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Represents the reallocation of equity between limited and general partner.

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Number of partnership units issued.

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No definition available.

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Number of partnership units outstanding.

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The cash outflow or inflow increase (decrease) in distribution due to real estate partnership based upon payments and accruals.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).

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Decrease in noncontrolling interest (for example, but not limited to, redeeming or purchasing the interests of noncontrolling shareholders, issuance of shares (interests) by the non-wholly owned subsidiary to the parent entity for other than cash, and a buyback of shares (interest) by the non-wholly owned subsidiary from the noncontrolling interests).

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

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Amount of increase in noncontrolling interest from subsidiary issuance of equity interests to noncontrolling interest holders.

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Noncontrolling Interests - Change in Carrying Value (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Mar. 28, 2019	Dec. 31, 2018	Apr. 30, 2018	Mar. 30, 2018	Jun. 27, 2013	Jan. 22, 2013
Change in the carrying value of all noncontrolling interests
Carrying value at beginning of the period			$ 32,236
Reallocation of equity	$ 0		0	$ 0
Redemptions	(898)	$ 0	(21,123)	0
Shares issued in conjunction with acquisition			6,286	18,848
Allocation of net income	226	$ 284	740	$ 753
Carrying value at end of the period	$ 24,678		$ 24,678
Tau Operating Partnership
Change in the carrying value of all noncontrolling interests
Number of partnership units issued (in units)										317,022
Number of partnership units outstanding (in units)	0		0			317,022
Realty Income, L.P.
Change in the carrying value of all noncontrolling interests
Number of partnership units issued (in units)	89,322	373,797	89,322	373,797	89,322		131,790	242,007	534,546
Number of partnership units outstanding (in units)	463,119		463,119			373,797
Noncontrolling interests
Change in the carrying value of all noncontrolling interests
Carrying value at beginning of the period			$ 32,236
Reallocation of equity	$ 653		653	$ 492
Redemptions	(901)	$ (1,361)	(14,257)	(2,829)
Shares issued in conjunction with acquisition			6,286	$ 18,848
Distributions			(980)
Allocation of net income			740
Carrying value at end of the period	24,678		24,678
Noncontrolling interests \| Tau Operating Partnership
Change in the carrying value of all noncontrolling interests
Carrying value at beginning of the period			13,356
Reallocation of equity			0
Redemptions			(13,356)
Shares issued in conjunction with acquisition			0
Distributions			0
Allocation of net income			0
Carrying value at end of the period	0		0
Noncontrolling interests \| Realty Income, L.P.
Change in the carrying value of all noncontrolling interests
Carrying value at beginning of the period			17,912
Reallocation of equity			653
Redemptions			0
Shares issued in conjunction with acquisition			6,286
Distributions			(904)
Allocation of net income			731
Carrying value at end of the period	24,678		24,678
Noncontrolling interests \| Other Noncontrolling Interests
Change in the carrying value of all noncontrolling interests
Carrying value at beginning of the period			968
Reallocation of equity			0
Redemptions			(901)
Shares issued in conjunction with acquisition			0
Distributions			(76)
Allocation of net income			9
Carrying value at end of the period	$ 0		$ 0