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v3.22.2.2

Noncontrolling Interests - Narrative (Details) | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
May 31, 2021 joint_venture | Dec. 31, 2020 joint_venture | Sep. 30, 2022 noncontrolling_interest joint_venture
Noncontrolling Interest [Abstract] |  |  |
Number of noncontrolling interests consolidated | noncontrolling_interest |  |  | 4
Number of development joint ventures |  |  | 2
Number of development joint ventures acquired | 1 | 1 |

X
- Definition Number Of Development Joint Ventures + References No definition available. + Details
Name: | o_NumberOfDevelopmentJointVentures
Namespace Prefix: | o_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Definition Number Of Development Joint Ventures Acquired + References No definition available. + Details
Name: | o_NumberOfDevelopmentJointVenturesAcquired
Namespace Prefix: | o_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Definition Number Of Noncontrolling Interests Consolidated + References No definition available. + Details
Name: | o_NumberOfNoncontrollingInterestsConsolidated
Namespace Prefix: | o_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_NoncontrollingInterestAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration