Asset Acquisition, Consideration, Equity Value Threshold

No definition available.

Name:	bkv_AssetAcquisitionConsiderationEquityValueThreshold
Namespace Prefix:	bkv_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Asset Acquisition, Consideration Transferred, Equity Interest, Share Issued, Number Of Shares

+ References

No definition available.

+ Details

Name:	bkv_AssetAcquisitionConsiderationTransferredEquityInterestShareIssuedNumberOfShares
Namespace Prefix:	bkv_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Asset Acquisition , Convertible, Threshold Consecutive Trading Days

+ References

No definition available.

+ Details

Name:	bkv_AssetAcquisitionConvertibleThresholdConsecutiveTradingDays
Namespace Prefix:	bkv_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Equity Investments, Capital Call

+ References

No definition available.

+ Details

Name:	bkv_EquityInvestmentsCapitalCall
Namespace Prefix:	bkv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Equity Investments, Contributed Capital Place In Debt Reserve Account

+ References

No definition available.

+ Details

Name:	bkv_EquityInvestmentsContributedCapitalPlaceInDebtReserveAccount
Namespace Prefix:	bkv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Equity Investments, Contributed Capital, Shares

+ References

No definition available.

+ Details

Name:	bkv_EquityInvestmentsContributedCapitalShares
Namespace Prefix:	bkv_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Sale of Stock, Consideration Received on Transaction, Gross

+ References

No definition available.

+ Details

Name:	bkv_SaleOfStockConsiderationReceivedOnTransactionGross
Namespace Prefix:	bkv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Sale Of Stock, Number Of Days Following Initial Public Offering, Threshold

+ References

No definition available.

+ Details

Name:	bkv_SaleOfStockNumberOfDaysFollowingInitialPublicOfferingThreshold
Namespace Prefix:	bkv_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Share Price, Weighted Average Over Consecutive Trading Days

+ References

No definition available.

+ Details

Name:	bkv_SharePriceWeightedAverageOverConsecutiveTradingDays
Namespace Prefix:	bkv_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Temporary Equity, Conversion, Shares

+ References

No definition available.

+ Details

Name:	bkv_TemporaryEquityConversionShares
Namespace Prefix:	bkv_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of acquirer's equity interest issued and issuable as part of consideration transferred in asset acquisition.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 805
-SubTopic 50
-Name Accounting Standards Codification
-Section 25
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480060/805-50-25-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 805
-SubTopic 50
-Name Accounting Standards Codification
-Section 30
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480027/805-50-30-1

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 805
-SubTopic 50
-Name Accounting Standards Codification
-Section 30
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480027/805-50-30-2

+ Details

Name:	us-gaap_AssetAcquisitionConsiderationTransferredEquityInterestIssuedAndIssuable
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- 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

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

- Definition

Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

Name:	us-gaap_CommonStockSharesIssued
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-SubTopic 10
-Topic 505
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-2

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.6-05(4))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479170/946-210-S99-2

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 3
-Subparagraph (SX 210.6-09(4)(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479134/946-220-S99-3

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-04(16)(a))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479170/946-210-S99-1

Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 3
-Subparagraph (SX 210.6-09(7))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479134/946-220-S99-3

+ Details

Name:	us-gaap_CommonStockSharesOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash outflow for cost incurred directly with the issuance of an equity security.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-15

+ Details

Name:	us-gaap_PaymentsOfStockIssuanceCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Cash received on stock transaction after deduction of issuance costs.

+ References

No definition available.

+ Details

Name:	us-gaap_SaleOfStockConsiderationReceivedOnTransaction
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

+ References

No definition available.

+ Details

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

- Definition

Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

+ References

No definition available.

+ Details

Name:	us-gaap_SaleOfStockPricePerShare
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 4
-Subparagraph (SAB Topic 4.C)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-4

+ Details

Name:	us-gaap_StockholdersEquityNoteStockSplitConversionRatio1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_AssetAcquisitionAxis=bkv_BedrockAcquisitionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=bkv_PublicOfferingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=us-gaap_IPOMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=us-gaap_OverAllotmentOptionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Stockholders' Equity and Mezzanine Equity - Reverse Stock Split, Equity Offerings, and Common Shares Issued and Outstanding (Details) $ / shares in Units, $ in Thousands						12 Months Ended
	Dec. 03, 2025 USD ($) $ / shares shares	Sep. 29, 2025 USD ($) D $ / shares shares	Oct. 28, 2024 USD ($) shares	Sep. 27, 2024 USD ($) D $ / shares shares	Oct. 30, 2023	Dec. 31, 2024 USD ($) shares	Dec. 31, 2023 USD ($)	Dec. 31, 2025 shares	Sep. 27, 2023 USD ($) shares
Capital Unit [Line Items]
Stock split, conversion ratio					0.5
Payments of stock issuance costs						$ 3,879	$ 2,901
Asset acquisition, consideration, equity value threshold		$ 110,000
Temporary equity, conversion, shares (in shares) \| shares				5,026,638
Capital call									$ 150,000
Contributed capital (in shares) \| shares									7,500,000
Contributed capital									$ 138,300
Common stock, issued (in shares) \| shares						84,600,301		96,871,868
Common stock, outstanding (in shares) \| shares						84,600,301		96,871,868
Bedrock Acquisition
Capital Unit [Line Items]
Sale of stock, price per share (in USD per share) \| $ / shares		$ 23.74
Payments of stock issuance costs		$ 300
Shares of BKV Corporation's common stock (in shares) \| shares		5,233,957
Share price, weighted average over consecutive trading days (in USD per share) \| $ / shares		$ 21.0166
Asset acquisition, convertible, threshold consecutive trading days \| D		20
Equity issued as consideration for acquisition		$ 124,254
Public Offering
Capital Unit [Line Items]
IPO shares (in shares) \| shares	6,900,000
Sale of stock, price per share (in USD per share) \| $ / shares	$ 26
Gross proceeds	$ 179,400
Payments of stock issuance costs	9,300
Aggregate purchase price	$ 170,100
IPO
Capital Unit [Line Items]
IPO shares (in shares) \| shares				15,000,000
Sale of stock, price per share (in USD per share) \| $ / shares				$ 18
Payments of stock issuance costs				$ 16,200
Aggregate purchase price				$ 253,800
Over-Allotment Option
Capital Unit [Line Items]
IPO shares (in shares) \| shares			701,003	2,250,000
Payments of stock issuance costs			$ 800
Aggregate purchase price			$ 11,900
Number of days following initial public offering, threshold \| D				30