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General - Additional Information (Detail) - Property
Nov. 08, 2021
Sep. 30, 2021
Subsequent Event | Grayson Properties    
Organization Consolidation And Presentation Of Financial Statements [Line Items]    
Minority ownership interest held by a third-party 5.00%  
4 Unconsolidated Limited Liability Companies / Limited Partner | Minimum    
Organization Consolidation And Presentation Of Financial Statements [Line Items]    
Non-controlling equity interest, ownership percentage   33.00%
4 Unconsolidated Limited Liability Companies / Limited Partner | Maximum    
Organization Consolidation And Presentation Of Financial Statements [Line Items]    
Non-controlling equity interest, ownership percentage   95.00%
Limited Liability Companies    
Organization Consolidation And Presentation Of Financial Statements [Line Items]    
Number of real estate investments   5