Equity - Shares and Units (Details)	12 Months Ended
	Dec. 31, 2023 vote class shares	Dec. 31, 2022 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
OP Unit redemption for cash term (in years)	1 year
OP Unit exchange ratio to common stock	1
OP units owned by the company and other partners (in shares)	107,900,200
Number of classes | class	2
Empire state realty trust
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exchange ratio	0.020
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)	60.20%
Other partners, certain directors, officers and other members of executive management | Empire state realty OP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
OP units not owned by other partner (as a percent)	39.80%
Class A Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock outstanding (in shares)	162,061,947	160,139,000
Class B Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock outstanding (in shares)	984,317	990,000
Number of voting rights | vote	50