Commitments and Contingencies (Details) - Unfavorable Regulatory Action	3 Months Ended
	Mar. 31, 2020 USD ($)	Aug. 31, 2018 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	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]
Settlement period	60 months
Electricity Assessment
Loss Contingencies [Line Items]
Number of assessments from the tax authorities regarding ICMS taxes | assessment					4
Raw Materials Assessment And Remaining Electricity Assessments
Loss Contingencies [Line Items]
Liability recorded	$ 0
Maximum | Raw Materials Assessment 2
Loss Contingencies [Line Items]
Loss contingency, estimated possible loss	$ 9,400,000
Maximum | Electricity Assessment One
Loss Contingencies [Line Items]
Loss contingency, estimated possible loss			$ 3,500,000
Maximum | Second Electricity Assessment
Loss Contingencies [Line Items]
Loss contingency, estimated possible loss			$ 6,800,000
Maximum | Electricity Assessment Three
Loss Contingencies [Line Items]
Loss contingency, estimated possible loss				$ 500,000
Maximum | Electricity Assessment Four
Loss Contingencies [Line Items]
Loss contingency, estimated possible loss		$ 7,600,000