INVENTORIES (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Inventory Disclosure [Abstract]    
Finished product ready for sale $ 479,937 $ 501,027
Work-in-process, bulk product and raw materials 67,782 60,911
Packaging supplies 7,216 7,194
Total inventory $ 554,935 $ 569,132