XML 78 R59.htm IDEA: XBRL DOCUMENT v3.22.4
Asset Retirement Obligations - Changes In Asset Retirement Obligations (Details) - CAD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Reconciliation of changes in other provisions [Abstract]    
Accretion $ 15,683 $ 12,381
Government grants (4,009) (2,857)
Less current portion of asset retirement obligations 12,813 11,080
Non-current portion of asset retirement obligations 576,110 732,603
Asset retirement obligation    
Reconciliation of changes in other provisions [Abstract]    
Balance, beginning of the year 743,683 760,383
Liabilities incurred 19,942 14,845
Liabilities settled (18,351) (6,662)
Liabilities acquired from property acquisitions 950 249
Liabilities divested (3,464) (3,161)
Proceeds from dispositions 0 (4,113)
Accretion 15,683 12,381
Government grants (4,009) (2,857)
Change in estimate 6,124 (9,686)
Changes in discount rates and inflation rates (173,086) (17,381)
Foreign currency translation 1,451 (315)
Balance, end of the year $ 588,923 $ 743,683