Quarterly report pursuant to Section 13 or 15(d)

CONTINGENCIES (Details)

v3.23.3
CONTINGENCIES (Details)
$ in Millions
1 Months Ended 9 Months Ended 12 Months Ended
Jan. 31, 2021
USD ($)
item
installment
Sep. 30, 2023
USD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2010
USD ($)
Additional royalty due to disallowed deductions         $ 4.7
Decommissioning obligations   $ 4.7      
Additional decommissioning obligations   2.1      
Loss of decommissioning obligations   17.8      
Loss contingency in period     $ 20.4 $ 20.4  
Surety bond          
Loss contingency   8.9      
Value of surety bond   $ 8.9      
Resolved          
Number of pending civil penalties | item 9        
Annual installment $ 0.7        
Number of annual installments | installment 3