Inventories (Schedule Of Inventories) (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Inventories [Line Items]
Raw materials and supplies	$ 75,536	$ 48,240
Work in progress	81,522	75,690
Finished goods	221,018	180,100
Inventories gross, total	378,076	304,030
Less: allowance for obsolete and excess inventory	(28,023)	(26,228)
Total	$ 350,053	$ 277,802