INVENTORIES (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Inventories [Abstract]
Raw material	$ 224,407	$ 224,613
Work-in-process	116,888	92,761
Finished goods and component parts	111,249	107,173
Inventory costs related to U.S. Government and other long-term contracts	41,125	38,000
Gross inventories	493,669	462,547
Less: Inventory reserves	(55,241)	(50,333)
Progress payments applied, principally related to long-term contracts	(11,004)	(14,743)
Inventories, net	$ 427,424	$ 397,471