INVENTORIES (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Inventory, Net [Abstract]
Raw material	$ 234,423	$ 224,613
Work-in-process	114,203	92,761
Finished goods and component parts	118,082	107,173
Inventoried costs related to long-term contracts	55,695	38,000
Gross inventories	522,403	462,547
Less: Inventory reserves	(54,498)	(50,333)
Progress payments applied	(11,021)	(14,743)
Inventories, net	$ 456,884	$ 397,471