Orion Office REIT Inc. Quarterly report pursuant to Section 13 or 15(d)

VEREIT Office Assets, Real Estate Investments and Related Intangibles - Impairments (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($) property	Sep. 30, 2022 USD ($) property	Sep. 30, 2021 USD ($) property
Real Estate Properties [Line Items]
Number of properties \| property			10
Provisions for impairment \| $	$ 44,801,000	$ 0	$ 54,161,000	$ 0
VEREIT Office Assets
Real Estate Properties [Line Items]
Number of properties \| property		3		4
Provisions for impairment \| $		$ 6,440,000		$ 28,064,000
VEREIT Office Assets \| Discount Rate \| Assets Impaired During The Three Months Ended September 30, 2021 \| Weighted Average
Real Estate Properties [Line Items]
Alternative investment, measurement input		0.097		0.097
VEREIT Office Assets \| Discount Rate \| Assets Impaired During The Nine Months Ended September 30, 2021 \| Weighted Average
Real Estate Properties [Line Items]
Alternative investment, measurement input		0.090		0.090
VEREIT Office Assets \| Capitalization Rate \| Assets Impaired During The Three Months Ended September 30, 2021 \| Weighted Average
Real Estate Properties [Line Items]
Alternative investment, measurement input		0.092		0.092
VEREIT Office Assets \| Capitalization Rate \| Assets Impaired During The Nine Months Ended September 30, 2021 \| Weighted Average
Real Estate Properties [Line Items]
Alternative investment, measurement input		0.085		0.085