Represents the maximum amount of the given debt instrument the Company may redeem before the given date.

No definition available.

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

- Definition

Allowable increase to Berry's restricted payments basket.

+ References

No definition available.

+ Details

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

- Definition

Senior Notes Redemption Price, Notice Period in Days

+ References

No definition available.

+ Details

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Namespace Prefix:	bry_
Data Type:	us-types:durationStringItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

+ Details

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

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Details

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

- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 470

-Section 50

-Paragraph 3

-Subparagraph e

-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

+ Details

Name:	us-gaap_DebtInstrumentRedemptionPricePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of debt premium that was originally recognized at the issuance of the instrument that has yet to be amortized.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 1A

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

+ Details

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

- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

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

- Details

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- Details

Name:	bry_DebtRedemptionPeriodRateAxis=bry_March152018ThroughMarch142019Member
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- Details

Name:	bry_DebtRedemptionPeriodRateAxis=bry_March152019ThroughMarch142020Member
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- Details

Name:	bry_DebtRedemptionPeriodRateAxis=bry_March152020AndThereafterMember
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Balance Type:
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- Details

Name:	bry_DebtRedemptionPeriodRateAxis=bry_March92012ThroughMarch142015Member
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- Details

Name:	bry_DebtRedemptionPeriodRateAxis=bry_March92012ThroughMarch142017Member
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- Details

Name:	us-gaap_DebtInstrumentAxis=bry_SeniorNotes6375Due2022Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
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- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
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Debt 6.375% Senior Notes Due 2022 (Details) (USD $)	12 Months Ended
Debt 6.375% Senior Notes Due 2022 (Details) (USD $)	Dec. 31, 2014	Dec. 16, 2013
Debt Instrument
Percent of future net income allowable to increase Berry's restricted payments basket	50.00%
6.375% Senior notes due 2022
Debt Instrument
Interest rate on debt instrument (as a percent)	6.375%
Senior notes	599,000,000
Long-term debt, fair value		607,000,000
Net unamortized premiums		$ 7,000,000
March 9, 2012 Through March 14, 2015 \| 6.375% Senior notes due 2022
Debt Instrument
Debt Instrument, Redemption Price, Percentage	106.375%
Debt instrument redemption percentage, maximum	35.00%
March 15, 2017 through March 14, 2018 \| 6.375% Senior notes due 2022
Debt Instrument
Debt Instrument, Redemption Price, Percentage	103.188%
March 15, 2018 through March 14, 2019 \| 6.375% Senior notes due 2022
Debt Instrument
Debt Instrument, Redemption Price, Percentage	102.125%
March 15, 2019 through March 14, 2020 \| 6.375% Senior notes due 2022
Debt Instrument
Debt Instrument, Redemption Price, Percentage	101.063%
March 15, 2020 and thereafter \| 6.375% Senior notes due 2022
Debt Instrument
Debt Instrument, Redemption Price, Percentage	100.00%
March 9, 2012 through March 14, 2017 \| 6.375% Senior notes due 2022
Debt Instrument
Debt Instrument, Redemption Price, Percentage	100.00%
Minimum \| 6.375% Senior notes due 2022
Debt Instrument
Senior Notes Redemption Price, Notice Period Range in Days	30 days
Maximum \| 6.375% Senior notes due 2022
Debt Instrument
Senior Notes Redemption Price, Notice Period Range in Days	60 days