Segment Reporting - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Segment Reporting [Abstract]
Asset optimization revenue	$ 39.2	$ 20.8	$ 101.1	$ 63.1
Asset optimization cost of revenues	$ 39.4	$ 21.5	$ 101.5	$ 63.3