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Inventories (Details) - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Inventory Disclosure [Abstract]    
Finished goods $ 69,746 $ 76,987
Work in process 354 352
Raw materials 2,558 2,583
Packaging and supplies 2,742 3,560
Total $ 75,400 $ 83,482