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FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Fair Values Of Financial Assets And Liabilities Measured At Fair Value (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Disclosure of fair value measurement of assets [line items]    
Assets $ 5,244,986 $ 1,750,107
Liabilities (1,305,083) (616,153)
Assets 5,244,986 1,750,107
Recurring measurements    
Disclosure of fair value measurement of assets [line items]    
Net assets 72,314 123,905
Recurring measurements | Level 1    
Disclosure of fair value measurement of assets [line items]    
Net assets 26,748 66,453
Recurring measurements | Level 2    
Disclosure of fair value measurement of assets [line items]    
Net assets 35,818 56,805
Recurring measurements | Level 3    
Disclosure of fair value measurement of assets [line items]    
Net assets 9,748 647
Derivative liabilities | Recurring measurements    
Disclosure of fair value measurement of assets [line items]    
Liabilities (3,881)  
Derivative liabilities | Recurring measurements | Level 1    
Disclosure of fair value measurement of assets [line items]    
Liabilities 0  
Derivative liabilities | Recurring measurements | Level 2    
Disclosure of fair value measurement of assets [line items]    
Liabilities (3,881)  
Derivative liabilities | Recurring measurements | Level 3    
Disclosure of fair value measurement of assets [line items]    
Liabilities 0  
Marketable securities | Recurring measurements    
Disclosure of fair value measurement of assets [line items]    
Assets 26,748 66,453
Assets 26,748 66,453
Marketable securities | Recurring measurements | Level 1    
Disclosure of fair value measurement of assets [line items]    
Assets 26,748 66,453
Assets 26,748 66,453
Marketable securities | Recurring measurements | Level 2    
Disclosure of fair value measurement of assets [line items]    
Assets 0 0
Assets 0 0
Marketable securities | Recurring measurements | Level 3    
Disclosure of fair value measurement of assets [line items]    
Assets 0 0
Assets 0 0
Trade receivables | Recurring measurements    
Disclosure of fair value measurement of assets [line items]    
Assets 38,456 54,164
Assets 38,456 54,164
Trade receivables | Recurring measurements | Level 1    
Disclosure of fair value measurement of assets [line items]    
Assets 0 0
Assets 0 0
Trade receivables | Recurring measurements | Level 2    
Disclosure of fair value measurement of assets [line items]    
Assets 38,456 54,164
Assets 38,456 54,164
Trade receivables | Recurring measurements | Level 3    
Disclosure of fair value measurement of assets [line items]    
Assets 0 0
Assets 0 0
Other current and non-current financial assets | Recurring measurements    
Disclosure of fair value measurement of assets [line items]    
Assets 10,991 3,288
Assets 10,991 3,288
Other current and non-current financial assets | Recurring measurements | Level 1    
Disclosure of fair value measurement of assets [line items]    
Assets 0 0
Assets 0 0
Other current and non-current financial assets | Recurring measurements | Level 2    
Disclosure of fair value measurement of assets [line items]    
Assets 1,243 2,641
Assets 1,243 2,641
Other current and non-current financial assets | Recurring measurements | Level 3    
Disclosure of fair value measurement of assets [line items]    
Assets 9,748 647
Assets $ 9,748 $ 647