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General - Schedule of Real Estate Investments and Nonutility Properties (Details) - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
Schedule of Investments [Line Items]    
Land $ 918 $ 12,615
Buildings and improvements 470 45,418
Subtotal 1,388 58,033
Less accumulated depreciation and amortization 191 17,158
Net real estate investments and nonutility properties 1,197 $ 40,875
Warehouse Building    
Schedule of Investments [Line Items]    
Land 13,170  
Buildings and improvements 44,950  
Subtotal 58,120  
Less accumulated depreciation and amortization 17,270  
Net real estate investments and nonutility properties $ 40,850