XML 54 R43.htm IDEA: XBRL DOCUMENT v3.8.0.1
Other Income (Expense), Net (Parenthetical) (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
DeRidder mill incident $ 2.6   $ 0.1  
Acquisition and integration related costs 0.5 $ 2.0 0.8 $ 2.3
Hexacomb working capital adjustment     2.3  
Facilities closure and other costs        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Restructuring charges 0.9 $ 1.6 1.9 $ 5.9
Wallula, Washington Mill        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Restructuring charges $ 22.7   $ 22.7  
High-performance of virgin kraft linerboard machine percentage 100.00%   100.00%