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Commitments. Contingencies and Uncertainties (Narrative) (Details) $ in Thousands | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Jan. 31, 2022 USD ($) | Jun. 30, 2022 USD ($) property tenant leaseAgreement operator jointVenture | Mar. 31, 2022 USD ($) property | Jun. 30, 2021 USD ($) | Jun. 30, 2022 USD ($) property tenant leaseAgreement operator jointVenture | Jun. 30, 2021 USD ($) | May 31, 2022 property | Apr. 01, 2022 jointVenture property | Dec. 31, 2021 USD ($)
Commitment and Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Loans and leases agreement |  |  |  |  | $ 144,900 |  |  |  |
Mortgage and other notes receivable, net |  | $ 204,277 |  |  | 204,277 |  |  |  | $ 299,952
Development commitments for construction and renovation |  | 34,000 |  |  | 34,000 |  |  |  |
Amount funded toward the development commitments |  | 24,000 |  |  | 24,000 |  |  |  |
Amount funded on real estate investments |  | 1,000 |  |  | 1,000 |  |  |  |
Contingent lease inducement commitments and contingent consideration of acquisitions |  | 28,600 |  |  | 28,600 |  |  |  |
Lease deposit liabilities |  | 0 |  |  | $ 0 |  |  |  | $ 8,838
Amount transferred to an escrow account |  | $ 6,900 |  |  |  |  |  |  |
Number of joint ventures | jointVenture |  | 2 |  |  | 2 |  |  |  |
Loss on operations transfer, net |  | $ (729) |  | $ 0 | $ (729) | $ 0 |  |  |
Aggregate lease concessions granted to tenants |  |  |  |  |  |  |  |  |
Commitment and Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Operating lease income |  |  |  |  | $ 44,000 |  |  |  |
Lease Payment Deferral |  |  |  |  |  |  |  |  |
Commitment and Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Number of operators/tenants | tenant |  | 3 |  |  | 3 |  |  |  |
Operating lease income |  | $ 2,900 |  |  | $ 38,000 |  |  |  |
Encore Senior Living |  |  |  |  |  |  |  |  |
Commitment and Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Loans and leases agreement | $ 28,500 |  |  |  |  |  |  |  |
Mortgage and other notes receivable, net |  | 5,200 |  |  | 5,200 |  |  |  |
Discovery PropCo |  |  |  |  |  |  |  |  |
Commitment and Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Development commitments for construction and renovation |  | 2,000 |  |  | 2,000 |  |  |  |
Bickford Senior Living |  |  |  |  |  |  |  |  |
Commitment and Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Loans and leases agreement |  |  |  |  | 4,000 |  |  |  |
Mortgage and other notes receivable, net |  | $ 44,850 |  |  | $ 44,850 |  |  |  |
Properties | property |  | 37 |  |  | 37 |  | 3 |  |
Bickford Senior Living | Facilities Transitioned To Other Operators |  |  |  |  |  |  |  |  |
Commitment and Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Properties | property |  |  | 1 |  |  |  |  |  |
Bickford Senior Living | Lease Payment Deferral |  |  |  |  |  |  |  |  |
Commitment and Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Operating lease income |  |  | $ 1,500 |  | $ 26,000 |  |  |  |
Holiday Transition |  |  |  |  |  |  |  |  |
Commitment and Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Mortgage and other notes receivable, net |  | $ 0 |  |  | $ 0 |  |  |  |
Properties | property |  | 17 |  |  | 17 |  |  |  |
Lease deposit liabilities |  |  | $ 8,800 |  |  |  |  |  |
Number of joint ventures | jointVenture |  |  |  |  |  |  |  | 2 |
Holiday Transition | Facilities Transitioned To Other Operators |  |  |  |  |  |  |  |  |
Commitment and Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Properties | property |  |  |  |  |  |  |  | 1 |
Holiday Transition | Facilities Transitioned to SHOP Partnership Ventures |  |  |  |  |  |  |  |  |
Commitment and Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Properties | property |  |  |  |  |  |  |  | 15 |
Loans Receivable |  |  |  |  |  |  |  |  |
Commitment and Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Number of operators/tenants | operator |  | 5 |  |  | 5 |  |  |  |
Notes Receivable Remain Unfunded |  |  |  |  |  |  |  |  |
Commitment and Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Mortgage and other notes receivable, net |  | $ 75,700 |  |  | $ 75,700 |  |  |  |
Development Commitment |  |  |  |  |  |  |  |  |
Commitment and Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Number of operators/tenants | property |  | 11 |  |  | 11 |  |  |  |
Lease Inducement |  |  |  |  |  |  |  |  |
Commitment and Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Amount funded on real estate investments |  | $ 1,500 |  |  | $ 1,500 |  |  |  |
Properties | leaseAgreement |  | 7 |  |  | 7 |  |  |  |
Collection of Rent Deferred | Lease Payment Deferral |  |  |  |  |  |  |  |  |
Commitment and Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Operating lease income |  |  |  |  | $ 300 |  |  |  |
Rent Deferred Second Quarter of 2022 | Lease Payment Deferral |  |  |  |  |  |  |  |  |
Commitment and Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Number of operators/tenants | tenant |  | 7 |  |  | 7 |  |  |  |
Operating lease income |  |  |  |  | $ 9,200 |  |  |  |
First Quarter Collection of Rent Deferred | Lease Payment Deferral |  |  |  |  |  |  |  |  |
Commitment and Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Operating lease income |  | $ 100 |  |  | $ 200 |  |  |  |
Rent Deferred Second Quarter of 2021 | Lease Payment Deferral |  |  |  |  |  |  |  |  |
Commitment and Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Operating lease income |  |  |  | 9,900 |  | 14,100 |  |  |
Rent Deferred Second Quarter of 2021 | Bickford Senior Living | Lease Payment Deferral |  |  |  |  |  |  |  |  |
Commitment and Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Operating lease income |  |  |  | $ 6,500 |  | $ 10,300 |  |  |
Asset Held For Sale | Bickford Senior Living |  |  |  |  |  |  |  |  |
Commitment and Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Properties | property |  | 1 |  |  | 1 |  |  |  |
Asset Held For Sale | Holiday Transition |  |  |  |  |  |  |  |  |
Commitment and Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Properties | property |  |  |  |  |  |  |  | 1 |

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