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Equity-Based Compensation (Details) - USD ($) $ in Millions	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Time-Based Restricted Stock Units and Restricted Stock Units \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
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Time-Based Restricted Stock Units and Restricted Stock Units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
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Time-Based Restricted Stock Units and Restricted Stock Units \| Non-employee Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
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Performance-Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)			3 years
Metric-Based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity-based compensation expense	$ 0.0		$ 0.0
Time-Based Restricted Stock Units and Performance-Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
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Unrecognized compensation expense	4.8		$ 4.8
Weighted-average remaining term (in years)			1 year 9 months 18 days
Realty Income Time-Based Restricted Stock Units and Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
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