v3.26.1
ASSET RETIREMENT OBLIGATION: (Details)
$ in Millions
1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Mar. 19, 2025
Dec. 31, 2025
USD ($)
Mar. 31, 2026
USD ($)
Jun. 30, 2026
USD ($)
item
Jun. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
Jan. 31, 2026
USD ($)
ASSET RETIREMENT OBLIGATION:              
Period for updation of guarantee constitution table 3 years            
Asset retirement obligation activity              
Balance at the beginning of the year     $ 471.1 $ 471.1 $ 546.1 $ 546.1  
Changes in estimates       9.2 (48.5)    
Closure payments       (2.4)      
Accretion expense       12.8 12.2    
Balance at the end of the year   $ 471.1   $ 490.7 $ 509.9 471.1  
Peru              
ASSET RETIREMENT OBLIGATION:              
Number of units with future closure costs recognized as an asset retirement obligation | item       3      
Period after which successive reviews are required by the law (in years)       5 years      
Percentage of guarantee for Lima office complex       26.00%      
Percentage of security for letter of credit       74.00%      
Total guarantees             $ 110.3
Change in asset retirement liability   (5.7) 9.2        
Asset retirement obligation activity              
Changes in estimates   (2.6) 6.0        
Accretion expense   $ 3.1          
Increase in cost of goods sold     $ 3.2        
Mexico              
ASSET RETIREMENT OBLIGATION:              
Change in asset retirement liability           (106.7)  
Asset retirement obligation activity              
Changes in estimates           48.8  
Accretion expense           $ 57.9