Texas Water Alliance Limited (Details) - USD ($) $ in Thousands	Feb. 22, 2016	Jun. 30, 2017	Dec. 31, 2016
Equity Method Investments and Joint Ventures [Abstract]
Proceeds from Sales of Business, Affiliate and Productive Assets	$ 31,000
Purchase and Sales Agreement, Holdback Amount	3,000
Non-refundable deposit	$ 3,000	$ 3,000	$ 0

Aggregate cash proceeds received from a combination of transactions in which noncurrent assets are sold, which may include the sale of a business, an investment in an affiliate (including an equity method investee), property, plant and equipment and intangible assets. Excludes sales of trading, available-for-sale, and held-to-maturity securities.

No definition available.

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