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Business Acquisitions (Details)
$ in Millions
3 Months Ended
Mar. 31, 2017
USD ($)
Business Acquisition [Line Items]  
Goodwill $ 4.0
Power  
Business Acquisition [Line Items]  
Tangible assets acquired 3.1
Intangible assets 3.4
Goodwill 4.0
Other liabilities assumed (1.2)
TOTAL CONSIDERATION, NET OF CASH RECEIVED $ 9.3