Noncontrolling Interests - Schedule of the Change in the Carrying Value of all Noncontrolling Interests (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Change in the carrying value of all noncontrolling interests
Carrying value at beginning of the period			$ 210,948
Contributions			2,041
Distributions			(9,007)
Allocation of net income	$ 1,903	$ 1,639	5,642	$ 4,831
Carrying value at end of the period	209,624		209,624
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			(6,664)
Allocation of net income			5,260
Carrying value at end of the period	$ 166,399		$ 166,399
Number of partnership units outstanding (in shares)	2,681,808		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			2,041
Distributions			(2,343)
Allocation of net income			382
Carrying value at end of the period	$ 43,225		$ 43,225