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Contingencies - Additional Information (Detail) In Millions, unless otherwise specified	0 Months Ended		1 Months Ended	3 Months Ended		0 Months Ended
	Nov. 22, 2011 USD ($)	Nov. 22, 2011 BRL	Jun. 30, 2010 USD ($)	Mar. 31, 2013 BRL	May 08, 2012 USD ($)	Nov. 22, 2011 Court-imposed interest, fees or inflation adjustments Maximum USD ($)
Loss Contingencies [Line Items]
Damages asserted by BK				20.8
Total ordered damages granted to Bk	13.2	26.7				54.0
Amount of remediation plan for the RID portion of the Superfund Site approved by ADEQ			100
Walker acquisition, Purchase price					$ 375

X

- Definition

Amount of cash paid to acquire the entity.

+ References

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Amount of damages awarded to the plaintiff in the legal matter.

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