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Inventories (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Inventory [Line Items]    
Inventory Valuation Reserves $ 9.4 $ 4.9
Product [Member]    
Inventory [Line Items]    
Cost of Goods Sold, Overhead $ 5.4 $ 4.3