Quarterly report pursuant to Section 13 or 15(d)

INVESTMENT IN AMAK AND DISCONTINUED OPERATIONS - Additional Information (Details)

v3.21.2
INVESTMENT IN AMAK AND DISCONTINUED OPERATIONS - Additional Information (Details)
ر.س in Millions, $ in Millions
3 Months Ended 9 Months Ended
Mar. 26, 2020
SAR (ر.س)
Mar. 26, 2020
USD ($)
shares
Sep. 22, 2019
SAR (ر.س)
Sep. 22, 2019
USD ($)
Sep. 30, 2020
SAR (ر.س)
shares
Sep. 30, 2020
USD ($)
shares
Sep. 30, 2021
USD ($)
ر.س / $
Aug. 31, 2021
USD ($)
Mar. 31, 2021
USD ($)
Sep. 28, 2020
Schedule of Equity Method Investments [Line Items]                    
Percentage of non-refundable deposit forfeited prior to long stop date         50.00% 50.00%        
Equity method investment, shares sold (in shares) | shares         22,467,422 22,467,422        
Proceeds from sales deposit of equity method investments   $ 0.5                
Income taxes payable                 $ 1.1  
Deposits forfeited           $ 1.5        
Purchase price held by purchaser for tax obligations             $ 2.1      
Saudi Industrial Development Fund Limited Guarantee                    
Schedule of Equity Method Investments [Line Items]                    
Loan guarantee             41.00%      
AMAK foreign taxes and transaction costs                    
Schedule of Equity Method Investments [Line Items]                    
Income taxes payable   0.3                
AMAK                    
Schedule of Equity Method Investments [Line Items]                    
Proceeds from sale of investment ر.س 40 $ 10.7 ر.س 265 $ 70.0 ر.س 224 $ 59.9        
Non-refundable deposit of amount sold, percentage             5.00%      
Non-refundable deposit of amount sold             $ 3.5      
Percentage of non-refundable deposit forfeited prior to long stop date                   50.00%
Equity method investment, shares sold (in shares) | shares   4,000,000                
Prepaid expense               $ 0.8    
Foreign currency exchange rate | ر.س / $             3.75      
AMAK | AMAK foreign taxes and transaction costs                    
Schedule of Equity Method Investments [Line Items]                    
Foreign income tax expense             $ 1.3