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Inventories (Details) - USD ($)
$ in Thousands
Jun. 30, 2016
Dec. 31, 2015
Inventory Disclosure [Abstract]    
Finished goods $ 82,941 $ 76,987
Work in process 163 352
Raw materials 2,775 2,583
Packaging and supplies 1,662 3,560
Total $ 87,541 $ 83,482