Realty Income Office Assets, Financial Instruments and Fair Value Measurements (Details) - Realty Income Office Assets - Mortgages - USD ($) $ in Thousands |
Sep. 30, 2021 |
Dec. 31, 2020 |
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| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||
| Unamortized premium | $ 31 | $ 576 |
| Carrying Value | ||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||
| Mortgages payable assumed in connection with acquisitions | 9,625 | 36,476 |
| Estimated Fair Value | ||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||
| Mortgages payable assumed in connection with acquisitions | $ 9,695 | $ 37,095 |
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- Definition Amount, after accumulated amortization, of debt premium. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Fair value portion of contractual obligation to pay money on demand or on fixed or determinable dates. No definition available.
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