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Description of Business and Organization (Details) ft² in Millions | 6 Months Ended
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Jun. 30, 2022 ft² office_property property_unit multifamily_property parcel
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |
Area of real estate property (in square feet) | 9.9
Empire state realty OP | Empire state realty trust |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |
OP units owned by the company (as a percent) | 59.50%
Office Building |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |
Area of real estate property (in square feet) | 9.2
Number of offices and properties | office_property | 13
Office Building | Manhattan |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |
Area of real estate property (in square feet) | 7.6
Number of offices and properties | office_property | 9
Office Building | Fairfield County, Connecticut and Westchester County, New York |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |
Area of real estate property (in square feet) | 1.6
Number of offices and properties | office_property | 4
Development Parcel |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |
Number of offices and properties | parcel | 3
Retail Site | Manhattan and Westport, Connecticut |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |
Area of real estate property (in square feet) | 0.2
Retail Site | Manhattan |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |
Area of real estate property (in square feet) | 0.5
Number of offices and properties | office_property | 4
Retail Site | Westport, Connecticut |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |
Number of offices and properties | office_property | 2
Other Property | Stamford, Connecticut |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |
Area of real estate property (in square feet) | 0.4
Multifamily |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |
Number of offices and properties | multifamily_property | 2
Number of property units | property_unit | 625

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- Definition [Line Items] for Organization, Consolidation and Presentation of Financial Statements Disclosure [Table] + References No definition available. + Details
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- Definition Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 272 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055 + Details
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