Quarterly report pursuant to Section 13 or 15(d)

Divestitures Divestitures (Details)

v3.7.0.1
Divestitures Divestitures (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2017
Jun. 30, 2016
Dec. 31, 2016
Sep. 08, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Disposal Group, Including Discontinued Operation, Consideration $ 0.0      
Other Nonoperating Income $ 0.9      
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Disposal Group, Including Discontinued Operation, Consideration       $ 1.0
Gain Contingency, Unrecorded Amount       $ 2.0
Disposal Group, Not Discontinued Operation, Loss (Gain) on Write-down   $ 20.4    
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal     $ (10.8)  
Transaction and Exit Costs     $ 3.5