Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation and Accounting Policies Impairments of Long-Lived Assets (Details)

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Basis of Presentation and Accounting Policies Impairments of Long-Lived Assets (Details)
$ in Millions
6 Months Ended
Jun. 30, 2017
USD ($)
Property, Plant and Equipment [Abstract]  
Asset Impairment Charges $ (5.7)