COMMITMENTS AND CONTINGENCIES (Details) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2019	Mar. 31, 2019	Mar. 31, 2017
Brazil
Commitments and contingencies
Accrual for Environmental Loss Contingencies	$ 400,000			$ 1,500,000
Payments to settle environmental loss contingency	100,000	$ 600,000
Brazil | Reduction of gross receipts tax
Commitments and contingencies
Recovery of part of claim	700,000		$ 2,700,000
Brazil | Reduction of gross receipts tax | Cost of Sales
Commitments and contingencies
Recovery of part of claim	700,000		1,700,000
Brazil | Reduction of gross receipts tax | Interest Income
Commitments and contingencies
Recovery of part of claim			$ 1,000,000.0
Brazil | Minimum | Reduction of gross receipts tax
Commitments and contingencies
Estimated potential gain contingency, recoveries	1,500,000
Brazil | Maximum | Reduction of gross receipts tax
Commitments and contingencies
Estimated potential gain contingency, recoveries	7,500,000
Indemnification agreements
Commitments and contingencies
Liabilities recorded under indemnification agreements	0	0
Tax Assessment | Brazil
Commitments and contingencies
Estimated loss contingency		6,100,000
Loss contingency liability recorded	0
Tax Assessment, Interest | Brazil
Commitments and contingencies
Estimated loss contingency		2,300,000
Tax Assessment, Penalites | Brazil
Commitments and contingencies
Estimated loss contingency		$ 800,000
Fire damage | France
Commitments and contingencies
Estimated potential gain contingency, recoveries	0
Insurance receivable	$ 0