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Oil and Gas Properties - Schedule of PPE Activity, Oil and Gas (Details) - CAD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Reconciliation of changes in property, plant and equipment [abstract] |  |
Impairment reversal | $ 245,241 | $ 0
Oil and gas assets |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Balance, beginning of year | 4,464,371 | 3,077,548
Capital expenditures | 515,183 | 310,005
Property acquisitions | 1,173 | 274
Transfers from exploration and evaluation assets | 8,496 | 7,727
Change is asset retirement obligations | (147,020) | (12,222)
Divestitures | (23,274) | (4,991)
Property swaps |  | (231)
Impairment reversal | 245,241 | 1,542,414
Foreign currency translation | 137,629 | 2,788
Depletion | (581,033) | (458,941)
Balance, end of year | 4,620,766 | 4,464,371
Oil and gas assets | Cost |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Balance, beginning of year | 11,633,517 | 11,423,676
Capital expenditures | 515,183 | 310,005
Property acquisitions | 1,173 | 274
Transfers from exploration and evaluation assets | 8,496 | 7,727
Change is asset retirement obligations | (147,020) | (12,222)
Divestitures | (265,166) | (37,835)
Property swaps |  | (26,131)
Impairment reversal | 0 | 0
Foreign currency translation | 296,033 | (31,977)
Depletion | 0 | 0
Balance, end of year | 12,042,216 | 11,633,517
Oil and gas assets | Accumulated depletion |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Balance, beginning of year | (7,169,146) | (8,346,128)
Capital expenditures | 0 | 0
Property acquisitions | 0 | 0
Transfers from exploration and evaluation assets | 0 | 0
Change is asset retirement obligations | 0 | 0
Divestitures | 241,892 | 32,844
Property swaps |  | 25,900
Impairment reversal | 245,241 | 1,542,414
Foreign currency translation | (158,404) | 34,765
Depletion | (581,033) | (458,941)
Balance, end of year | $ (7,421,450) | $ (7,169,146)

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- Definition The amount of additions to investment property resulting from acquisitions. [Refer: Investment property] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2022-03-24 -Paragraph 76 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=40&code=ifrs-tx-2022-en-r&anchor=para_76_a&doctype=Standard -URIDate 2022-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2022-03-24 -Paragraph 79 -Subparagraph d -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=40&code=ifrs-tx-2022-en-r&anchor=para_79_d_i&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The amount of depreciation of property, plant and equipment. [Refer: Depreciation and amortisation expense; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2022-03-24 -Paragraph 73 -Subparagraph e -Clause vii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2022-en-r&anchor=para_73_e_vii&doctype=Standard -URIDate 2022-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2022-03-24 -Paragraph 75 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2022-en-r&anchor=para_75_a&doctype=Standard -URIDate 2022-03-24 + Details
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