Note 17. Sale of the Velardea Mill (Detail) (USD $) In Millions, except Share data, unless otherwise specified	2 Months Ended	3 Months Ended
	Mar. 09, 2009	Mar. 31, 2009
Proceeds from Sales of Business, Affiliate and Productive Assets	$ 8
Shares Received From Sale Of Business And Productive Assets (in Shares)	750,000
Value Of Shares Received From Sale Of Business And Productive Assets	0.3
Property, Plant and Equipment, Disposals	3
Gain (Loss) on Disposition of Assets		6.2
Elimination Of Asset Retirement Obligation [Member]
Gain (Loss) on Disposition of Assets		$ 1.0