v3.26.1
EQUITY - Common Stock (Details)
$ / shares in Units, $ in Millions
 3 Months Ended 12 Months Ended
Aug. 07, 2025
USD ($)
$ / shares
shares
Jun. 21, 2023
shares
Jun. 12, 2023
$ / shares
Jun. 30, 2023
USD ($)
Jun. 30, 2022
$ / T
Dec. 31, 2025
D
$ / shares
shares
Dec. 31, 2024
$ / shares
shares
EQUITY              
Preferred stock, shares authorized (in shares) | shares           50,000,000 50,000,000
Preferred stock, par value (in dollars per share) | $ / shares           $ 0.01 $ 0.01
Common stock, par value (in dollars per share) | $ / shares           $ 0.01  
Percent of royalty fee income         3.00%    
Price per ton of coal processed at preparation plants | $ / T         5    
Price per ton of loaded coal at rail load-out facilities | $ / T         2.5    
Percentage dividend from financial performance of carbon         20    
Threshold trading days volume weighted average price | D           20  
Dividend per share of tracking stock | $ / shares     $ 11        
Retained Earnings              
EQUITY              
Adjustments relating to restructuring of equity | $       $ (102.9)      
Additional Paid-in Capital              
EQUITY              
Adjustments relating to restructuring of equity | $       102.9      
Class A Common Stock              
EQUITY              
Common stock, shares authorized (in shares) | shares           225,000,000 225,000,000
Common stock, par value (in dollars per share) | $ / shares           $ 0.01 $ 0.01
Common Stock, Shares, Issued | shares 10,666,667         55,170,042 43,824,999
Number of votes per common share     1        
Stock Issued During Period, Shares, New Issues | shares           7,200,000  
Price per share | $ / shares $ 18.75            
Share price | $ / shares $ 17.71875            
Net proceeds offering cost (in Dollars) | $ $ 188.1            
Class B Common Stock              
EQUITY              
Common stock, shares authorized (in shares) | shares           35,000,000 35,000,000
Common stock, par value (in dollars per share) | $ / shares           $ 0.01 $ 0.01
Common Stock, Shares, Issued | shares           10,998,695 9,549,914
Distribution ratio   0.2          
Number of votes per common share     1        
Stock Issued During Period, Shares, New Issues | shares   8,201,956          
Class B Common Stock | Common Stock              
EQUITY              
Adjustments relating to restructuring of equity | $       $ 102.9