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Inventories
12 Months Ended
Dec. 31, 2020
Inventory Disclosure [Abstract]  
Inventories Inventories
The following table summarizes the components of inventory:
 December 31,
 20202019
Raw materials and supplies$124.7 $97.9 
Work in process57.8 47.2 
Finished goods65.9 64.9 
Total inventories, net$248.4 $210.0 
The allowance for excess and obsolete inventory balance at December 31, 2020 and 2019 was $9.7 and $10.6, respectively.