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Cover - USD ($)
 12 Months Ended
Dec. 31, 2024
Feb. 26, 2025
Jun. 30, 2024
Document Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2024    
Current Fiscal Year End Date --12-31    
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 Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
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    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Documents Incorporated by Reference
Our sole general partner is Empire State Realty Trust, Inc. Portions of Empire State Realty Trust, Inc.'s Proxy Statement for its 2024 Annual Stockholders' Meeting (which is scheduled to be held on May 15, 2025 in-person) to be filed within 120 days after the end of Empire State Realty Trust, Inc.'s fiscal year are incorporated by reference into Part III of this Annual Report on Form 10-K.
    
Entity Central Index Key 0001553079    
Amendment Flag false    
Document Fiscal Year Focus 2024    
Document Fiscal Period Focus FY    
Entity Public Float     $ 0
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   17,960,163  
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   4,571,986  
Series 250 Operating Partnership Units Limited Partners      
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   2,376,854