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Commitments and Contingencies - Schedule of Percent of Total Rental Revenue (Details) - Rental revenue - Customer concentration risk	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Empire State Building
Concentration Risk [Line Items]
Concentration risk percentage (as a percent)	29.60%	29.90%	31.70%
One Grand Central Place
Concentration Risk [Line Items]
Concentration risk percentage (as a percent)	12.80%	12.40%	12.60%
111 West 33rd Street
Concentration Risk [Line Items]
Concentration risk percentage (as a percent)	10.80%	11.20%	11.30%

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- Definition

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