Capital - Shares and Units (Details) shares in Thousands	12 Months Ended
Dec. 31, 2025 class vote shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of classes of stock \| class	2
Empire State Realty Trust
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exchange ratio	0.020
Number of voting rights \| vote	50
Empire State Realty Trust \| Empire State Realty OP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
OP units owned by the company (as a percent)	61.40%
Other Partners, Company Directors, Members Of Senior Management And Other Employees \| Empire State Realty OP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
OP units not owned by the Company (as a percent)	38.60%
Operating Partnership
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
OP units not owned by the Company (in shares)	107,225
Common Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock outstanding (in shares)	169,523
Common Class B
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock outstanding (in shares)	972

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