Noncontrolling Interests - Schedule of the Change in the Carrying Value of all Noncontrolling Interests (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Change in the carrying value of all noncontrolling interests
Carrying value at beginning of the period	$ 210,948
Contributions	1,342
Distributions	(3,011)
Allocation of net income	1,647	$ 1,615
Carrying value at end of the period	210,926
Realty Income, L.P. units
Change in the carrying value of all noncontrolling interests
Carrying value at beginning of the period	167,803
Contributions	0
Distributions	(2,210)
Allocation of net income	1,486
Carrying value at end of the period	$ 167,079
Number of partnership units outstanding (in shares)	2,681,808		2,681,808
Other Noncontrolling Interests
Change in the carrying value of all noncontrolling interests
Carrying value at beginning of the period	$ 43,145
Contributions	1,342
Distributions	(801)
Allocation of net income	161
Carrying value at end of the period	$ 43,847