Inventory - Schedule of Inventories (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Inventory Disclosure [Abstract]
Raw materials	$ 42,978	$ 34,577
Work in process	43,010	54,061
Finished goods	30,470	13,165
Total inventory	$ 116,458	$ 101,803