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Subsequent Events: (Notes)	6 Months Ended
	Jun. 30, 2016
Subsequent Events [Abstract]
Subsequent Events	Subsequent Event: On July 12, 2016, ASUS was awarded a 50-year contract by the U.S. government to operate, maintain, and provide construction management services for the water and wastewater systems at Eglin Air Force Base located in Florida. The contract is subject to annual economic price adjustments. ASUS will assume operations at Eglin Air Force Base following the completion of a 10-month transition period.

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- Definition

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

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