Inventories (Tables)

9 Months Ended

Sep. 30, 2011

Inventories [Abstract]

Net Components of Inventory

	September 30,			December 31,
(Amounts in thousands)	2011			2010
Raw materials	$	326,241		$	265,742
Work in process		764,525			688,710
Finished goods		339,293			306,083
Less: Progress billings		(279,968	)		(305,541	)
Less: Excess and obsolete reserve		(73,387	)		(68,263	)
Inventories, net	$	1,076,704		$	886,731