XML 11 R56.htm IDEA: XBRL DOCUMENT v3.20.1
Inventory - Components of Inventory (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Inventory Disclosure [Abstract]    
Raw materials $ 1,841 $ 2,278
Work in process 135,474 137,858
Finished goods 36,925 42,096
Total inventory 174,240 182,232
Inventory 111,854 116,349
Other assets $ 62,386 $ 65,883