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Other Significant Noncash Transaction, Amount of Gold Transferred as Repayment

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The effect of liquidating LIFO (last in first out) inventory layers on income.

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Amount of difference between inventory at lower of LIFO cost or market and inventory at lower of other inventory accounting method cost or market, for example, but not limited to, FIFO or average cost.

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The amount of LIFO (last in first out) inventory present at the reporting date when inventory is also valued using different valuation methods.

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Sum of the carrying amounts at the balance sheet date of short-term borrowings not otherwise specified in the taxonomy having initial terms less than one year or the normal operating cycle, if longer.

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Inventories (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended		3 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Jun. 27, 2014 oz
Inventories (Textual) [Abstract]
Gross inventories under LIFO method	$ 183.9us-gaap_LIFOInventoryAmount	$ 175.6us-gaap_LIFOInventoryAmount
LIFO reserve	53.7us-gaap_InventoryLIFOReserve	58.2us-gaap_InventoryLIFOReserve
Reduction in cost of sales by the liquidation of LIFO inventory layers	0.1	1.0
Prepaid Assets [Member]
Inventories (Textual) [Abstract]
Reclassification from prepaid assets to inventory		(19.4)
Inventories [Member]
Inventories (Textual) [Abstract]
Reclassification from prepaid assets to inventory		19.4
Precious Metal-Denominated Loan [Member]
Inventories (Textual) [Abstract]
Precious metal-denominated loan		$ 28.7
Amount of gold transfered (in ounces)			23,781