XML 23 R37.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Debt - Schedule of Long term Debt (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended |
--- | --- | ---
Mar. 31, 2015 | Dec. 31, 2014
Debt Instrument [Line Items] |  |
Term loan and credit facility | 0 us-gaap_LineOfCredit | $ 470,000 us-gaap_LineOfCredit
Total | 855,032 us-gaap_LongTermDebt | 903,985 us-gaap_LongTermDebt
Mortgages [Member] |  |
Debt Instrument [Line Items] |  |
Fixed rate mortgage debt | 743,979 us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember | 746,916 us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember
Floating rate mortgage debt | 91,000 us-gaap_LongtermDebtPercentageBearingVariableInterestAmount / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember | 135,146 us-gaap_LongtermDebtPercentageBearingVariableInterestAmount / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember
Total mortgage debt | 834,979 esrt_LongTermDebtFixedRateDebtandFloatingRateDebtLessCreditFacilityandUnsecuredNotesTotal / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember | 882,062 esrt_LongTermDebtFixedRateDebtandFloatingRateDebtLessCreditFacilityandUnsecuredNotesTotal / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember
Total principal | 1,599,979 us-gaap_DebtInstrumentCarryingAmount / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember | 1,602,062 us-gaap_DebtInstrumentCarryingAmount / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember
Unamortized premiums, net of unamortized discount | 8,388 us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember | 9,590 us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember
Total | 1,608,367 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember | 1,611,652 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember
Mortgages [Member] | 10 Union Square [Member] |  |
Debt Instrument [Line Items] |  |
Fixed rate mortgage debt | 20,551 us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = esrt_FixedRateDebt10UnionSquareMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember | 20,641 us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = esrt_FixedRateDebt10UnionSquareMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember
Stated Rate | 6.00%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = esrt_FixedRateDebt10UnionSquareMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember |
Effective Rate | 6.67%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_DebtInstrumentAxis = esrt_FixedRateDebt10UnionSquareMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember |
Mortgages [Member] | 10 Bank Street [Member] |  |
Debt Instrument [Line Items] |  |
Fixed rate mortgage debt | 32,692 us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = esrt_FixedRateDebt10BankStreetMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember | 32,847 us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = esrt_FixedRateDebt10BankStreetMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember
Stated Rate | 5.72%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = esrt_FixedRateDebt10BankStreetMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember |
Effective Rate | 6.21%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_DebtInstrumentAxis = esrt_FixedRateDebt10BankStreetMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember |
Mortgages [Member] | 1542 Third Avenue [Member] |  |
Debt Instrument [Line Items] |  |
Fixed rate mortgage debt | 18,525 us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = esrt_FixedRateDebt1542ThirdAvenueMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember | 18,628 us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = esrt_FixedRateDebt1542ThirdAvenueMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember
Stated Rate | 5.90%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = esrt_FixedRateDebt1542ThirdAvenueMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember |
Effective Rate | 6.50%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_DebtInstrumentAxis = esrt_FixedRateDebt1542ThirdAvenueMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember |
Mortgages [Member] | First Stamford Place [Member] |  |
Debt Instrument [Line Items] |  |
Fixed rate mortgage debt | 241,384 us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = esrt_FixedRateDebtFirstStamfordPlaceMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember | 242,294 us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = esrt_FixedRateDebtFirstStamfordPlaceMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember
Stated Rate | 5.65%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = esrt_FixedRateDebtFirstStamfordPlaceMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember |
Effective Rate | 6.14%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_DebtInstrumentAxis = esrt_FixedRateDebtFirstStamfordPlaceMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember |
Mortgages [Member] | 1010 Third Avenue and 77 West 55th Street [Member] |  |
Debt Instrument [Line Items] |  |
