Description of Business and Organization (Details) ft² in Millions	3 Months Ended
	Mar. 31, 2024 ft² office_property parcel property_unit $ / shares
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)	60.10%
ESRT \| Common Class A
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Par value (in dollars per share) \| $ / shares	$ 0.01
Office Building
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Area of real estate property (in square feet)	8.6
Number of offices and properties \| office_property	11
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 \| Stamford, Connecticut
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Area of real estate property (in square feet)	1.1
Number of offices and properties \| office_property	2
Retail Site
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Area of real estate property (in square feet)	0.7
Multifamily
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of property units \| property_unit	727
Multifamily \| New York City
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of property units \| property_unit	727
Development Parcel
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of offices and properties \| parcel	3

Empire State Realty OP, L.P. 10-Q