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Commitments and Contingencies (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Oct. 31, 2015
USD ($)
Dec. 31, 2000
assessment
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]          
2017 $ 4.4        
2018 4.0        
2019 3.3        
2020 3.2        
2021 3.2        
Thereafter 12.0        
Total 30.1        
Rent expense 6.9 $ 6.8 $ 6.1    
Loss Contingencies [Line Items]          
Capital expenditures for environmental matters 2.8        
Capital expenditures for environmental matters, due in two years (less than) 1.0        
Unfavorable Regulatory Action [Member] | Raw Materials Assessment [Member]          
Loss Contingencies [Line Items]          
Number of assessments from the tax authorities regarding ICMS taxes | assessment         2
Number of tax assessments related to periods that predated acquisition and are covered by indemnification | assessment         1
Unfavorable Regulatory Action [Member] | Electricity Assessment [Member]          
Loss Contingencies [Line Items]          
Number of assessments from the tax authorities regarding ICMS taxes | assessment         3
LTRI and PdM Subsidiaries [Member] | Energy Cogeneration Steam Supply Agreement [Member]          
Loss Contingencies [Line Items]          
Minimum annual commitments 2.0        
SWM-B Brazilian Mill [Member] | Transmission and Distribution of Energy Agreement [Member]          
Loss Contingencies [Line Items]          
Purchase of electrical energy, estimated annual cost 3.0        
French Mills [Member] | Transmission and Distribution of Energy Agreement [Member]          
Loss Contingencies [Line Items]          
Estimated due within one year 8.0        
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 11.0        
Maximum [Member] | Unfavorable Regulatory Action [Member] | Raw Materials Assessment [Member]          
Loss Contingencies [Line Items]          
Loss Contingency, Estimate of Possible Loss       $ 16.0  
Maximum [Member] | Unfavorable Regulatory Action [Member] | Raw Materials Assessment 2 [Member] [Member]          
Loss Contingencies [Line Items]          
Loss Contingency, Estimate of Possible Loss 13.0        
Maximum [Member] | Unfavorable Regulatory Action [Member] | Electricity Assessment One [Member]          
Loss Contingencies [Line Items]          
Loss Contingency, Estimate of Possible Loss 5.0        
Maximum [Member] | Unfavorable Regulatory Action [Member] | Electricity Assessment Two [Member]          
Loss Contingencies [Line Items]          
Loss Contingency, Estimate of Possible Loss 9.0        
Maximum [Member] | Unfavorable Regulatory Action [Member] | Electricity Assessment Three [Member]          
Loss Contingencies [Line Items]          
Loss Contingency, Estimate of Possible Loss $ 4.0