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General - Schedule of Nonutility Properties and Real Estate Investments (Details) - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Schedule of Investments [Line Items]    
Land $ 4,137 $ 12,615
Wholesale water supply assets 8,465 0
Buildings and improvements 470 45,418
Subtotal 13,072 58,033
Less accumulated depreciation and amortization 192 17,158
Net nonutility properties and real estate investments 12,880 $ 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 nonutility properties and real estate investments $ 40,850