v3.26.1
Long-Term Debt - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Long-Term Debt          
Interest costs capitalized $ 1.0 $ 0.8 $ 2.1 $ 1.6  
DOE Loan          
Long-Term Debt          
Deferred issuance costs $ 19.2   $ 19.2   $ 28.6