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Restructuring and Impairment Activities (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Dec. 31, 2016
Restructuring Cost and Reserve [Line Items]      
Restructuring and impairment expense $ 1.1 $ 1.8  
Restructuring Reserve [Roll Forward]      
Balance at beginning of year 4.3 7.7 $ 7.7
Accruals for announced programs 1.1   4.3
Cash payments (1.5)   (8.4)
Exchange rate impacts 0.1   0.7
Balance at end of period 4.0   $ 4.3
Corporate, Non-Segment [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring and impairment expense 0.2 0.3  
Engineered Papers [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring and impairment expense 0.5 0.9  
Engineered Papers [Member] | Asset impairment [Member] | Poland Manufacturing [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring and impairment expense   0.5  
Engineered Papers [Member] | U.S. and France [Member] | Employee severance [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring and impairment expense 0.5    
Engineered Papers [Member] | France, Brazil, And United States [Member] | Employee severance [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring and impairment expense   0.4  
Advanced Materials & Structures [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring and impairment expense $ 0.4 $ 0.6