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Redeemable Non-Controlling Interests in Subsidiary - Schedule Of Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest (Details)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Class of Stock [Line Items]          
Non-controlling interest holders 64.40% 66.20% 64.40% 66.20%  
OpCo | Non-controlling interest holders          
Class of Stock [Line Items]          
Non-controlling interest holders     64.40%   64.40%
OpCo | NET Power Inc.          
Class of Stock [Line Items]          
NET Power Inc. 35.60%   35.60%   35.60%