Name:	bry_CommonStockLiquidationPreferenceValue
Namespace Prefix:	bry_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

Represents the dividend payment limitation per indentures covenants, calculated as an amount per share annually

No definition available.

Name:	bry_DividendPaymentLimitationPerIndenturesCovenantsAnnualAmountPerShare
Namespace Prefix:	bry_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

Represents the dividend payment limitation per indentures covenants, annual maximum in the event of a non-payment default

No definition available.

Name:	bry_DividendPaymentLimitationPerIndenturesCovenantsAnnualMaximumUnderNonPaymentDefault
Namespace Prefix:	bry_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Represents the dividend payment limitation per indentures covenants, overall annual maximum

No definition available.

Name:	bry_DividendPaymentLimitationPerindenturesCovenantsOverallAnnualMaximum
Namespace Prefix:	bry_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Represents the limit on dividend payments, in terms of amount distributed, per the financial covenants of the credit facility

No definition available.

Name:	bry_DividendsPaymentAmountLimitPerCreditFacilityCovenant
Namespace Prefix:	bry_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Represents the number of quarters that must be considered in the period when determining the dividend payment limitation, as set forth by the credit facility covenants

No definition available.

Name:	bry_DividendsPaymentLimitationPerCreditFacilityCovenantQuartersConstitutingOnePeriod
Namespace Prefix:	bry_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Represents the limit on dividend payments, as a percent of net earnings, per the financial covenants of the credit facility

No definition available.

Name:	bry_DividendsPaymentLimitPerCreditFacilityCovenantPercentOfNetEarnings
Namespace Prefix:	bry_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

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

Aggregate dividends paid during the period for each share of common stock outstanding.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Name:	us-gaap_CommonStockDividendsPerShareCashPaid
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

Description of voting rights of common stock. Includes eligibility to vote and votes per share owned. Include also, if any, unusual voting rights.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644

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

The number of new shares issued in the conversion of stock in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4313-108586

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586

Name:	us-gaap_ConversionOfStockSharesIssued1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

Name:	bry_DividendPaymentsLimitedByCovenantsAxis=bry_DividendPaymentsLimitedByCovenantsInCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	bry_DividendPaymentsLimitedByCovenantsAxis=bry_DividendPaymentsLimitedByCovenantsInIndenturesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassBMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: