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INVENTORIES - Components of Inventory, Net of Reserves (Detail) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Inventory Disclosure [Abstract]    
Raw materials $ 378,481 $ 331,465
Work-in-progress 167,390 145,462
Finished goods 196,763 181,583
Total inventories $ 742,634 $ 658,510