XML 110 R54.htm IDEA: XBRL DOCUMENT v3.20.1
Inventories (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Inventory Disclosure [Abstract]    
Raw material and subassemblies $ 221,768 $ 224,239
Work-in-progress 52,271 44,344
Finished goods 123,487 120,179
Total inventories $ 397,526 $ 388,762