD
CY2015	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	0	shares
CY2016	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	266000	shares
CY2017	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	819000	shares
CY2015	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2016	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	454000	shares
CY2017	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	775000	shares
CY2015	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	0	USD
CY2016	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	0	USD
CY2017	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	500000	USD
CY2015	us-gaap	Interest Expense InterestExpense	65743000	USD
CY2016	us-gaap	Interest Expense InterestExpense	70595000	USD
CY2017	us-gaap	Interest Expense InterestExpense	68473000	USD
CY2015	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	0	USD
CY2016	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	0	USD
CY2017	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	459000	USD
CY2015	us-gaap	Interest Paid Net InterestPaidNet	64808000	USD
CY2016	us-gaap	Interest Paid Net InterestPaidNet	69062000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	66911000	USD
CY2016Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	6230000	USD
CY2017Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	5687000	USD
CY2016Q4	us-gaap	Investment Building And Building Improvements InvestmentBuildingAndBuildingImprovements	2249482000	USD
CY2017Q4	us-gaap	Investment Building And Building Improvements InvestmentBuildingAndBuildingImprovements	2458473000	USD
CY2016Q4	us-gaap	Land Land	201196000	USD
CY2017Q4	us-gaap	Land Land	201196000	USD
CY2016Q4	us-gaap	Liabilities Liabilities	1908090000	USD
CY2017Q4	us-gaap	Liabilities Liabilities	1953610000	USD
CY2016Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	3890953000	USD
CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	3931347000	USD
CY2017	us-gaap	Limited Liability Company Llc Or Limited Partnership Lp Managing Member Or General Partner Ownership Interest LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest	0.538
CY2017	us-gaap	Limited Liability Company Llc Or Limited Partnership Lp Members Or Limited Partners Ownership Interest LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest	0.462
CY2017Q4	us-gaap	Limited Partners Capital Account Units Outstanding LimitedPartnersCapitalAccountUnitsOutstanding	138900000	shares
CY2016Q4	us-gaap	Line Of Credit LineOfCredit	0	USD
CY2017Q4	us-gaap	Line Of Credit LineOfCredit	0	USD
CY2016Q4	us-gaap	Long Term Debt LongTermDebt	759016000	USD
CY2017Q4	us-gaap	Long Term Debt LongTermDebt	717164000	USD
CY2015	us-gaap	Management Fees Revenue ManagementFeesRevenue	2133000	USD
CY2016	us-gaap	Management Fees Revenue ManagementFeesRevenue	1766000	USD
CY2017	us-gaap	Management Fees Revenue ManagementFeesRevenue	1400000	USD
CY2015	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	91900000	USD
CY2016	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	115000000	USD
CY2017	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	127000000	USD
CY2015	us-gaap	Multiemployer Plan Contributions By Employer MultiemployerPlanContributionsByEmployer	11992000	USD
CY2016	us-gaap	Multiemployer Plan Contributions By Employer MultiemployerPlanContributionsByEmployer	11977000	USD
CY2017	us-gaap	Multiemployer Plan Contributions By Employer MultiemployerPlanContributionsByEmployer	12442000	USD
CY2015	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-59918000	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	470941000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-56877000	USD
CY2015	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-142316000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-181838000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-224605000	USD
CY2015	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	203187000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	218583000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	191455000	USD
CY2015Q1	us-gaap	Net Income Loss NetIncomeLoss	7654000	USD
CY2015Q2	us-gaap	Net Income Loss NetIncomeLoss	26351000	USD
CY2015Q3	us-gaap	Net Income Loss NetIncomeLoss	25851000	USD
CY2015Q4	us-gaap	Net Income Loss NetIncomeLoss	19136000	USD
CY2015	us-gaap	Net Income Loss NetIncomeLoss	78992000	USD
CY2016Q1	us-gaap	Net Income Loss NetIncomeLoss	16471000	USD
CY2016Q2	us-gaap	Net Income Loss NetIncomeLoss	24406000	USD
CY2016Q3	us-gaap	Net Income Loss NetIncomeLoss	32663000	USD
CY2016Q4	us-gaap	Net Income Loss NetIncomeLoss	32774000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	106314000	USD
CY2017Q1	us-gaap	Net Income Loss NetIncomeLoss	18911000	USD
CY2017Q2	us-gaap	Net Income Loss NetIncomeLoss	31125000	USD
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	35255000	USD
