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Debt - BKV-BPP Power Loan Agreements and Credit Facilities (Details) - USD ($) $ in Thousands				6 Months Ended
	Nov. 21, 2021	Nov. 01, 2021	Oct. 14, 2021	Jun. 30, 2026	Dec. 31, 2025	Jul. 10, 2023	Oct. 15, 2021
Debt Instrument [Line Items]
Debt instrument, face amount				$ 186,000	$ 201,000
Senior Notes | Temple I Loan Agreements
Debt Instrument [Line Items]
Debt instrument, face amount			$ 141,000				$ 141,000
Proceeds from issuance of senior long-term debt	$ 141,000	$ 141,000
Credit spread adjustment			5.25%
Senior Notes | Temple I Loan Agreements | BNAC
Debt Instrument [Line Items]
Minimum net worth requirement			$ 120,000
Long-term debt, gross				88,000
Senior Notes | Temple I Loan Agreements | BPPUS
Debt Instrument [Line Items]
Minimum net worth requirement			$ 40,000
Long-term debt, gross					95,500
Secured Debt | Temple Term Loan Facility
Debt Instrument [Line Items]
Debt instrument, face amount				$ 10,000	10,000
Credit spread adjustment				4.60%
Long-term debt, gross				$ 371,369	390,947
Maximum borrowing capacity				371,998	$ 391,883	$ 500,000
Repayments of debt				$ 2,500
Secured Debt | BKV-BPP Power Credit Facility | Line of Credit
Debt Instrument [Line Items]
Collateral held, percent				100.00%
Effective interest rate				8.13%	8.86%

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