INVENTORIES (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Inventories [Abstract]
Raw material	$ 168,619	$ 147,950
Work-in-process	97,420	69,302
Finished goods and component parts	81,544	73,419
Inventory costs related to U.S. Government and other long-term contracts	35,347	41,029
Gross inventories	382,930	331,700
Less: Inventory reserves	(48,547)	(41,596)
Progress payments applied, principally related to long-term contracts	(13,750)	(9,001)
Inventories, net	$ 320,633	$ 281,103