Quarterly report pursuant to Section 13 or 15(d)

SUBSEQUENT EVENTS (Details)

v3.19.3
SUBSEQUENT EVENTS (Details) - AMAK
ر.س in Millions, $ in Millions
1 Months Ended
Oct. 02, 2019
USD ($)
Oct. 02, 2019
SAR (ر.س)
Sep. 30, 2019
USD ($)
Nov. 08, 2019
USD ($)
Dec. 31, 2018
Sep. 30, 2018
Subsequent Event [Line Items]            
Percentage of ownership     33.29%   33.40% 33.41%
Proceeds from sale of equity method investments, non refundable deposit     $ 2.2      
Subsequent Event            
Subsequent Event [Line Items]            
Percentage of ownership 33.30% 33.30%        
Aggregated gross purchase price $ 70.0 ر.س 264.7        
Proceeds from sale of equity method investments, non refundable deposit (in percentage) 5.00% 5.00%        
Proceeds from sale of equity method investments, non refundable deposit $ 3.5     $ 1.3