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Commitments, Contingencies and Uncertainties (Narratives) (Details) $ in Thousands |  |  | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Apr. 01, 2022 USD ($) property jointVenture | Mar. 04, 2022 USD ($) | Dec. 31, 2023 USD ($) jointVenture facility | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Jun. 30, 2022 property | Mar. 31, 2022 USD ($) | Sep. 30, 2021 property | Jun. 30, 2021 facility property
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Total |  |  | $ 14,515 |  |  |  |  |  |
Contingent funding commitment, amount funded |  |  | 2,700 |  |  |  |  |  |
Proceeds from sales of real estate |  |  | $ 57,031 | $ 168,958 | $ 238,864 |  |  |  |
Litigation settlement, amount awarded from other party | $ 6,900 | $ 6,900 |  |  |  |  |  |  |
Number of joint ventures | jointVenture |  |  | 2 |  |  |  |  |  |
Loss on operations transfer, net |  |  | $ (20) | $ 710 | 0 |  |  |  |
Discovery PropCo |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Contingent funding commitment, amount funded |  |  | 1,000 |  |  |  |  |  |
Discovery PropCo | Capital Addition Purchase Commitments |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Total |  |  | $ 2,000 |  |  |  |  |  |
Bickford |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Properties | facility |  |  | 39 |  |  |  |  |  |
Bickford | Assessed not probable to occur |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Asset disposition, contingent consideration, note receivable |  |  |  |  | $ 4,500 |  |  |  |
Bickford | Assessed not probable to occur | Notes Receivable |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Note receivable interest rate |  |  |  |  |  |  |  | 10.00% |
Loan term |  |  | 5 years |  |  |  |  |  |
Bickford | Negotiations to sale |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Properties | property |  |  |  |  |  |  |  | 6 | 6
Bickford | Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Proceeds from sales of real estate |  |  | $ 52,100 |  |  |  |  |  |
Proceeds from sale of real estate |  |  | 52,900 |  |  |  |  |  |
Repayments of secured debt |  |  | $ 800 |  |  |  |  |  |
Note receivable interest rate |  |  | 10.00% |  |  |  |  |  |
Holiday Acquisition Holdings |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Properties | facility |  |  |  |  |  |  |  |  | 17
Lease deposit liabilities |  |  |  |  |  |  | $ 8,800 |  |
Number of joint ventures | jointVenture | 2 |  |  |  |  |  |  |  |
Holiday Acquisition Holdings | Facilities Transitioned To Other Operators |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Properties | property | 1 |  |  |  |  | 1 |  |  |
Holiday Acquisition Holdings | Facilities Transitioned to SHOP Partnership Ventures |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Properties | property | 15 |  |  |  |  |  |  |  |
Holiday Acquisition Holdings | Asset Held For Sale In 2022 |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Properties | property | 1 |  |  |  |  |  |  |  |

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