Annual report pursuant to Section 13 and 15(d)

Orion Office REIT, Fair Value Measures - Assets at Fair Value Measured on a Non-recurring Basis (Details)

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Orion Office REIT, Fair Value Measures - Assets at Fair Value Measured on a Non-recurring Basis (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets of properties held and used $ 50,857 $ 59,339
Assets of properties held for sale 2,502 0
Assets 53,359 59,339
Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets of properties held and used 0 0
Assets of properties held for sale 0 0
Assets 0 0
Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets of properties held and used 38,900 0
Assets of properties held for sale 2,502 0
Assets 41,402 0
Level 3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets of properties held and used 11,957 59,339
Assets of properties held for sale 0 0
Assets $ 11,957 $ 59,339