XML 41 R27.htm IDEA: XBRL DOCUMENT v3.25.3
Inventories (Tables)
9 Months Ended
Sep. 30, 2025
Inventory Disclosure [Abstract]  
Schedule of Inventories
“Inventories, net” as of September 30, 2025 and December 31, 2024 consisted of the following:
September 30, 2025December 31, 2024
 (Dollars in millions)
Materials and supplies, net$164.3 $157.5 
Raw coal82.4 109.6 
Saleable coal158.5 126.3 
Inventories, net$405.2 $393.4