Quarterly report pursuant to Section 13 or 15(d)

Inventory, net (Details)

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Inventory, net (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2012
Dec. 31, 2011
Inventory, net    
Raw materials $ 22,441 $ 24,134
Finished goods 31,102 28,007
Allowance for obsolescence (16,752) (15,430)
Total inventory, net $ 36,791 $ 36,711