XML 91 R72.htm IDEA: XBRL DOCUMENT v3.22.4
Financial Instruments and Risk Management - Foreign Currency Risk, Interest Rate Risk, Interest Rate Swaps and Commodity Price Risk (Details)
$ in Thousands
Dec. 31, 2022
CAD ($)
usdPerBbl
Dec. 31, 2022
USD ($)
usdPerBbl
Dec. 31, 2021
USD ($)
Currency risk      
Disclosure of nature and extent of risks arising from financial instruments [line items]      
Increase/decrease risk in foreign exchange rate $ 0.01    
Effect on net income 4,200,000    
Currency risk | U.S. dollar denominated, liabilities      
Disclosure of nature and extent of risks arising from financial instruments [line items]      
U.S. dollar denominated   $ 430,171 $ 829,934
Currency risk | U.S. dollar denominated, assets      
Disclosure of nature and extent of risks arising from financial instruments [line items]      
U.S. dollar denominated   $ 6,980 $ 602,503
Interest rate risk      
Disclosure of nature and extent of risks arising from financial instruments [line items]      
Effect on net income $ 3,800,000    
Impact of base point change on interest rates 100.00% 100.00%  
Commodity price risk | Oil Price      
Disclosure of nature and extent of risks arising from financial instruments [line items]      
Potential impact of crude oil price changes | usdPerBbl 1.00 1.00  
Potential impact of natural gas price changes $ 4,700,000