Represents the acres of tracts in which the Company has the ability to acquire interest.

No definition available.

Name:	bry_ContractualObligationAcreOfTracts
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Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the amount of penalty, for each well, that is not required to be paid as a result of amendment to certain contractual obligations.

+ References

No definition available.

+ Details

Name:	bry_ContractualObligationAmountPenaltyWaivedPerWell
Namespace Prefix:	bry_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the expenditure that is required to be made by the entity related to a construction obligation.

+ References

No definition available.

+ Details

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Namespace Prefix:	bry_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the penalty as a percentage of difference between the specified amount and the actual amount expended.

+ References

No definition available.

+ Details

Name:	bry_ContractualObligationPenaltyAsPercentageOfDifferenceBetweenSpecifiedAmountAndActualExpended
Namespace Prefix:	bry_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the specified amount for penalty calculation in connection with construction obligation.

+ References

No definition available.

+ Details

Name:	bry_ContractualObligationSpecifiedAmountforPenaltyCalculation
Namespace Prefix:	bry_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The book value of the gathering system for natural gas transportation.

+ References

No definition available.

+ Details

Name:	bry_GatheringSystemBookValue
Namespace Prefix:	bry_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the third party's share of the construction costs, on a percentage basis.

+ References

No definition available.

+ Details

Name:	bry_ThirdPartyShareOfConstructionCostsPercentage
Namespace Prefix:	bry_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Total costs accrued as of the balance sheet date for environmental loss contingencies.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 410
-SubTopic 30
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13207-110859

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 25
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6395460&loc=d3e13647-108346

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

- Definition

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.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717

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

- Definition

The amount of cash paid for the settlement of litigation or for other legal issues during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3536-108585

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

- Details

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Commitments and Contingencies Commitments and Contingencies 2 (Details)		12 Months Ended
	Dec. 31, 2013 USD ($)	Dec. 31, 2015 USD ($) a	Dec. 31, 2014 USD ($)	Dec. 16, 2013 USD ($)
Loss Contingencies [Line Items]
Gathering System, Book Value		$ 5,000,000
Accrual for Environmental Loss Contingencies		0
Payments for Legal Settlements	$ 0	0	$ 0	$ 0
Operating Leases, Rent Expense, Net	$ 302,000	6,000,000	$ 6,000,000	$ 5,000,000
Carry And Earning Agreement [Member]
Loss Contingencies [Line Items]
Contractual Obligation Amount, Penalty Waived Per Well		$ 200,000
Contractual Obligation, Acre Of Tracts \| a		160
Contractual Obligation, Contingent Construction Expense		$ 9,000,000
Third Party Share of Construction Costs, Percentage		50.00%
Contractual Obligation, Penalty as Percentage of Difference Between Specified Amount and Actual Expended		50.00%
Contractual Obligation, Specified Amount for Penalty Calculation		$ 12,000,000