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Inventories - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Inventory Disclosure [Abstract]        
Inventory write-offs and reserves $ 38.7 $ 11.8 $ 188.0 $ 23.6