Inventories (Schedule Of Inventories) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Inventories [Abstract]
Raw materials	$ 57,177	$ 48,240
Work in progress	75,380	75,690
Finished goods	201,080	180,100
Inventories gross, total	333,637	304,030
Less: allowance for obsolete and excess inventory	(26,792)	(26,228)
Total	$ 306,845	$ 277,802