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Commitments and Contingencies (Details)
$ in Millions
 1 Months Ended 12 Months Ended
Oct. 31, 2015
USD ($)
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Dec. 31, 2013
USD ($)
Dec. 31, 2000
assessment
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]          
2016   $ 4.5      
2017   3.6      
2018   2.7      
2019   2.7      
2020   2.7      
Thereafter   13.2      
Total   29.4      
Rent expense   6.8 $ 6.1 $ 5.3  
Loss Contingencies [Line Items]          
Capital expenditures for environmental matters   2.6      
Capital expenditures for environmental matters, next fiscal year (less than)   2.0      
Capital expenditures for environmental matters, due in two years (less than)   2.0      
Unfavorable Regulatory Action [Member] | Raw Materials Assessment [Member]          
Loss Contingencies [Line Items]          
Number of assessments from the tax authorities regarding ICMS taxes | assessment         2
Amount of denied assessment appealed $ 16.0        
Number of tax assessments related to periods that predated acquisition and are covered by indemnification | assessment         1
Potential loss due to assessment $ 11.0        
Unfavorable Regulatory Action [Member] | Electricity Assessment [Member]          
Loss Contingencies [Line Items]          
Number of assessments from the tax authorities regarding ICMS taxes | assessment         3
Unfavorable Regulatory Action [Member] | Electricity Assessment One [Member]          
Loss Contingencies [Line Items]          
Potential loss due to assessment   4.0      
Unfavorable Regulatory Action [Member] | Electricity Assessment Two [Member]          
Loss Contingencies [Line Items]          
Potential loss due to assessment   6.0      
Unfavorable Regulatory Action [Member] | Electricity Assessment Three [Member]          
Loss Contingencies [Line Items]          
Potential loss due to assessment   3.0      
LTRI and PdM Subsidiaries [Member] | Energy Cogeneration Steam Supply Agreement [Member]          
Loss Contingencies [Line Items]          
Minimum annual commitments   3.0      
SWM-B Brazilian Mill [Member] | Transmission and Distribution of Energy Agreement [Member]          
Loss Contingencies [Line Items]          
Purchase of electrical energy, estimated annual cost   4.0      
French Mills [Member] | Transmission and Distribution of Energy Agreement [Member]          
Loss Contingencies [Line Items]          
Estimated due within one year   10.0      
Calcium Carbonate [Member] | PdM Subsidiary [Member]          
Loss Contingencies [Line Items]          
Purchase commitment, remaining amount committed   2.0      
Calcium Carbonate, Through 2024 [Member] | PdM Subsidiary [Member]          
Loss Contingencies [Line Items]          
Purchase commitment, remaining amount committed   $ 13.0