Inventory - Schedule of Inventory (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Inventory Disclosure [Abstract]
Finished goods	$ 50,125	$ 60,766
Contract assets	37,673	37,843
Work-in-process	7,651	5,143
Raw materials	21,929	12,708
Inventories - net	$ 117,378	$ 116,460