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Acquisition - BKV-BPP Power Joint Venture Transaction (Details) $ / shares in Units, $ in Thousands |  |  | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Jan. 30, 2026 USD ($) d $ / shares shares | Oct. 29, 2025 d | Jun. 30, 2026 USD ($) | Jun. 30, 2026 USD ($) | Jan. 29, 2026 | Dec. 31, 2025 USD ($)
Business Combination [Line Items] |  |  |  |  |  |
Total debt, net |  |  | $ 1,249,841 | $ 1,249,841 |  | $ 1,138,111
BKV-BPP Power |  |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |  |
Percentage owned by parent | 75.00% |  | 75.00% | 75.00% |  |
BKV-BPP Power | BPPUS |  |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |  |
Percentage owned by noncontrolling members | 25.00% |  |  |  |  |
BKV-BPP Power |  |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |  |
Total debt, net | $ 582,900 |  |  |  |  |
BKV-BPP Power |  |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |  |
Equity method investment, ownership percentage |  |  |  |  | 50.00% |
BPPUS | BKV-BPP Power |  |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |  |
Percentage of noncontrolling interest (percent) | 0.25 |  |  |  | 0.25 |
BKV-BPP Power |  |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |  |
Payments to acquire businesses, gross | $ 115,100 |  |  |  |  |
Consideration transferred, equity interest, (in shares) | shares | 5,315,390 |  |  |  |  |
Equity consideration lock-up period | d | 180 |  |  |  |  |
Business combination, aggregate consideration | $ 376,000 |  |  |  |  |
Business combination, consideration transferred, cash, percentage | 50.00% |  |  |  |  |
Business combination, consideration transferred, equity interest, percentage | 50.00% |  |  |  |  |
Percentage of purchase price | 50.00% |  |  |  |  |
BKV common stock price (in USD per share) | $ / shares | $ 21.6609 |  |  |  |  |
Business combination, threshold consecutive trading days | d |  | 20 |  |  |  |
Acquisition-related cost, expense |  |  |  | $ 17,300 |  |
BKV-BPP Power | Location, Statement of Income, Balance [Axis]: us-gaap:OtherGeneralExpense |  |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |  |
Acquisition-related cost, expense |  |  | $ 4,300 | 8,000 |  |
BKV-BPP Power | Location, Statement of Financial Position, Activity, Capitalization [Axis]: us-gaap:AdditionalPaidInCapital |  |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |  |
Acquisition-related cost, expense |  |  |  | $ 9,300 |  |

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