Quarterly report [Sections 13 or 15(d)]

COMMITMENTS AND CONTINGENCIES (Details)

v3.25.2
COMMITMENTS AND CONTINGENCIES (Details)
$ in Millions
6 Months Ended
Jun. 30, 2025
USD ($)
item
Nov. 08, 2024
USD ($)
Oct. 21, 2024
USD ($)
Oct. 09, 2024
USD ($)
Jun. 30, 2025
USD ($)
Dec. 31, 2010
USD ($)
Additional royalty due to disallowed deductions $ 4.7       $ 4.7 $ 4.7
Accrued Royalties 5.0       5.0  
Estimated penalties 0.3       0.3  
Decommissioning obligations         1.4  
Increase in decommissioning obligation accrual         13.7  
Accrual for decommissioning obligations $ 34.8       $ 34.8  
The Sureties            
Surety bonds issued   $ 183.7        
Philadelphia Indemnity Insurance Company            
Surety bonds issued   71.0        
The Sureties and PIIC            
Surety bonds issued   254.7        
Surety Bonds            
Surety bonds issued     $ 111.0 $ 55.0    
Cancelled bonds       13.1    
Cash collateral     $ 23.0 $ 55.0    
Surety Bonds | The Sureties            
Surety providers | item 2          
Surety bonds issued $ 105.0          
Surety Bonds | Applied litigation            
Surety bonds issued   11.3        
Cash collateral   11.3        
Unpaid in loss contingency   0.4        
Surety Bonds | U.S. Fire Litigation            
Surety bonds issued   93.5        
Cash collateral   $ 93.5