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FINANCIAL RISK MANAGEMENT (Credit risk narrative) (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Disclosure of credit risk exposure [line items]    
Trade receivables $ 1,767,425 $ 918,438
Credit risk    
Disclosure of credit risk exposure [line items]    
Financial assets, investments assessed as investment grade, percent 57.30% 61.10%
Trade receivables $ 1,767,400 $ 918,400
Financing Receivables, Up to 180 Past Due | Credit risk    
Disclosure of credit risk exposure [line items]    
Trade receivables 95,400 36,600
Financing Receivables, Equal to Greater than 1 Day Past Due | Credit risk    
Disclosure of credit risk exposure [line items]    
Allowance for doubtful account 9,500 10,500
Performing Financial Instruments | Credit risk    
Disclosure of credit risk exposure [line items]    
Trade receivables 1,681,500 892,300
Performance Guarantee | Credit risk    
Disclosure of credit risk exposure [line items]    
Trade receivables 30,300 1,300
Credit Insurance | Credit risk    
Disclosure of credit risk exposure [line items]    
Trade receivables 800,100 422,800
Guarantee Type, Other | Credit risk    
Disclosure of credit risk exposure [line items]    
Trade receivables $ 8,400 $ 7,300