Quarterly report pursuant to Section 13 or 15(d)

Orion Office REIT, Organization (Details)

v3.22.2.2
Orion Office REIT, Organization (Details)
$ / shares in Units, ft² in Millions, $ in Millions
Nov. 12, 2021
USD ($)
Sep. 30, 2022
ft²
state
property
$ / shares
Dec. 31, 2021
$ / shares
Nov. 10, 2021
$ / shares
Jul. 15, 2021
$ / shares
Real Estate Properties [Line Items]          
Distributions to realty income | $ $ 595.0        
Common stock, par value (in dollars per share) | $ / shares   $ 0.001 $ 0.001 $ 0.001 $ 0.01
Number of Properties | property   87      
Area of real estate property | ft²   10.0      
Number of states with real estate properties owned | state   29      
Arch Street Joint Venture          
Real Estate Properties [Line Items]          
Number of Properties | property   6      
Area of real estate property | ft²   1.0      
Number of states with real estate properties owned | state   6