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Restructuring and Impairment Expense (Impairments of Assets Held for Use) (Details) - Flowback - Surface Integrated Services - Surface Technologies
$ in Millions
3 Months Ended
Mar. 31, 2016
USD ($)
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