Restructuring and Impairment Expense (Impairments of Assets Held for Use) (Details) - Flowback - Surface Integrated Services - Surface Technologies - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2016	Mar. 31, 2016
Property, Plant and Equipment [Line Items]
Impairment of Long-Lived Assets Held-for-use	$ 12.4
Assets, Fair Value Disclosure, Nonrecurring		$ 44.7
Customer Relationships
Property, Plant and Equipment [Line Items]
Impairment of Intangible Assets, Finite-lived	$ 3.4