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Acquisitions - WEST (Details) - Subsequent Event [Member] - Water & Energy Systems Technology [Member]
$ in Millions
Oct. 11, 2016
USD ($)
Business Acquisition [Line Items]  
Percentage of Voting Interests Acquired 100.00%
Name of Acquired Entity Water & Energy Systems Technology of Nevada, Inc.
Total Consideration $ 6.5
Payments to Acquire Business 5.9
Payment Due in April 2018 $ 0.6