Inventories (Schedule Of Inventories) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Inventory Disclosure [Abstract]
Raw materials and supplies	$ 202,161	$ 230,057
Work in process	241,096	213,948
Finished goods	87,381	73,293
Inventories, gross	530,638	517,298
Reserves	(11,627)	(4,233)
Inventories, net	$ 519,011	$ 513,065