Reportable Segment - Assets by Segment (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Segment Reporting [Line Items]
Total assets	$ 3,939,257	$ 3,098,777
Operating Segments
Segment Reporting [Line Items]
Total assets	3,610,415	2,999,708
Operating Segments \| Upstream/Midstream
Segment Reporting [Line Items]
Total assets	2,670,434	2,016,352
Operating Segments \| BKV-BPP Power, LLC
Segment Reporting [Line Items]
Total assets	939,981	983,356
Segment reporting, reconciling item, corporate nonsegment
Segment Reporting [Line Items]
Total assets	$ 328,842	$ 99,069

Amount of asset recognized for present right to economic benefit.

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+ Details