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Inventories (Schedule of Inventory, Current) (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Inventory Disclosure [Abstract]    
Finished goods $ 97,904 $ 84,548
Work in process 11,354 9,906
Raw materials 14,674 14,650
Inventory, Net $ 123,932 $ 109,104