Quarterly report pursuant to Section 13 or 15(d)

COMMITMENTS AND CONTINGENCIES (Details)

v3.19.1
COMMITMENTS AND CONTINGENCIES (Details)
$ in Thousands, ر.س in Millions
3 Months Ended
Mar. 31, 2019
USD ($)
Mar. 31, 2018
USD ($)
Dec. 31, 2019
USD ($)
Mar. 31, 2019
SAR (ر.س)
Oct. 24, 2010
USD ($)
Oct. 24, 2010
SAR (ر.س)
Guarantor Obligations [Line Items]            
Shortfall fee expenses $ 100 $ 100        
Expenses for environmental monitoring, compliance, and improvements 198 $ 149,000        
Saudi Industrial Development Fund Limited Guarantee            
Guarantor Obligations [Line Items]            
Loan guarantee         41.00% 41.00%
Principal amount of loan guaranteed         $ 88,000 ر.س 330.0
Amount of maximum exposure $ 81,300     ر.س 305.0 $ 36,100 ر.س 135.3
Scenario, Forecast | Saudi Industrial Development Fund Limited Guarantee            
Guarantor Obligations [Line Items]            
Amount of maximum exposure     $ 8,000