XML 68 R58.htm IDEA: XBRL DOCUMENT v3.20.2
Commitments and Contingencies (Details) - Unfavorable Regulatory Action
May 24, 2019
USD ($)
Sep. 30, 2020
USD ($)
Aug. 31, 2018
USD ($)
Dec. 31, 2014
USD ($)
Dec. 31, 2000
assessment
Raw Materials Assessment          
Loss Contingencies [Line Items]          
Number of assessments from the tax authorities regarding ICMS taxes | assessment         2
Raw Materials Assessment 2          
Loss Contingencies [Line Items]          
Loss contingency, estimated possible loss $ 8,700,000        
Settlement period 60 months        
Electricity Assessment          
Loss Contingencies [Line Items]          
Number of assessments from the tax authorities regarding ICMS taxes | assessment         4
Electricity Assessment One          
Loss Contingencies [Line Items]          
Loss contingency, estimated possible loss       $ 3,300,000  
Second Electricity Assessment          
Loss Contingencies [Line Items]          
Loss contingency, estimated possible loss       $ 6,300,000  
Electricity Assessment Three          
Loss Contingencies [Line Items]          
Loss contingency, estimated possible loss     $ 500,000    
Electricity Assessment Four          
Loss Contingencies [Line Items]          
Loss contingency, estimated possible loss     $ 7,100,000    
Raw Materials Assessment And Remaining Electricity Assessments          
Loss Contingencies [Line Items]          
Liability recorded   $ 0