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Inventories (Schedule of Inventory, Current) (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2012
Dec. 31, 2011
Finished goods $ 99,258 $ 90,226
Work in process 11,127 10,570
Raw materials 12,396 13,509
Inventory, Net $ 122,781 $ 114,305