Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2016	Nov. 01, 2016
Entity Registrant Name	Empire State Realty OP, L.P.
Entity Central Index Key	0001553079
Document Type	10-Q
Current Fiscal Year End Date	--12-31
Amendment Flag	false
Document Period End Date	Sep. 30, 2016
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q3
Entity Filer Category	Large Accelerated Filer
Series ES operating partnership units
Entity Common Stock, Shares Outstanding		36,023,638
Series 60 operating partnership units
Entity Common Stock, Shares Outstanding		9,753,105
Series 250 operating partnership units
Entity Common Stock, Shares Outstanding		4,809,410