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Investments - Variable Interest Entities (Details)	Jun. 30, 2026	Jan. 30, 2026
BKV-BPP Power, LLC
Schedule of Equity Method Investments [Line Items]
Percentage owned by parent	75.00%	75.00%

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 205
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