Quarterly report pursuant to Section 13 or 15(d)

Orion Office REIT, Fair Value Measures - Narrative (Details)

v3.22.2.2
Orion Office REIT, Fair Value Measures - Narrative (Details)
3 Months Ended 9 Months Ended
Sep. 30, 2022
USD ($)
Sep. 30, 2021
USD ($)
Sep. 30, 2022
USD ($)
property
Sep. 30, 2021
USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Number of properties | property     10  
Impairments $ 44,801,000 $ 0 $ 54,161,000 $ 0
Impairment, Long-Lived Asset, Held-for-Use     44,000,000  
Impairment of properties held for sale     1,600,000  
Impairment of properties disposed of     $ 8,600,000  
Assets Impaired During The Nine Months Ended September 30 2022 | Estimated Sales Price        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Number of properties | property     8  
Assets Impaired During The Nine Months Ended September 30 2022 | Discount Rate and Capitalization Rate        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Number of properties | property     2  
Assets Impaired During The Nine Months Ended September 30 2022 | Weighted Average | Discount Rate        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Alternative investment, measurement input 0.085   0.085  
Assets Impaired During The Nine Months Ended September 30 2022 | Weighted Average | Capitalization Rate        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Alternative investment, measurement input 0.080   0.080