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	184543000	USD
CY2017Q4	us-gaap	Net Income Loss NetIncomeLoss	32026000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	117317000	USD
CY2017Q4	us-gaap	Number Of Properties Subject To Ground Leases NumberOfPropertiesSubjectToGroundLeases	3	property
CY2017	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	segment
CY2015	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	158638000	USD
CY2016	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	153850000	USD
CY2017	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	163531000	USD
CY2015	us-gaap	Operating Expenses OperatingExpenses	506265000	USD
CY2016	us-gaap	Operating Expenses OperatingExpenses	493457000	USD
CY2017	us-gaap	Operating Expenses OperatingExpenses	516623000	USD
CY2015Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	23757000	USD
CY2015Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	45039000	USD
CY2015Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	45343000	USD
CY2015Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	37230000	USD
CY2015	us-gaap	Operating Income Loss OperatingIncomeLoss	151369000	USD
CY2016Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	34114000	USD
CY2016Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	44192000	USD
CY2016Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	53586000	USD
CY2016Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	52651000	USD
CY2017Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	36666000	USD
CY2017Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	51434000	USD
CY2017Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	56781000	USD
CY2017Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	50964000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	195845000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	61284000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	61300000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	1518000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	1518000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	1518000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	1518000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	1518000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	53694000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Receivable OperatingLeasesFutureMinimumPaymentsReceivable	3710408000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Receivable Current OperatingLeasesFutureMinimumPaymentsReceivableCurrent	463110000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Five Years OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears	351431000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Four Years OperatingLeasesFutureMinimumPaymentsReceivableInFourYears	381394000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Three Years OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears	413745000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Two Years OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears	451161000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Receivable Thereafter OperatingLeasesFutureMinimumPaymentsReceivableThereafter	1649567000	USD
CY2015	us-gaap	Operating Leases Income Statement Lease Revenue OperatingLeasesIncomeStatementLeaseRevenue	447784000	USD
CY2016	us-gaap	Operating Leases Income Statement Lease Revenue OperatingLeasesIncomeStatementLeaseRevenue	460653000	USD
CY2017	us-gaap	Operating Leases Income Statement Lease Revenue OperatingLeasesIncomeStatementLeaseRevenue	483944000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-1922000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-3054000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-10516000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	0	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	0	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-1142000	USD
CY2015	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-1922000	USD
CY2016	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-3054000	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-11658000	USD
CY2016Q4	us-gaap	Other Liabilities OtherLiabilities	18367000	USD
CY2017Q4	us-gaap	Other Liabilities OtherLiabilities	0	USD
CY2015	us-gaap	Other Real Estate Revenue OtherRealEstateRevenue	14048000	USD
CY2016	us-gaap	Other Real Estate Revenue OtherRealEstateRevenue	17308000	USD
CY2017	us-gaap	Other Real Estate Revenue OtherRealEstateRevenue	26327000	USD
CY2014Q4	us-gaap	Partners Capital PartnersCapital	1381097000	USD
CY2015Q4	us-gaap	Partners Capital PartnersCapital	1372686000	USD
CY2016Q4	us-gaap	Partners Capital PartnersCapital	1982863000	USD
CY2017Q4	us-gaap	Partners Capital PartnersCapital	1977737000	USD
CY2015	us-gaap	Partners Capital Account Distributions PartnersCapitalAccountDistributions	91900000	USD
