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Inventories (Detail) - USD ($) $ in Millions | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | ---
Inventory [Line Items] |  |  |
Ore stockpiles |  | $ 62.5 | $ 100.7
Materials contained on heap leach pads |  | 109.0 | 109.0
Gold in-process |  | 29.7 | 38.5
Consumable stores |  | 241.3 | 273.2
Inventories |  | 442.5 | 521.4
Current assets |  | 294.4 | 373.3
Long-term assets | [1] | 148.1 | 148.1
Inventories |  | $ 442.5 | $ 521.4
[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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