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Description of Business and Organization - Narrative (Details) ft² in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 ft² property property_unit parcel entity $ / shares | Feb. 01, 2023 property
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |  |
Area of real estate property (in sqft) | ft² | 9.7 |
Percentage of real estate property occupied | 85.20% |
Percentage of real estate property, including lease not yet commenced | 88.60% |
Number of entities to be treated as taxable REIT subsidiary of ESRT | entity | 2 |
Office Building |  |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |  |
Area of real estate property (in sqft) | ft² | 8.9 |
Percentage of real estate property occupied | 85.10% |
Percentage of real estate property, including lease not yet commenced | 88.30% |
Number of offices and properties | property | 12 |
Office Building | Manhattan |  |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |  |
Area of real estate property (in sqft) | ft² | 7.6 |
Number of offices and properties | 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 sqft) | ft² | 1.3 |
Number of offices and properties | property | 3 |
Office Building | Stamford, Connecticut |  |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |  |
Area of real estate property (in sqft) | ft² | 0.4 |
Development Parcel |  |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |  |
Number of offices and properties | parcel | 3 |
Office Building And Multifamily | Manhattan |  |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |  |
Area of real estate property (in sqft) | ft² | 0.5 |
Retail |  |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |  |
Percentage of real estate properties leased | 97.60% |
Retail | Manhattan and Westport, Connecticut |  |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |  |
Area of real estate property (in sqft) | ft² | 0.2 |
Retail | Manhattan |  |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |  |
Number of offices and properties | property | 4 |
Retail | Westport, Connecticut |  |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |  |
Number of offices and properties | property | 2 |
Retail | Westport, Connecticut | Disposal Group, Disposed of by Sale, Not Discontinued Operations | 69-97 and 103-107 Main Street | Subsequent Event |  |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |  |
Number of offices and properties | property |  | 2
multi-family |  |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |  |
Number of offices and properties | property | 3 |
Percentage of real estate properties leased | 96.30% |
Number of property units | property_unit | 721 |
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% |
ESRT | 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) | 59.40% |
Common Class A | ESRT |  |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |  |
Par value (in dollars per share) | $ / shares | $ 0.01 |

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