v3.25.2
INCOME TAXES (Details 1) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Hidrogenii JV [Line Items]        
Effective Tax Rate, Discrete Items, net benefit (expense) $ 3.3 $ 0.6 $ 2.9 $ 3.3
Effective Tax Rate, Discrete Items, net benefit (expense) $ 3.3 $ 0.6 $ 2.9 $ 3.3
Effective Tax Rate, Discrete Items, net Percent (10.30%) (25.80%) (4.30%) (25.60%)
Statutory Federal Tax Rate 21.00% 21.00% 21.00% 21.00%
Investment Tax Credit $ 22.0      
Reconciliation of Unrecognized Tax Benefits [Roll Forward]        
Balance at beginning of year     $ 21.1 $ 50.3
Increases for prior year tax positions     1.5 2.7
Decreases for prior year tax positions     0.2 0.4
Increases for current year tax positions     0.7 0.7
Decreases due to tax settlements     (0.8) (1.0)
Foreign currency translation adjustments     0.0 1.1
Balance at end of period 22.3 $ 51.2 22.3 $ 51.2
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit 9.5   $ 9.5  
Hidrogenii        
Hidrogenii JV [Line Items]        
Effective Tax Rate, Discrete Items, net benefit (expense) 2.6      
Effective Tax Rate, Discrete Items, net benefit (expense) $ 2.6