XML 112 R97.htm IDEA: XBRL DOCUMENT v3.8.0.1
Commitments and Contingencies (Details)
 12 Months Ended
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Dec. 31, 2017
EUR (€)
Oct. 31, 2015
USD ($)
Dec. 31, 2000
assessment
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]            
2017 $ 6,200,000          
2018 5,200,000          
2019 4,800,000          
2020 4,200,000          
2021 3,700,000          
Thereafter 9,700,000          
Total 33,800,000          
Rent expense 6,400,000 $ 6,900,000 $ 6,800,000      
Loss Contingencies [Line Items]            
Capital expenditures for environmental matters 1,100,000          
Capital expenditures for environmental matters, due in two years (less than) 1,000,000          
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 2,000,000          
SWM-B Brazilian Mill [Member] | Transmission and Distribution of Energy Agreement [Member]            
Loss Contingencies [Line Items]            
Purchase of electrical energy, estimated annual cost 3,000,000          
French Mills [Member] | Transmission and Distribution of Energy Agreement [Member]            
Loss Contingencies [Line Items]            
Estimated due within one year 3,000,000          
Calcium Carbonate [Member] | PdM Subsidiary [Member]            
Loss Contingencies [Line Items]            
Purchase commitment, remaining amount committed 2,000,000          
Calcium Carbonate, Through 2024 [Member] | PdM Subsidiary [Member]            
Loss Contingencies [Line Items]            
Purchase commitment, remaining amount committed 11,000,000          
Maximum [Member] | Unfavorable Regulatory Action [Member] | Raw Materials Assessment [Member]            
Loss Contingencies [Line Items]            
Loss Contingency, Estimate of Possible Loss         $ 16,000,000  
Maximum [Member] | Unfavorable Regulatory Action [Member] | Raw Materials Assessment 2 [Member] [Member]            
Loss Contingencies [Line Items]            
Loss Contingency, Estimate of Possible Loss 12,700,000          
Maximum [Member] | Unfavorable Regulatory Action [Member] | Electricity Assessment One [Member]            
Loss Contingencies [Line Items]            
Loss Contingency, Estimate of Possible Loss 5,500,000          
Maximum [Member] | Unfavorable Regulatory Action [Member] | Electricity Assessment Two [Member]            
Loss Contingencies [Line Items]            
Loss Contingency, Estimate of Possible Loss 9,100,000          
Maximum [Member] | Unfavorable Regulatory Action [Member] | Electricity Assessment Three [Member]            
Loss Contingencies [Line Items]            
Loss Contingency, Estimate of Possible Loss $ 4,400,000          
Maximum [Member] | Unfavorable Regulatory Action [Member] | Malaucene Co-Employment [Member]            
Loss Contingencies [Line Items]            
Loss Contingency, Estimate of Possible Loss | €       € 1,300,000.0    
Loss Contingency, Pending Claims, Number 18          
Biomass Consumption [Member] | French Mills [Member]            
Loss Contingencies [Line Items]            
Minimum annual commitments $ 2,000,000