CY2016	us-gaap	Partners Capital Account Distributions PartnersCapitalAccountDistributions	114954000	USD
CY2017	us-gaap	Partners Capital Account Distributions PartnersCapitalAccountDistributions	126963000	USD
CY2015	us-gaap	Partners Capital Account Unit Based Compensation PartnersCapitalAccountUnitBasedCompensation	5483000	USD
CY2016	us-gaap	Partners Capital Account Unit Based Compensation PartnersCapitalAccountUnitBasedCompensation	9729000	USD
CY2017	us-gaap	Partners Capital Account Unit Based Compensation PartnersCapitalAccountUnitBasedCompensation	14100000	USD
CY2015	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	141685000	USD
CY2016	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	0	USD
CY2017	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	115000000	USD
CY2015Q1	us-gaap	Profit Loss ProfitLoss	7888000	USD
CY2016	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	181923000	USD
CY2017	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	315000000	USD
CY2015	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	350000000	USD
CY2017	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	222979000	USD
CY2015	us-gaap	Payments Of Dividends PaymentsOfDividends	90964000	USD
CY2016	us-gaap	Payments Of Dividends PaymentsOfDividends	114018000	USD
CY2017	us-gaap	Payments Of Dividends PaymentsOfDividends	126027000	USD
CY2015	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	6100000	USD
CY2016	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	3006000	USD
CY2017	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	13299000	USD
CY2015	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	156754000	USD
CY2016	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	197680000	USD
CY2017	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	228162000	USD
CY2015	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	936000	USD
CY2016	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	936000	USD
CY2017	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	936000	USD
CY2016Q4	us-gaap	Prepaid Expense And Other Assets PrepaidExpenseAndOtherAssets	53749000	USD
CY2017Q4	us-gaap	Prepaid Expense And Other Assets PrepaidExpenseAndOtherAssets	61028000	USD
CY2016Q3	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	621800000	USD
CY2015	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2016	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	611206000	USD
CY2017	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2015	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2016	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	50000000	USD
CY2015Q2	us-gaap	Profit Loss ProfitLoss	26585000	USD
CY2015Q3	us-gaap	Profit Loss ProfitLoss	26085000	USD
CY2015Q4	us-gaap	Profit Loss ProfitLoss	19370000	USD
CY2015	us-gaap	Profit Loss ProfitLoss	79928000	USD
CY2016Q1	us-gaap	Profit Loss ProfitLoss	16705000	USD
CY2016Q2	us-gaap	Profit Loss ProfitLoss	24640000	USD
CY2016Q3	us-gaap	Profit Loss ProfitLoss	32897000	USD
CY2016Q4	us-gaap	Profit Loss ProfitLoss	33008000	USD
CY2016	us-gaap	Profit Loss ProfitLoss	107250000	USD
CY2017Q1	us-gaap	Profit Loss ProfitLoss	19145000	USD
CY2017Q2	us-gaap	Profit Loss ProfitLoss	31359000	USD
CY2017Q3	us-gaap	Profit Loss ProfitLoss	35489000	USD
CY2017Q4	us-gaap	Profit Loss ProfitLoss	32260000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	118253000	USD
CY2014Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	377552000	USD
CY2015Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	465584000	USD
CY2016Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	556546000	USD
CY2017Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	656900000	USD
CY2016	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	15381000	USD
CY2017	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	19136000	USD
CY2015	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	20287000	USD
CY2017Q4	us-gaap	Real Estate And Accumulated Depreciation Amount Of Encumbrances RealEstateAndAccumulatedDepreciationAmountOfEncumbrances	717164000	USD
CY2017Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements	2458473000	USD
CY2017Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Land RealEstateAndAccumulatedDepreciationCarryingAmountOfLand	209182000	USD
CY2017Q4	us-gaap	Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements	1550350000	USD
CY2017Q4	us-gaap	Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements	918018000	USD
CY2017Q4	us-gaap	Real Estate And Accumulated Depreciation Initial Cost Of Land RealEstateAndAccumulatedDepreciationInitialCostOfLand	199287000	USD
CY2015	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	20287000	USD
CY2016	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	15381000	USD
CY2017	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	19136000	USD
