v3.25.2
Cover - shares
 6 Months Ended
Jun. 30, 2025
Aug. 04, 2025
Document Information [Line Items]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2025  
Document Transition Report false  
Entity File Number 001-36106  
Entity Registrant Name EMPIRE STATE REALTY OP, L.P.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 45-4685158  
Entity Address, Address Line One 111 West 33rd Street  
Entity Address, Address Line Two 12th Floor  
Entity Address, City or Town New York  
Entity Address, State or Province NY  
Entity Address, Postal Zip Code 10120  
City Area Code 212  
Local Phone Number 687-8700  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Central Index Key 0001553079  
Current Fiscal Year End Date --12-31  
Amendment Flag false  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus Q2  
Series ES Operating Partnership Units Limited Partners    
Document Information [Line Items]    
Title of 12(b) Security Series ES operating partnership units  
Trading Symbol ESBA  
Security Exchange Name NYSEArca  
Entity Common Stock, Shares Outstanding   17,386,417
Series 60 Operating Partnership Units Limited Partners    
Document Information [Line Items]    
Title of 12(b) Security Series 60 operating partnership units  
Trading Symbol OGCP  
Security Exchange Name NYSEArca  
Entity Common Stock, Shares Outstanding   4,453,299
Series 250 operating partnership units    
Document Information [Line Items]    
Title of 12(b) Security Series 250 operating partnership units  
Trading Symbol FISK  
Security Exchange Name NYSEArca  
Entity Common Stock, Shares Outstanding   2,288,913