Fixed rate mortgage debt | 27,465 us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = esrt_FixedRateDebt1010ThirdAvenueand77West55thStreetMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember | 27,595 us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = esrt_FixedRateDebt1010ThirdAvenueand77West55thStreetMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember
Stated Rate | 5.69%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = esrt_FixedRateDebt1010ThirdAvenueand77West55thStreetMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember |
Effective Rate | 6.36%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_DebtInstrumentAxis = esrt_FixedRateDebt1010ThirdAvenueand77West55thStreetMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember |
Mortgages [Member] | 383 Main Avenue [Member] |  |
Debt Instrument [Line Items] |  |
Fixed rate mortgage debt | 29,709 us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = esrt_FixedRateDebt383MainAvenueMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember | 29,852 us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = esrt_FixedRateDebt383MainAvenueMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember
Stated Rate | 5.59%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = esrt_FixedRateDebt383MainAvenueMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember |
Effective Rate | 5.97%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_DebtInstrumentAxis = esrt_FixedRateDebt383MainAvenueMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember |
Mortgages [Member] | 1333 Broadway [Member] |  |
Debt Instrument [Line Items] |  |
Fixed rate mortgage debt | 69,348 us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = esrt_FixedRateDebt1333BroadwayMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember | 69,575 us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = esrt_FixedRateDebt1333BroadwayMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember
Stated Rate | 6.32%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = esrt_FixedRateDebt1333BroadwayMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember |
Effective Rate | 3.80%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_DebtInstrumentAxis = esrt_FixedRateDebt1333BroadwayMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember |
Mortgages [Member] | 1400 Broadway - First Lien [Member] |  |
Debt Instrument [Line Items] |  |
Fixed rate mortgage debt | 69,455 us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = esrt_A1400BroadwayFirstLienMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember | 69,689 us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = esrt_A1400BroadwayFirstLienMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember
Stated Rate | 6.12%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = esrt_A1400BroadwayFirstLienMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember |
Effective Rate | 3.14%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_DebtInstrumentAxis = esrt_A1400BroadwayFirstLienMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember |
Mortgages [Member] | 1400 Broadway - Second Lien [Member] |  |
Debt Instrument [Line Items] |  |
Fixed rate mortgage debt | 9,753 us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = esrt_A1400BroadwaySecondLienMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember | 9,803 us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = esrt_A1400BroadwaySecondLienMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember
Stated Rate | 3.35%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = esrt_A1400BroadwaySecondLienMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember |
Effective Rate | 3.35%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_DebtInstrumentAxis = esrt_A1400BroadwaySecondLienMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember |
Mortgages [Member] | 112 West 34th Street - First Lien [Member] |  |
Debt Instrument [Line Items] |  |
Fixed rate mortgage debt | 77,221 us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = esrt_A112West34thStreetFirstLienMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember | 77,484 us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = esrt_A112West34thStreetFirstLienMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember
Stated Rate | 6.01%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = esrt_A112West34thStreetFirstLienMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember |
Effective Rate | 3.08%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_DebtInstrumentAxis = esrt_A112West34thStreetFirstLienMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember |
Mortgages [Member] | 112 West 34th Street - Second Lien [Member] |  |
Debt Instrument [Line Items] |  |
Fixed rate mortgage debt | 9,733 us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = esrt_A112West34thStreetSecondLienMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember | 9,763 us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = esrt_A112West34thStreetSecondLienMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember
Stated Rate | 6.56%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = esrt_A112West34thStreetSecondLienMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember |
