INVENTORIES (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Inventories [Abstract]
Raw material	$ 192,843	$ 168,619
Work-in-process	100,951	89,832
Finished goods and component parts	86,644	81,544
Inventory costs related to U.S. Government and other long-term contracts	35,073	35,347
Gross inventories	415,511	375,342
Less: Inventory reserves	(48,360)	(48,547)
Progress payments applied, principally related to long-term contracts	(11,768)	(13,750)
Inventories, net	$ 355,383	$ 313,045