v3.26.1
Inventories
 3 Months Ended
Mar. 31, 2026
Inventory Disclosure [Abstract]  
Inventories Inventories
Inventories on the Consolidated Balance Sheets were as follows:
 March 31, 2026March 31, 2025December 31, 2025
 (In thousands)
Finished products$319,045 $299,032 $304,281 
Raw materials114,830 126,949 91,069 
Supplies and parts46,656 41,070 40,364 
Total$480,531 $467,051 $435,714 

Inventories are valued at the lower of cost or net realizable value using the average cost method. Inventories include production costs incurred as part of our aggregate mining activities. These inventoriable production costs include all mining and processing costs associated with the production of aggregates. Stripping costs incurred during the production phase, which represent costs of removing overburden and waste materials to access mineral deposits, are a component of inventoriable production costs.