Sensitivity Analysis For Types Of Market Risk, Reasonably Possible Change In Risk Variable, Amount

No definition available.

Name:	bte_SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleChangeInRiskVariableAmount
Namespace Prefix:	bte_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Sensitivity Analysis For Types Of Market Risk, Reasonably Possible Change In Risk Variable, Impact On Pre-Tax Earnings

+ References

No definition available.

+ Details

Name:	bte_SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleChangeInRiskVariableImpactOnPreTaxEarnings
Namespace Prefix:	bte_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Sensitivity Analysis For Types Of Market Risk, Reasonably Possible Change In Risk Variable, Percentage

+ References

No definition available.

+ Details

Name:	bte_SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleChangeInRiskVariablePercentage
Namespace Prefix:	bte_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Sensitivity Analysis For Types Of Market Risk, Reasonably Possible Increase In Risk Variable, Impact On Pre-Tax Earnings

+ References

No definition available.

+ Details

Name:	bte_SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleIncreaseInRiskVariableImpactOnPreTaxEarnings
Namespace Prefix:	bte_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Sensitivity Analysis For Types Of Market Risk, Reasonably Possible Increase In Risk Variable, Percent

+ References

No definition available.

+ Details

Name:	bte_SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleIncreaseInRiskVariablePercent
Namespace Prefix:	bte_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

Trade Receivables Collection Period

+ References

No definition available.

+ Details

Name:	bte_TradeReceivablesCollectionPeriod
Namespace Prefix:	bte_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- 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_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of assets that are: (a) cash; (b) an equity instrument of another entity; (c) a contractual right: (i) to receive cash or another financial asset from another entity; or (ii) to exchange financial assets or financial liabilities with another entity under conditions that are potentially favourable to the entity; or (d) a contract that will, or may be, settled in the entity’s own equity instruments and is: (i) a non-derivative for which the entity is, or may be, obliged to receive a variable number of the entity’s own equity instruments; or (ii) a derivative that will, or may be, settled other than by the exchange of a fixed amount of cash or another financial asset for a fixed number of the entity’s own equity instruments. For this purpose the entity’s own equity instruments do not include puttable financial instruments classified as equity instruments in accordance with paragraphs 16A-16B of IAS 32, instruments that impose on the entity an obligation to deliver to another party a pro rata share of the net assets of the entity only on liquidation and are classified as equity instruments in accordance with paragraphs 16C-16D of IAS 32, or instruments that are contracts for the future receipt or delivery of the entity’s own equity instruments. [Refer: Classes of financial instruments [domain]; Financial liabilities]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2024-01-01
-Paragraph 25
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_25&doctype=Standard
-URIDate 2024-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2024-01-01
-Paragraph 35H
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_35H&doctype=Standard
-URIDate 2024-03-27

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2024-01-01
-Paragraph 35M
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_35M&doctype=Standard
-URIDate 2024-03-27

Reference 4: http://www.xbrl.org/2003/role/exampleRef
-Name IFRS
-Number 7
-IssueDate 2024-01-01
-Paragraph 35N
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_35N&doctype=Standard
-URIDate 2024-03-27

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2024-01-01
-Paragraph 35I
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_35I&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_FinancialAssets
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis=ifrs-full_AccumulatedImpairmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfFinancialInstrumentsAxis=ifrs-full_TradeReceivablesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfFinancialAssetsAxis=bte_TradeReceivablesPurchasersOfPetroleumAndNaturalGasMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfFinancialAssetsAxis=bte_TradeReceivablesJointInterestReceivableMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

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

- Details

Name:	ifrs-full_TypesOfRisksAxis=ifrs-full_CurrencyRiskMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_TypesOfRisksAxis=ifrs-full_InterestRateRiskMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_TypesOfRisksAxis=ifrs-full_CommodityPriceRiskMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_HedgedItemsAxis=bte_OilPriceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_HedgedItemsAxis=srt_NaturalGasPerThousandCubicFeetMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Financial Instruments and Risk Management - Additional Information (Details)	12 Months Ended
	Dec. 31, 2024 CAD ($) usdPerBbl usdBbl	Dec. 31, 2023 CAD ($)
Disclosure of nature and extent of risks arising from financial instruments [line items]
Impact of percentage change on interest rates	1.00%
Accumulated impairment [member] \| Trade receivables
Disclosure of nature and extent of risks arising from financial instruments [line items]
Expected credit losses	$ 1,000,000	$ 1,500,000
Trade receivable, purchasers of petroleum and natural gas
Disclosure of nature and extent of risks arising from financial instruments [line items]
Trade receivable typical collection period	25 days
Trade receivable, joint interest receivable \| Minimum
Disclosure of nature and extent of risks arising from financial instruments [line items]
Trade receivable typical collection period	1 month
Trade receivable, joint interest receivable \| Maximum
Disclosure of nature and extent of risks arising from financial instruments [line items]
Trade receivable typical collection period	3 months
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	13,800,000
Interest rate risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Effect on net income	3,400,000
Commodity price risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Effect on net income	$ 9,600,000
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
Potential impact of natural gas price changes	$ 29,700,000
Commodity price risk \| Natural Gas and Natural Gas Liquids (NGL)
Disclosure of nature and extent of risks arising from financial instruments [line items]
Potential impact of crude oil price changes \| usdBbl	0.25