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Cover - USD ($)
$ in Billions
 12 Months Ended
Dec. 31, 2023
Feb. 20, 2024
Jun. 30, 2023
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2023    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 001-41686    
Entity Registrant Name Peakstone Realty Trust    
Entity Incorporation, State or Country Code MD    
Entity Tax Identification Number 46-4654479    
Entity Address, Address Line One 1520 E. Grand Ave    
Entity Address, City or Town El Segundo    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 90245    
City Area Code 310    
Local Phone Number 606-3200    
Title of 12(b) Security Common shares, $0.0001 par value per share    
Trading Symbol PKST    
Security Exchange Name NYSE    
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    
Entity Shell Company false    
Document Financial Statement Error Correction false    
Entity Public Float     $ 1.0
Entity Common Stock, Shares Outstanding   36,305,957  
Documents Incorporated by Reference
Documents Incorporated by Reference:
Portions of the registrant’s definitive proxy statement for the registrant’s 2024 Annual Meeting of Shareholders, to be filed within 120 days after the close of the registrant’s fiscal year, are incorporated by reference into Part III (Items 10, 11, 12, 13 and 14) of this Annual Report on Form 10-K.
    
Entity Central Index Key 0001600626    
Amendment Flag false    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY