v3.25.2
LONG-TERM DEBT - Interest Expense (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Debt Disclosure [Abstract]        
Interest on outstanding borrowings $ 7.0 $ 7.0 $ 14.0 $ 14.0
Amortization of Senior Notes discount and issuance costs 0.5 1.1 1.1 1.7
Interest capitalized for construction in process (3.1) (1.5) (5.7) (2.6)
Commitment fees and other 0.6 0.8 1.3 1.6
Total interest expense $ 5.0 $ 7.4 $ 10.7 $ 14.7