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Amount of Net Income (Loss) attributable to noncontrolling interest.

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Noncontrolling Interests - Change in Carrying Value (Details) - USD ($) $ in Thousands							12 Months Ended
	Dec. 30, 2021	Nov. 30, 2021	Nov. 01, 2021	Mar. 28, 2019	Apr. 30, 2018	Mar. 30, 2018	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Change in the carrying value of all noncontrolling interests
Carrying value at beginning of the period							$ 32,247
Reallocation of equity							0	$ 0	$ 0
Additions to noncontrolling interest							43,390	3,168	11,370
Allocation of net income							1,291	1,020	996
Carrying value at end of the period							76,826	32,247
Realty Income, L.P. units
Change in the carrying value of all noncontrolling interests
Additions to noncontrolling interest	$ 16,600	$ 20,400		$ 6,300			$ 38,783	0	6,286
Number of partnership units issued (in units)	240,586	300,604		89,322	131,790	242,007
Number of partnership units outstanding (in units)							1,060,709
Realty Income, L.P. units \| VEREIT
Change in the carrying value of all noncontrolling interests
Additions to noncontrolling interest			$ 1,800
Number of partnership units issued (in units)			56,400
Other Noncontrolling Interests
Change in the carrying value of all noncontrolling interests
Additions to noncontrolling interest							$ 0	0	5,084
Noncontrolling interests
Change in the carrying value of all noncontrolling interests
Carrying value at beginning of the period							32,247	29,702
Contributions							43,390
Issued in merger							3,160
Orion divestiture							(1,352)
Reallocation of equity							(42)	(47)	653
Additions to noncontrolling interest							43,390	3,168	11,370
Distributions							(1,868)	(1,596)
Allocation of net income							1,291	1,020
Carrying value at end of the period							76,826	32,247	29,702
Noncontrolling interests \| Realty Income, L.P. units
Change in the carrying value of all noncontrolling interests
Carrying value at beginning of the period							24,100	24,596
Contributions							36,975
Issued in merger							3,160
Orion divestiture							(1,352)
Reallocation of equity							(42)	(47)
Additions to noncontrolling interest								0
Distributions							(1,574)	(1,297)
Allocation of net income							1,149	848
Carrying value at end of the period							62,416	24,100	24,596
Noncontrolling interests \| Other Noncontrolling Interests
Change in the carrying value of all noncontrolling interests
Carrying value at beginning of the period							8,147	5,106
Contributions							6,415
Issued in merger							0
Orion divestiture							0
Reallocation of equity							0	0
Additions to noncontrolling interest								3,168
Distributions							(294)	(299)
Allocation of net income							142	172
Carrying value at end of the period							$ 14,410	$ 8,147	$ 5,106