INVENTORIES (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Inventories [Abstract]
Raw material	$ 183,181	$ 168,619
Work-in-process	106,471	97,420
Finished goods and component parts	80,015	81,544
Inventory costs related to U.S. Government and other long-term contracts	47,312	35,347
Gross inventories	416,979	382,930
Less: Inventory reserves	(47,890)	(48,547)
Progress payments applied, principally related to long-term contracts	(14,606)	(13,750)
Inventories, net	$ 354,483	$ 320,633