XML 65 R55.htm IDEA: XBRL DOCUMENT v3.21.2
Inventories - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Inventory Disclosure [Abstract]        
Inventory write-offs and reserves $ 139.9 $ 0.0 $ 149.3 $ 0.0