Noncontrolling Interests - Narrative (Details) $ in Thousands	1 Months Ended	3 Months Ended		7 Months Ended
	Mar. 31, 2026 USD ($) property entity shares	Mar. 31, 2026 USD ($) entity shares	Mar. 31, 2025 USD ($)	Mar. 31, 2026 USD ($) entity shares	Dec. 31, 2025 USD ($)
Noncontrolling interests
Number of noncontrolling interests consolidated | entity	14	14		14
Contributions from noncontrolling owners		$ 1,570,160	$ 0
Noncontrolling interests	$ 2,088,184	$ 2,088,184		$ 2,088,184	$ 685,273
Apollo JV | Apollo
Noncontrolling interests
Third-party partnership ownership interest (as a percent)	49.00%	49.00%		49.00%
Apollo JV | Common Class B | Apollo
Noncontrolling interests
Investment shares | shares	49,000,000	49,000,000		49,000,000
Realty Income, L.P.
Noncontrolling interests
Ownership interest (as a percent)	90.05%	90.05%		90.05%
Third-party partnership ownership interest (as a percent)	9.95%	9.95%		9.95%
Primary Beneficiary
Noncontrolling interests
Noncontrolling interests	$ 2,088,184	$ 2,088,184		$ 2,088,184	685,273
Primary Beneficiary | U.S. Core Plus Fund
Noncontrolling interests
Investment company, committed capital		167,500		$ 1,700,000
Capital calls		$ 638,000
Ownership interest (as a percent)	38.50%	38.50%		38.50%
Noncontrolling interests	$ 1,098,930	$ 1,098,930		$ 1,098,930	477,081
Primary Beneficiary | Apollo JV
Noncontrolling interests
Ownership interest (as a percent)	51.00%	51.00%		51.00%
Number of net lease properties contributed | property	492
Contributions from noncontrolling owners	$ 1,000,000	$ 1,000,000
Noncontrolling interests	778,300	778,300		$ 778,300
Increase in additional paid in capital		$ 221,700
Reduction in APIC related to noncontrolling interest issuance costs	$ (20,600)
Primary Beneficiary | Apollo JV | Common Class A
Noncontrolling interests
Investment shares | shares	51,000,000	51,000,000		51,000,000
Primary Beneficiary | Apollo JV | Common Class B
Noncontrolling interests
Quarterly distribution, percentage of available cash flow	55.00%
Primary Beneficiary | Apollo JV | Common Class B | Minimum
Noncontrolling interests
Quarterly distribution, percentage of available cash flow	49.00%
Primary Beneficiary | Apollo JV | Common Class B | Maximum
Noncontrolling interests
Quarterly distribution, percentage of available cash flow	60.00%
Primary Beneficiary | Realty Income, L.P.
Noncontrolling interests
Noncontrolling interests	$ 164,838	$ 164,838		$ 164,838	$ 165,663