XML 20 R55.htm IDEA: XBRL DOCUMENT v2.4.1.9
Inventories (Schedule Of Inventories) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Inventories [Abstract]    
Finished goods $ 34,639us-gaap_InventoryFinishedGoods $ 56,664us-gaap_InventoryFinishedGoods
Grain held for sale 23,027gpre_InventoryGrainHeldForSale 23,782gpre_InventoryGrainHeldForSale
Raw materials 78,095us-gaap_InventoryRawMaterials 51,726us-gaap_InventoryRawMaterials
Work-in-process 100,221us-gaap_InventoryWorkInProcess 11,506us-gaap_InventoryWorkInProcess
Supplies and parts 18,985us-gaap_OtherInventorySupplies 14,650us-gaap_OtherInventorySupplies
Inventories $ 254,967gpre_InventoriesCarryingAmount $ 158,328gpre_InventoriesCarryingAmount