Effective Rate | 3.36%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_DebtInstrumentAxis = esrt_A112West34thStreetSecondLienMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember |
Mortgages [Member] | 1350 Broadway - First Lien Mortgage Loan [Member] |  |
Debt Instrument [Line Items] |  |
Fixed rate mortgage debt | 38,765 us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = esrt_FixedRateDebt1350BroadwayFirstLienMortgageLoanMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember | 38,900 us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = esrt_FixedRateDebt1350BroadwayFirstLienMortgageLoanMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember
Stated Rate | 5.87%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = esrt_FixedRateDebt1350BroadwayFirstLienMortgageLoanMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember |
Effective Rate | 3.78%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_DebtInstrumentAxis = esrt_FixedRateDebt1350BroadwayFirstLienMortgageLoanMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember |
Mortgages [Member] | Metro Center [Member] |  |
Debt Instrument [Line Items] |  |
Fixed rate mortgage debt | 99,378 us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = esrt_MetroCenterDebtMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember | 99,845 us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = esrt_MetroCenterDebtMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember
Stated Rate | 3.59%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = esrt_MetroCenterDebtMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember |
Effective Rate | 3.71%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_DebtInstrumentAxis = esrt_MetroCenterDebtMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember |
Mortgages [Member] | One Grand Central Place - Third Lien [Member] |  |
Debt Instrument [Line Items] |  |
Effective Rate | 1.53%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_DebtInstrumentAxis = esrt_FloatingRateDebtOneGrandCentralPlaceThirdLienMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember |
Mortgages [Member] | One Grand Central Place - Third Lien [Member] | LIBOR [Member] |  |
Debt Instrument [Line Items] |  |
Basis spread on variable rate | 1.35%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = esrt_FloatingRateDebtOneGrandCentralPlaceThirdLienMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember |
Mortgages [Member] | One Grand Central Place - Third Lien [Member] | Prime Rate [Member] |  |
Debt Instrument [Line Items] |  |
Floating rate mortgage debt | 91,000 us-gaap_LongtermDebtPercentageBearingVariableInterestAmount / us-gaap_DebtInstrumentAxis = esrt_FloatingRateDebtOneGrandCentralPlaceThirdLienMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember / us-gaap_VariableRateAxis = us-gaap_PrimeRateMember | 91,000 us-gaap_LongtermDebtPercentageBearingVariableInterestAmount / us-gaap_DebtInstrumentAxis = esrt_FloatingRateDebtOneGrandCentralPlaceThirdLienMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember / us-gaap_VariableRateAxis = us-gaap_PrimeRateMember
Mortgages [Member] | Floating Rate Debt - 1350 Broadway - 2nd Lien Mortgage Loan [Member] |  |
Debt Instrument [Line Items] |  |
Floating rate mortgage debt | 0 us-gaap_LongtermDebtPercentageBearingVariableInterestAmount / us-gaap_DebtInstrumentAxis = esrt_FloatingRateDebt1350Broadway2ndLienMortgageLoanMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember | 44,146 us-gaap_LongtermDebtPercentageBearingVariableInterestAmount / us-gaap_DebtInstrumentAxis = esrt_FloatingRateDebt1350Broadway2ndLienMortgageLoanMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember
Mortgages [Member] | Secured Revolving Credit Facility [Member] |  |
Debt Instrument [Line Items] |  |
Floating rate mortgage debt | 0 us-gaap_LongtermDebtPercentageBearingVariableInterestAmount / us-gaap_DebtInstrumentAxis = esrt_FloatingRateDebtSecuredRevolvingCreditFacilityMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember | 170,000 us-gaap_LongtermDebtPercentageBearingVariableInterestAmount / us-gaap_DebtInstrumentAxis = esrt_FloatingRateDebtSecuredRevolvingCreditFacilityMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember
Mortgages [Member] | Secured Term Credit Facility [Member] |  |
Debt Instrument [Line Items] |  |
Floating rate mortgage debt | 0 us-gaap_LongtermDebtPercentageBearingVariableInterestAmount / us-gaap_DebtInstrumentAxis = esrt_FloatingRateDebtSecuredTermCreditFacilityMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember | 300,000 us-gaap_LongtermDebtPercentageBearingVariableInterestAmount / us-gaap_DebtInstrumentAxis = esrt_FloatingRateDebtSecuredTermCreditFacilityMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember
Convertible Debt [Member] | Exchangeable Senior Notes due August 15, 2019 [Member] |  |
Debt Instrument [Line Items] |  |
Fixed rate mortgage debt | 250,000 us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = esrt_ExchangeableSeniorNotesdueAugust152019Member / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember | 250,000 us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = esrt_ExchangeableSeniorNotesdueAugust152019Member / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember
