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Commitments and Contingencies	12 Months Ended
Commitments and Contingencies	Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies We are involved in various legal and regulatory proceedings ("Proceedings") arising in the ordinary course of business. The Proceedings include, but are not limited to, legal claims made by employees, vendors and customers, and notices, consent decrees, information requests, additional permit requirements and other similar enforcement actions by governmental agencies relating to our utility infrastructure, including water and wastewater treatment plants and other waste treatment facilities and electrical systems. Additionally, in the ordinary course of business, our operations are subject to audit by various taxing authorities. Management believes these Proceedings taken together do not represent a material liability. In addition, to the extent any such proceedings or audits relate to newly acquired Properties, we consider any potential indemnification obligations of sellers in our favor.