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Investments in Real Estate Properties - Additional information (Details)
3 Months Ended 6 Months Ended 12 Months Ended
Jul. 03, 2023
USD ($)
Jun. 30, 2024
USD ($)
property
Jun. 30, 2023
USD ($)
Jun. 30, 2024
USD ($)
property
Jun. 30, 2023
USD ($)
Dec. 31, 2023
property
USD ($)
Jul. 31, 2023
Dec. 31, 2021
USD ($)
property
Investments in Real Estate Properties                
Number of real estate properties   10   10   10    
Number of real estate properties leased to related facilities excluding derecognized properties   8   8   8    
Percentage of leased to the tenants of the related facilities       100.00%   100.00%    
Number of real estate properties leased to affiliated subsidiary | $   2   2   2    
Percentage of leased to affiliated subsidiary       100.00%   100.00%    
Number of properties derecognized       8   8    
Depreciation | $   $ 500,000 $ 1,600,000 $ 1,800,000 $ 3,100,000      
Number of properties owned by our unconsolidated equity-method investments   21   21   31    
Impairments | $       $ 0 $ 0      
Summit Healthcare REIT, Inc                
Investments in Real Estate Properties                
Equity method investment, ownership percentage   100.00%   100.00%        
Fantasia JV                
Investments in Real Estate Properties                
Percentage of ownership interest assigned 65.00%              
Consideration for interest assigned | $ $ 0              
Fantasia JV | Summit Healthcare REIT, Inc                
Investments in Real Estate Properties                
Equity method investment, ownership percentage             100.00%  
CA3 Properties | CIBC Bank                
Investments in Real Estate Properties                
Number of real estate properties acquired               3
Principal amount of loan | $               $ 15,000,000.0
Summit Georgia Holdings LLC                
Investments in Real Estate Properties                
Number of properties derecognized       8        
Number of properties owned by our unconsolidated equity-method investments   21   21        
Principal amount of loan | $   $ 12,750,000   $ 12,750,000