Annual report pursuant to Section 13 and 15(d)

Orion Office REIT, Leases - Lessee Narrative (Details)

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Orion Office REIT, Leases - Lessee Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Lessee, Lease, Description [Line Items]      
Lessee, operating lease, discount rate 3.85%    
Operating lease, cost $ 1.3 $ 1.0 $ 0.3
Minimum      
Lessee, Lease, Description [Line Items]      
Lessee, operating lease, remaining lease term 1 year 10 months 24 days    
Maximum      
Lessee, Lease, Description [Line Items]      
Lessee, operating lease, remaining lease term 61 years