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Inventories (Detail) (USD $) In Millions, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013
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Inventory [Line Items] |  |  |  |
Ore stockpiles | $ 100.7 us-gaap_InventoryRawMaterialsNetOfReserves |  | $ 88.0 us-gaap_InventoryRawMaterialsNetOfReserves |
Materials contained on heap leach pads | 109.0 us-gaap_InventoryOreStockpilesOnLeachPads |  | 109.0 us-gaap_InventoryOreStockpilesOnLeachPads |
Gold in-process | 38.5 us-gaap_InventoryWorkInProcessNetOfReserves |  | 43.1 us-gaap_InventoryWorkInProcessNetOfReserves |
Consumable stores | 273.2 us-gaap_InventorySuppliesNetOfReserves |  | 269.9 us-gaap_InventorySuppliesNetOfReserves |
Other |  |  | 1.7 us-gaap_OtherInventoryNetOfReserves |
Inventories | 521.4 gfi_InventoryCurrentAndNoncurrent |  | 511.7 gfi_InventoryCurrentAndNoncurrent |
Current assets | 373.3 us-gaap_InventoryNet |  | 402.7 us-gaap_InventoryNet |
Long-term assets | 148.1 us-gaap_InventoryNoncurrent | [1] | 109.0 us-gaap_InventoryNoncurrent | [1]
Inventories | $ 521.4 gfi_InventoryCurrentAndNoncurrent |  | $ 511.7 gfi_InventoryCurrentAndNoncurrent |
[1] | This amount relates to materials contained on heap leach pads and ore stockpiles that will only be processed at the end of life of mine.

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- Definition Amount before last-in first-out (LIFO) and valuation reserves of ore stockpile material contained on a leach pad, for example, but not limited to, copper or gold ore. + References No definition available. + Details
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