v3.22.2.2
Document and Entity Information Document
Nov. 30, 2022
Cover [Abstract]  
Document Type 8-K
Document Period End Date Nov. 30, 2022
Entity Registrant Name Griffin Realty Trust, Inc.
Entity Central Index Key 0001600626
Amendment Flag false
Entity File Number 000-55605
Entity Incorporation, State or Country Code MD
Entity Tax Identification Number 46-4654479
Entity Address, Address Line One 1520 E. Grand Avenue
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
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false