CY2017Q4	us-gaap	Real Estate Federal Income Tax Basis RealEstateFederalIncomeTaxBasis	2305283000	USD
CY2014Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	2139863000	USD
CY2015Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	2276330000	USD
CY2016Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	2458629000	USD
CY2017Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	2667655000	USD
CY2015	us-gaap	Real Estate Improvements RealEstateImprovements	156754000	USD
CY2016	us-gaap	Real Estate Improvements RealEstateImprovements	197680000	USD
CY2017	us-gaap	Real Estate Improvements RealEstateImprovements	228162000	USD
CY2016Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	556546000	USD
CY2017Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	656900000	USD
CY2016Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	2458629000	USD
CY2017Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	2667655000	USD
CY2016Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	1902083000	USD
CY2017Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	2010755000	USD
CY2015	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	0	USD
CY2016	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	0	USD
CY2017	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	0	USD
CY2015	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	93165000	USD
CY2016	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	96061000	USD
CY2017	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	102466000	USD
CY2015	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	470000000	USD
CY2016	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	0	USD
CY2017	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	0	USD
CY2015	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	146918000	USD
CY2016	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	32305000	USD
CY2017	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	346615000	USD
CY2015	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	615000000	USD
CY2016	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	90000000	USD
CY2017	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	0	USD
CY2016Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	61514000	USD
CY2017Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	65853000	USD
CY2015Q1	us-gaap	Revenues Revenues	151882000	USD
CY2015Q2	us-gaap	Revenues Revenues	164773000	USD
CY2015Q3	us-gaap	Revenues Revenues	175779000	USD
CY2015Q4	us-gaap	Revenues Revenues	165200000	USD
CY2015	us-gaap	Revenues Revenues	657634000	USD
CY2016Q1	us-gaap	Revenues Revenues	157074000	USD
CY2016Q2	us-gaap	Revenues Revenues	165815000	USD
CY2016Q3	us-gaap	Revenues Revenues	175848000	USD
CY2016Q4	us-gaap	Revenues Revenues	179263000	USD
CY2017Q3	us-gaap	Revenues Revenues	187320000	USD
CY2016	us-gaap	Revenues Revenues	678000000	USD
CY2017Q1	us-gaap	Revenues Revenues	164954000	USD
CY2017Q2	us-gaap	Revenues Revenues	177124000	USD
CY2017Q4	us-gaap	Revenues Revenues	183070000	USD
CY2017	us-gaap	Revenues Revenues	712468000	USD
CY2015	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	108319000	USD
CY2016	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	106343000	USD
CY2017	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	119490000	USD
CY2016Q4	us-gaap	Security Deposit Liability SecurityDepositLiability	47183000	USD
CY2017Q4	us-gaap	Security Deposit Liability SecurityDepositLiability	47086000	USD
CY2015	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	38073000	USD
CY2016	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	49078000	USD
CY2017	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	50315000	USD
CY2015	us-gaap	Share Based Compensation ShareBasedCompensation	5483000	USD
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	9729000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	14100000	USD
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Requisite Service Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1	P10Y
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	5.36
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	13.77
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	10.01
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	11.20
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	11.97
CY2015	us-gaap	Stock Issued During Period Value Conversion Of Units StockIssuedDuringPeriodValueConversionOfUnits	0	USD
CY2016	us-gaap	Stock Issued During Period Value Conversion Of Units StockIssuedDuringPeriodValueConversionOfUnits	0	USD
CY2017	us-gaap	Stock Issued During Period Value Conversion Of Units StockIssuedDuringPeriodValueConversionOfUnits	0	USD
CY2016	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	611206000	USD
CY2015	us-gaap	Straight Line Rent StraightLineRent	21220000	USD
CY2016	us-gaap	Straight Line Rent StraightLineRent	30147000	USD
CY2017	us-gaap	Straight Line Rent StraightLineRent	26544000	USD
CY2015	us-gaap	Tenant Reimbursements TenantReimbursements	79516000	USD
CY2016	us-gaap	Tenant Reimbursements TenantReimbursements	73459000	USD
CY2017	us-gaap	Tenant Reimbursements TenantReimbursements	73679000	USD
CY2015	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	550000	USD
CY2016	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	747000	USD
CY2017	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	760000	USD
CY2017Q4	us-gaap	Units Of Partnership Interest Amount UnitsOfPartnershipInterestAmount	300400000	shares
CY2016Q4	us-gaap	Unsecured Debt UnsecuredDebt	262927000	USD
CY2017Q4	us-gaap	Unsecured Debt UnsecuredDebt	263662000	USD
CY2015	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	265914000	shares
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	277568000	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	298049000	shares
CY2015	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	265914000	shares
CY2016	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	276848000	shares
CY2017	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	296455000	shares
CY2015	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	265914000	shares
CY2016	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	276848000	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	296455000	shares
CY2017	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Reclassification</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;padding-bottom:16px;text-align:left;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Certain prior year balances have been reclassified to conform to our current year presentation. The 2016 and 2015 balance of interest expense relating to loss on early extinguishment of debt has been reclassified and presented separately on the consolidated statements of income. </font></div></div>
CY2017	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-bottom:16px;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Accounting Estimates </font></div><div style="line-height:120%;padding-bottom:16px;text-align:left;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The preparation of the consolidated financial statements in accordance with GAAP requires management to use estimates and assumptions that in certain circumstances affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities, and the reported revenues and expenses. Significant items subject to such estimates and assumptions include allocation of the purchase price of acquired real estate properties among tangible and intangible assets, determination of the useful life of real estate properties and other long-lived assets, valuation and impairment analysis of commercial real estate properties and other long-lived assets, estimate of tenant expense reimbursements, estimate of percentage of completion on construction contracts, valuation of the allowance for doubtful accounts, and valuation of derivative instruments, senior unsecured notes, mortgage notes payable, unsecured notes, unsecured revolving credit and term loan facilities, and equity based compensation. These estimates are prepared using management’s best judgment, after considering past, current, and expected events and economic conditions. Actual results could differ from those estimates. </font></div></div>

Files In Submission

Name	View Source	Status
0001628280-18-002433-index-headers.html	Edgar Link	pending
0001628280-18-002433-index.html	Edgar Link	pending
0001628280-18-002433.txt	Edgar Link	pending
0001628280-18-002433-xbrl.zip	Edgar Link	pending
esrop12-31x1710xk.htm	Edgar Link	pending
esrt-20171231.xml	Edgar Link	completed
esrt-20171231.xsd	Edgar Link	pending
esrt-20171231_cal.xml	Edgar Link	unprocessable
esrt-20171231_def.xml	Edgar Link	unprocessable
esrt-20171231_lab.xml	Edgar Link	unprocessable
esrt-20171231_pre.xml	Edgar Link	unprocessable
exhibit1022formofesrtindep.htm	Edgar Link	pending
exhibit211listofsubsidiari.htm	Edgar Link	pending
exhibit231consentesrop12-3.htm	Edgar Link	pending
exhibit311esrop12-31x17.htm	Edgar Link	pending
exhibit312esrop12-31x17.htm	Edgar Link	pending
exhibit321esrop12-31x17.htm	Edgar Link	pending
exhibit322esrop12-31x17.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
R1.htm	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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2016 Q4 Form 10-K Financial Statement

#000162828018002433 Filed on February 28, 2018

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$ESBA Empire State Realty OP, L.P. Stock $esba

2016 Q4 Form 10-K Financial Statement

#000162828018002433 Filed on February 28, 2018

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Files In Submission

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Empire State Realty OP, L.P. Stock $esba