XML 134 R111.htm IDEA: XBRL DOCUMENT v3.20.4
Financial risk management - Interest rate risk (Details) - Interest rate risk - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Fixed interest rate    
Disclosure of financial instruments by type of interest rate [line items]    
Long-term debt $ 2,140,089 $ 1,692,162
Reasonably possible change in risk variable, percent 1.00%  
Reasonably possible change in risk variable, impact on debt $ 185,200 130,600
Variable interest rate    
Disclosure of financial instruments by type of interest rate [line items]    
Long-term debt $ 223,283 76,691
Reasonably possible change in risk variable, percent 1.00%  
Reasonably possible change in risk variable, impact on pre-tax earnings $ 2,200 800
Unsecured notes | Fixed interest rate    
Disclosure of financial instruments by type of interest rate [line items]    
Long-term debt 1,979,125 1,535,662
Other limited recourse debt facilities | Fixed interest rate    
Disclosure of financial instruments by type of interest rate [line items]    
Long-term debt 160,964 156,500
Other limited recourse debt facilities | Variable interest rate    
Disclosure of financial instruments by type of interest rate [line items]    
Long-term debt 0 1,526
Geismar 3 construction facility | Variable interest rate    
Disclosure of financial instruments by type of interest rate [line items]    
Long-term debt 176,335 0
Egypt limited recourse debt facilities | Variable interest rate    
Disclosure of financial instruments by type of interest rate [line items]    
Long-term debt $ 46,948 $ 75,165