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INVENTORIES (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Inventory Disclosure [Abstract]    
Raw materials $ 21,435us-gaap_InventoryRawMaterialsNetOfReserves $ 21,127us-gaap_InventoryRawMaterialsNetOfReserves
Work-in-process 16,066us-gaap_InventoryWorkInProcessNetOfReserves 14,643us-gaap_InventoryWorkInProcessNetOfReserves
Finished goods 27,508us-gaap_InventoryFinishedGoodsNetOfReserves 28,255us-gaap_InventoryFinishedGoodsNetOfReserves
Total $ 65,009us-gaap_InventoryNet $ 64,025us-gaap_InventoryNet