Nominal or face amount used to calculate payments on the derivative asset.

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-Publisher FASB

-Name Accounting Standards Codification

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Fair value of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, elected not to be offset against an obligation to return collateral under a master netting arrangement.

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The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period.

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Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

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Fair Value of Derivative Instruments (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Designated as Hedging Instrument
Derivative [Line Items]
Asset Derivatives, Fair Value	$ 0.2		$ 0.2		$ 0.3
Amount of Gains (Loss) Recognized in OCI	(0.2)	0.4	0	(0.6)
Designated as Hedging Instrument \| Diesel Fuel Contracts \| Other Comprehensive Income (Loss)
Derivative [Line Items]
Amount of Gains (Loss) Recognized in OCI	0.2	1.1	0	0.4
Designated as Hedging Instrument \| Diesel Fuel Contracts \| Other Current Assets
Derivative [Line Items]
Asset Derivatives, Notional Amount	4.5		4.5
Asset Derivatives, Fair Value	0.2		0.2		0.2
Designated as Hedging Instrument \| Foreign Exchange Contract \| Other Comprehensive Income (Loss)
Derivative [Line Items]
Amount of Gains (Loss) Recognized in OCI	(0.4)	(0.7)	0	(1.0)
Designated as Hedging Instrument \| Foreign Exchange Contract \| Other Current Assets
Derivative [Line Items]
Asset Derivatives, Notional Amount	21.2		21.2
Asset Derivatives, Fair Value	0		0		0.1
Not Designated as Hedging Instrument
Derivative [Line Items]
Asset Derivatives, Fair Value	0.9		0.9		0.9
Amount of Gain (Loss) Recognized in Income	(0.8)	1.0	2.5	5.0
Not Designated as Hedging Instrument \| Foreign Exchange Contract \| Selling, General And Administrative Expenses
Derivative [Line Items]
Amount of Gain (Loss) Recognized in Income	(0.1)	1.7	(0.1)	1.7
Not Designated as Hedging Instrument \| Foreign Exchange Contract \| Other Current Assets
Derivative [Line Items]
Asset Derivatives, Notional Amount	3.0		3.0
Asset Derivatives, Fair Value	0.1		0.1		0
Not Designated as Hedging Instrument \| Equity Derivatives \| Selling, General And Administrative Expenses
Derivative [Line Items]
Amount of Gain (Loss) Recognized in Income	(0.7)	(0.7)	2.6	3.3
Not Designated as Hedging Instrument \| Equity Derivatives \| Other Current Assets
Derivative [Line Items]
Asset Derivatives, Notional Amount	24.7		24.7
Asset Derivatives, Fair Value	$ 0.8		$ 0.8		$ 0.9