v3.26.1
BASIS OF PRESENTATION - Investment (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Feb. 05, 2026
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Investments          
Proceeds from sale of Hycroft       $ 29.7  
Gains (loss) on investments       $ 16.5 $ 2.5
Hycroft          
Investments          
Common shares to purchase upon exercise of remaining warrants 1,000,824        
Shares received from exercise of warrants 765,440        
Number of shares sold       700,000  
Proceeds from sale of Hycroft       $ 29.7  
Common shares remaining   129,478   129,478  
Hycroft | Location, Statement of Income, Balance [Axis]: us-gaap:InvestmentIncomeNet          
Investments          
Gains (loss) on investments   $ (1.5) $ (0.3) $ 16.5 $ 2.5