Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Property, Plant and Equipment Estimated Useful Lives (Details)

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Summary of Significant Accounting Policies - Property, Plant and Equipment Estimated Useful Lives (Details)
12 Months Ended
Dec. 31, 2019
Minimum | Water wells and other water-related assets  
Property, Plant and Equipment [Line Items]  
Property, plant and equipment, estimated useful life 3 years
Minimum | Furniture, fixtures and equipment  
Property, Plant and Equipment [Line Items]  
Property, plant and equipment, estimated useful life 5 years
Maximum | Water wells and other water-related assets  
Property, Plant and Equipment [Line Items]  
Property, plant and equipment, estimated useful life 30 years
Maximum | Furniture, fixtures and equipment  
Property, Plant and Equipment [Line Items]  
Property, plant and equipment, estimated useful life 7 years