Inventories (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Inventory Disclosure [Abstract]
Finished goods	$ 71,499	$ 76,987
Work in process	455	352
Raw materials	2,654	2,583
Packaging and supplies	1,608	3,560
Total	$ 76,216	$ 83,482