Noncontrolling Interests - Narrative (Details) $ in Thousands	1 Months Ended					12 Months Ended
	Dec. 31, 2021 USD ($) property shares	Nov. 30, 2021 USD ($) property shares	May 31, 2021 joint_venture	Dec. 31, 2020 joint_venture	Dec. 31, 2019 property	Dec. 31, 2022 USD ($) noncontrollingInterest shares	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2022 joint_venture	Dec. 31, 2022	Dec. 31, 2022 jointVenture
Noncontrolling interests
Number of noncontrolling interests consolidated | noncontrollingInterest						4
Number of development joint ventures									2		2
Number of development joint ventures acquired | joint_venture			1	1
Contributions by noncontrolling interests						$ 51,221	$ 43,390	$ 3,168
Conversion ratio						1.02934
Number of properties acquired by acquiring a controlling interest | property					9
Realty Income, L.P.
Noncontrolling interests
Third-party partnership ownership interest (as a percent)										6.90%
Ownership interest (as a percent)										93.10%
Development Joint Venture, Established May 2021
Noncontrolling interests
Ownership interest (as a percent)										89.60%
Development Joint Venture, Established December 2020
Noncontrolling interests
Ownership interest (as a percent)										94.50%
Joint Venture, Acquired December 2019
Noncontrolling interests
Ownership interest (as a percent)										89.90%
Realty Income, L.P.
Noncontrolling interests
Number of partnership units issued (in units) | shares	240,586	300,604				734,458
Number of properties acquired in connection with issuance of partnership units | property	1	7
Contributions by noncontrolling interests	$ 16,600	$ 20,400
Realty Income, L.P. | VEREIT Inc
Noncontrolling interests
Number of partnership units issued (in units) | shares		56,400
Contributions by noncontrolling interests		$ 1,800