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Inventory
9 Months Ended
Sep. 30, 2025
Inventory Disclosure [Abstract]  
Inventory
5. Inventory

Inventory consisted of the following (in millions):
September 30,
2025
December 31, 2024
Raw materials and consumables$16.9 $19.6 
Work in process0.5 0.4 
Finished goods0.7 0.8 
Total inventory$18.1 $20.8