Stated Rate | 2.625%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = esrt_ExchangeableSeniorNotesdueAugust152019Member / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember |
Effective Rate | 3.93%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_DebtInstrumentAxis = esrt_ExchangeableSeniorNotesdueAugust152019Member / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember |
Senior Notes [Member] | Series A Senior Notes due 2025 [Member] |  |
Debt Instrument [Line Items] |  |
Total | 100,000 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = esrt_SeriesASeniorNotesdue2025Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember | 0 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = esrt_SeriesASeniorNotesdue2025Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember
Stated Rate | 3.93%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = esrt_SeriesASeniorNotesdue2025Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |
Effective Rate | 3.93%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_DebtInstrumentAxis = esrt_SeriesASeniorNotesdue2025Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |
Senior Notes [Member] | Series B Senior Notes due 2027 [Member] |  |
Debt Instrument [Line Items] |  |
Total | 125,000 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = esrt_SeriesBSeniorNotesdue2027Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember | 0 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = esrt_SeriesBSeniorNotesdue2027Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember
Stated Rate | 4.09%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = esrt_SeriesBSeniorNotesdue2027Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |
Effective Rate | 4.09%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_DebtInstrumentAxis = esrt_SeriesBSeniorNotesdue2027Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |
Senior Notes [Member] | Series C Senior Notes due 2030 [Member] |  |
Debt Instrument [Line Items] |  |
Total | 125,000 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = esrt_SeriesCSeniorNotesdue2030Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember | 0 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = esrt_SeriesCSeniorNotesdue2030Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember
Stated Rate | 4.18%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = esrt_SeriesCSeniorNotesdue2030Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |
Effective Rate | 4.18%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_DebtInstrumentAxis = esrt_SeriesCSeniorNotesdue2030Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |
Revolving Credit Facility [Member] | Unsecured Revolving Credit Facility [Member] |  |
Debt Instrument [Line Items] |  |
Term loan and credit facility | 165,000 us-gaap_LineOfCredit / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_DebtInstrumentAxis = esrt_UnsecuredRevolvingCreditFacilityMember | $ 0 us-gaap_LineOfCredit / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_DebtInstrumentAxis = esrt_UnsecuredRevolvingCreditFacilityMember
Effective Rate | 1.33%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_DebtInstrumentAxis = esrt_UnsecuredRevolvingCreditFacilityMember |
Revolving Credit Facility [Member] | Unsecured Revolving Credit Facility [Member] | LIBOR [Member] |  |
Debt Instrument [Line Items] |  |
Basis spread on variable rate | 1.15%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_DebtInstrumentAxis = esrt_UnsecuredRevolvingCreditFacilityMember / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember |

X
- Definition Long Term Debt, Fixed Rate Debt and Floating Rate Debt, Total + References No definition available. + Details
Name: | esrt_LongTermDebtFixedRateDebtandFloatingRateDebtLessCreditFacilityandUnsecuredNotesTotal
Namespace Prefix: | esrt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 + Details
Name: | us-gaap_DebtInstrumentCarryingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateEffectivePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of debt discount (net of debt premium) that was originally recognized at the issuance of the instrument that has yet to be amortized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28555-108399 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28567-108399 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400 + Details
Name: | us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_LineOfCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 22 -Article 5 + Details
Name: | us-gaap_LongTermDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate. + References No definition available. + Details
Name: | us-gaap_LongtermDebtPercentageBearingFixedInterestAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a rate subject to change from time to time. + References No definition available. + Details
Name: | us-gaap_LongtermDebtPercentageBearingVariableInterestAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_ConvertibleDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_MortgagesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |