Name:	batl_CreditFacilityBorrowingBaseRedeterminationPrepaymentDeficiencyPercentageOfEffectiveBorrowingBase
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Represents the waiver to unwind certain swap agreements for which settlement payments are calculated as percentage of actual production.

No definition available.

Name:	batl_CreditFacilityWaiverSettlementPaymentAsPercentageOfActualProduction
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Data Type:	num:percentItemType
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Period Type:	duration

Represents the current ratio (as defined in the Exit Credit Agreement).

No definition available.

Name:	batl_CurrentRatio
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Data Type:	xbrli:pureItemType
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Period Type:	duration

Represents the maintenance of current ratio waived under senior secured revolving credit agreement waiver.

No definition available.

Name:	batl_CurrentRatioWaived
Namespace Prefix:	batl_
Data Type:	xbrli:pureItemType
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The threshold total net indebtedness leverage ratio under the debt instrument.

No definition available.

Name:	batl_DebtInstrumentThresholdTotalNetIndebtednessLeverageRatio
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Represents the number of consecutive semi-annual redeterminations between which the entity and the lenders, each of whom have the right to a specified number of interim unscheduled redeterminations of the borrowing base under the credit facility.

No definition available.

Name:	batl_LineOfCreditFacilityBorrowingBaseNumberOfConsecutiveSemiAnnualRedeterminationsBetweenWhichInterimUnscheduledRedeterminationIsAvailable
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Data Type:	xbrli:integerItemType
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Represents the number of interim unscheduled redeterminations of borrowing base available to the entity and the lender under the credit facility.

No definition available.

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Data Type:	xbrli:integerItemType
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Represents the minimum volume allowed under commodity hedging agreements expressed as a percentage of projected production.

No definition available.

Name:	batl_LineOfCreditFacilityCovenantCommodityHedgingAgreementMinimumVolumePercentage
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Data Type:	num:percentItemType
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Period Type:	duration

Maximum cash balance to be carried before needing to repay borrowings

No definition available.

Name:	batl_MaximumCashBalanceToBeCarriedBeforeNeedingToRepayBorrowings
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Maximum uncontested accounts payable or accrued expenses, liabilities or other obligations from remaining outstanding for longer than 90 days

No definition available.

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Namespace Prefix:	batl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Minimum mortgaged total value of proved Borrowing Base Properties

No definition available.

Name:	batl_MinimumMortgagedTotalValueOfProvedBorrowingBaseProperties
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

The amount of scheduled borrowing base rate reduction per month.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

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Data Type:	num:percentItemType
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The maximum amount of borrowing capacity under a line of credit that is available as of the balance sheet date for a specific purpose other than for financing goods acquired for inventory or imminent delivery to a customer.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Identification of whether the entity has been in compliance with any credit facility debt covenants during the period.

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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Name:	us-gaap_LongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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