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Mortgage and Other Notes Receivable (Schedule of New Investments) (Details) $ in Thousands | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jun. 30, 2019 USD ($) | Dec. 31, 2022 USD ($) property facility | May 31, 2022 property
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Properties | property |  | 160 |
Development loan |  | $ 159,625 |
Senior Living Communities |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Properties | property |  | 10 |
Bickford Senior Living |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Properties |  | 36 | 3
Development loan |  | $ 28,900 |
Prior Period Investment | Senior Living Communities |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Development loan | $ 32,700 |  |

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