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Inventories (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Sep. 30, 2013
Inventory Disclosure [Abstract]    
Finished goods $ 74,893 $ 79,087
Work-in-progress 1,710 2,709
Raw materials 5,235 4,750
Total $ 81,838 $ 86,546