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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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