Annual report pursuant to Section 13 and 15(d)

Orion Office REIT, Debt, Net - Schedule of Debt (Details)

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Orion Office REIT, Debt, Net - Schedule of Debt (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Debt [Roll Forward]      
Total debt, beginning balance $ 525,982    
Debt issuance principal amount 175,000    
Repayments, extinguishment and assumptions of debt, net (233,496)    
Accretion and Amortization 3,974 $ 4,364 $ 728
Accretion and Amortization 1,370    
Total debt, ending balance 468,856 525,982  
Mortgages payable      
Debt [Roll Forward]      
Outstanding balance, beginning 355,000    
Deferred costs, beginning balance (2,833)    
Total debt, beginning balance 352,167    
Debt issuance outstanding balance amount 0    
Debt issuance, deferred cost 0    
Debt issuance principal amount 0    
Repayments, extinguishment and assumptions outstanding balance amount 0    
Repayments, extinguishment and assumptions of debt, deferred costs, amount 0    
Repayments, extinguishment and assumptions of debt, net 0    
Accretion and Amortization 689    
Outstanding balance, ending 355,000 355,000  
Deferred costs, ending balance (2,144) (2,833)  
Total debt, ending balance 352,856 352,167  
Credit facility term loan      
Debt [Roll Forward]      
Outstanding balance, beginning 175,000    
Deferred costs, beginning balance (1,185)    
Total debt, beginning balance 173,815    
Debt issuance outstanding balance amount 0    
Debt issuance, deferred cost 0    
Debt issuance principal amount 0    
Repayments, extinguishment and assumptions outstanding balance amount (175,000)    
Repayments, extinguishment and assumptions of debt, deferred costs, amount 504    
Repayments, extinguishment and assumptions of debt, net (174,496)    
Accretion and Amortization 681    
Outstanding balance, ending 0 175,000  
Deferred costs, ending balance 0 (1,185)  
Total debt, ending balance 0 173,815  
Credit facility revolver      
Debt [Roll Forward]      
Total debt, beginning balance 0    
Debt issuance principal amount 175,000    
Repayments, extinguishment and assumptions of debt, net (59,000)    
Accretion and Amortization 0    
Total debt, ending balance $ 116,000 $ 0