XML 65 R54.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Oil and Gas Properties - Additional Information (Details) | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Mar. 31, 2020 CAD ($) cashGeneratingUnit | Jun. 30, 2021 CAD ($) cashGeneratingUnit | Dec. 31, 2021 CAD ($) cashGeneratingUnit | Dec. 31, 2020 CAD ($) cashGeneratingUnit | Dec. 31, 2019 CAD ($)
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |  |
Number of cash generating units | cashGeneratingUnit | 6 | 6 | 5 | 6 |
Number of cash generating units, with recoverable amounts | cashGeneratingUnit |  |  | 3 |  |
Reversal of impairment loss recognised in profit or loss |  | $ 1,100,000,000 |  | $ 341,326,000 |
Impairment loss (reversal of impairment loss) recognised in profit or loss |  | $ 1,126,415,000 | $ 416,000,000 |  |
Adjusted inflation for prices and costs subsequent to 2023 |  | 0.020 | 0.020 | 0.02 |
Conventional CGU |  |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |  |
Reversal of impairment loss recognised in profit or loss |  |  |  | $ 0 |
Impairment loss (reversal of impairment loss) recognised in profit or loss |  | $ 15,000,000 | $ 19,000,000 |  |
Conventional, Peace River, Lloydminster, And Duvernay |  |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |  |
Impairment loss (reversal of impairment loss) recognised in profit or loss |  |  |  | 0 |
Viking And Eagle Ford Cash Generating Units |  |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |  |
Reversal of impairment loss recognised in profit or loss |  |  |  | 341,300,000 |
Oil and gas assets |  |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |  |
Write-downs (reversals of write downs) |  |  | (1,500,000,000) | $ 2,200,000,000 |
Impairment loss (reversal of impairment loss) recognised in profit or loss |  |  | $ 1,542,414,000 |  | $ (2,247,162,000)
Impairment | $ (2,600,000,000) |  |  |  |
Oil and gas assets | Minimum |  |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |  |
Discount rate applied to cash flow projections | 8.00% | 10.00% | 12.00% | 10.00% |
Oil and gas assets | Maximum |  |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |  |
Discount rate applied to cash flow projections | 14.00% | 16.00% | 19.00% | 17.00% |
Oil and gas assets | Accumulated depreciation |  |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |  |
Impairment loss (reversal of impairment loss) recognised in profit or loss |  |  | $ 1,542,414,000 | $ (2,247,162,000) |

X
- Definition Inflation Rate Applied To Cash Flow Projections + References No definition available. + Details
Name: | bte_InflationRateAppliedToCashFlowProjections
Namespace Prefix: | bte_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number Of Cash Generating Units + References No definition available. + Details
Name: | bte_NumberOfCashGeneratingUnits
Namespace Prefix: | bte_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number Of Cash Generating Units, With Recoverable Amounts + References No definition available. + Details
Name: | bte_NumberOfCashGeneratingUnitsWithRecoverableAmounts
Namespace Prefix: | bte_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The discount rate applied to cash flow projections for a cash-generating unit (group of units). [Refer: Cash-generating units [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2021-01-01 -Paragraph 134 -Subparagraph d -Clause v -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=36&code=ifrs-tx-2021-en-r&anchor=para_134_d_v&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2021-01-01 -Paragraph 134 -Subparagraph e -Clause v -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=36&code=ifrs-tx-2021-en-r&anchor=para_134_e_v&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_DescriptionOfDiscountRatesAppliedToCashFlowProjections
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of impairment loss recognised in profit or loss for property, plant and equipment. [Refer: Impairment loss recognised in profit or loss; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2021-01-01 -Paragraph 73 -Subparagraph e -Clause v -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2021-en-r&anchor=para_73_e_v&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 98 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_98_a&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of impairment loss or reversal of impairment loss recognised in profit or loss. [Refer: Impairment loss recognised in profit or loss; Reversal of impairment loss recognised in profit or loss] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 99 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_99&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of reversal of impairment loss recognised in profit or loss. [Refer: Reversal of impairment loss; Profit (loss)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2021-01-01 -Paragraph 126 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=36&code=ifrs-tx-2021-en-r&anchor=para_126_b&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2021-01-01 -Paragraph 129 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=36&code=ifrs-tx-2021-en-r&anchor=para_129_b&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_ReversalOfImpairmentLossRecognisedInProfitOrLoss
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount recognised resulting from the write-down of property, plant and equipment to its recoverable amount or reversals of those write-downs. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 98 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_98_a&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_WritedownsReversalsOfPropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis=bte_ConventionalCashGeneratingUnitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis=bte_ConventionalPeaceRiverLloydminsterAndDuvernayMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis=bte_VikingAndEagleFordCashGeneratingUnitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_OilAndGasAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis=ifrs-full_AccumulatedDepreciationAndAmortisationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |