Noncontrolling Interests - Change in Carrying Value (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Change in the carrying value of all noncontrolling interests
Carrying value at beginning of the period			$ 165,502
Allocation of net income	$ 1,577	$ 1,738	3,192	$ 2,844
Carrying value at end of the period	$ 165,277		$ 165,277
Realty Income, L.P.
Change in the carrying value of all noncontrolling interests
Number of partnership units outstanding (in units)	1,795,167		1,795,167		1,795,167
Non-controlling interests
Change in the carrying value of all noncontrolling interests
Carrying value at beginning of the period			$ 165,502
Contributions			1,281
Distributions			(4,698)
Allocation of net income			3,192
Carrying value at end of the period	$ 165,277		165,277
Non-controlling interests | Realty Income, L.P.
Change in the carrying value of all noncontrolling interests
Carrying value at beginning of the period			114,072
Contributions			0
Distributions			(2,842)
Allocation of net income			2,782
Carrying value at end of the period	114,012		114,012
Non-controlling interests | Other Noncontrolling Interests
Change in the carrying value of all noncontrolling interests
Carrying value at beginning of the period			51,430
Contributions			1,281
Distributions			(1,856)
Allocation of net income			410
Carrying value at end of the period	$ 51,265		$ 51,265