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Inventories (Schedule Of Inventory Costs) (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Inventories [Abstract]    
Raw materials $ 276,470 $ 266,556
Work in process 86,475 84,673
Finished goods 49,041 50,032
Inventories $ 411,986 $ 401,261