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Inventoried Costs
6 Months Ended
Jun. 30, 2024
Inventory Disclosure [Abstract]  
Inventoried Costs Inventoried Costs
 
Inventoried costs, consisted of the following components (in millions):
 
 June 30, 2024December 31, 2023
Raw materials$84.9 $78.0 
Work in process66.0 72.9 
Finished goods3.9 5.3 
Total inventoried costs$154.8 $156.2