Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended				9 Months Ended
	Sep. 30, 2016		Sep. 30, 2015	[1]	Sep. 30, 2016	Sep. 30, 2015	[1]
Operating Loss Carryforwards [Line Items]
Income tax expense	$ 0.0		$ (0.3)		$ 0.0	$ 0.0
Maximum
Operating Loss Carryforwards [Line Items]
Income tax expense	$ 0.1	[1]			$ 0.1

[1] (1) The 2015 financial information has been retrospectively adjusted for the acquisition of the Shell Auger and Lockport Operations.