v3.26.1
Power Supply Agreements - Schedule of Changes in Estimated Fair Value of Derivative Asset (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Power Purchase Agreement [Line Items]        
Balance beginning     $ 148,048  
Total change in fair value $ (8,362) $ (42,747) (60,214) $ (853)
Balance ending 88,465   88,465  
Rockdale PPA        
Power Purchase Agreement [Line Items]        
Balance beginning     147,026 148,673
Change due to future price curve     (60,301) (3,902)
Change due to passage of time and settlements     1,740 2,220
Total change in fair value     (58,561) (1,682)
Balance ending 88,465 146,991 88,465 146,991
Corsicana PPA        
Power Purchase Agreement [Line Items]        
Balance beginning     1,022 822
Change due to future price curve     (1,902) 657
Change due to passage of time and settlements     249 172
Total change in fair value     (1,653) 829
Balance ending $ (631) $ 1,651 $ (631) $ 1,651