XML 76 R64.htm IDEA: XBRL DOCUMENT v3.19.2
Inventories - Summary of Inventories (Detail) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Inventory Disclosure [Abstract]    
Raw materials $ 300,484 $ 235,593
Work-in-process 82,661 61,908
Finished goods 96,352 87,188
Inventories $ 479,497 $ 384,689