XML 72 R56.htm IDEA: XBRL DOCUMENT
v3.21.2

Subsequent Events (Details) $ in Millions |  | 3 Months Ended |
--- | --- | --- | ---
Jul. 29, 2021 USD ($) ft² | Sep. 30, 2021 USD ($) | Jun. 30, 2021 ft²
Subsequent Event [Line Items] |  |  |
Area of real estate property (in square feet) |  |  | 10,100,000
Forecast |  |  |
Subsequent Event [Line Items] |  |  |
Straight line rent receivables written-off | $ |  | $ 1.6 |
Subsequent Event |  |  |
Subsequent Event [Line Items] |  |  |
Letter of credit converted to cash | $ | $ 17.0 |  |
Subsequent Event | Subsidiaries | GBG USA Inc. |  |  |
Subsequent Event [Line Items] |  |  |
Area of real estate property (in square feet) | 353,325 |  |
Proportion of rentable square feet in total portfolio (as a percent) | 3.50% |  |
Proportion of annualized rent in total portfolio (as a percent) | 3.60% |  |
Area of real estate property that was not sublet to tenants (in square feet) | 191,000 |  |
Proportion of rentable square feet in total portfolio that was not sublet to tenants (as a percent) | 1.90% |  |

X
- Definition Area of Real Estate Property, Area Not Sublet to Tenants + References No definition available. + Details
Name: | esrt_AreaOfRealEstatePropertyAreaNotSubletToTenants
Namespace Prefix: | esrt_
Data Type: | dtr-types:areaItemType
Balance Type: | na
Period Type: | instant

X
- Definition Letter of Credit Converted to Cash + References No definition available. + Details
Name: | esrt_LetterOfCreditConvertedToCash
Namespace Prefix: | esrt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Proportion of Annualized Rent in Total Portfolio, Percent + References No definition available. + Details
Name: | esrt_ProportionOfAnnualizedRentInTotalPortfolioPercent
Namespace Prefix: | esrt_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Proportion of Rentable Square Feet in Total Portfolio, Not Sublet to Tenants, Percent + References No definition available. + Details
Name: | esrt_ProportionOfRentableSquareFeetInTotalPortfolioNotSubletToTenantsPercent
Namespace Prefix: | esrt_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Proportion of Rentable Square Feet in Total Portfolio, Percent + References No definition available. + Details
Name: | esrt_ProportionOfRentableSquareFeetInTotalPortfolioPercent
Namespace Prefix: | esrt_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Area of a real estate property. + References No definition available. + Details
Name: | us-gaap_AreaOfRealEstateProperty
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:areaItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of the adjustment to rental revenues to measure escalating leasing revenues on a straight line basis. + References No definition available. + Details
Name: | us-gaap_StraightLineRentAdjustments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_StatementScenarioAxis=srt_ScenarioForecastMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=srt_SubsidiariesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=esrt_GBGUSAIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |