Quarterly report pursuant to Section 13 or 15(d)

Inventories (Details)

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Inventories (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2013
Dec. 31, 2012
Inventories [Abstract]    
Finished goods $ 48,274 $ 53,009
Work-in-process 1,168 1,112
Raw materials and supplies 7,751 6,543
Inventories $ 57,193 $ 60,664