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Inventory - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Inventory - Narrative (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Sep. 30, 2021	Sep. 30, 2020
Inventory Disclosure [Abstract]
Excess inventory reserve	$ 14,600	$ 29,712	$ 0