Organization (Details)		9 Months Ended
	Apr. 29, 2021 $ / shares	Sep. 30, 2021 $ / shares	Dec. 31, 2020 $ / shares
Real Estate Properties [Line Items]
Common stock, par value (in dollars per share)		$ 0.01	$ 0.01
Realty Income Corporation [Member]
Real Estate Properties [Line Items]
Common stock, par value (in dollars per share)	$ 0.01
Business combination, share conversion ratio	0.705
VEREIT Operating Partnership, L.P. [Member]
Real Estate Properties [Line Items]
General partner ownership interest in OP		99.90%
Partnership units, holding period until right to redeem		1 year