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Environmental Compliance (Tables)

12 Months Ended

Dec. 31, 2011

Environmental Compliance

Schedule of Change in Asset Retirement Obligation [Table Text Block]

		ARO Liability				ARO Asset
Balance at December 31, 2008		$	13.7			$	13.0
Additional retirement obligation			6.3				6.3
Accretion			1.3
Balance at December 31, 2009		$	21.3			$	19.3
Additional retirement obligation			-				-
Accretion			1.3
Balance at December 31, 2010		$	22.6			$	19.3
Additional retirement obligation			-				-
Accretion			-
Balance at December 31, 2011		$	22.6			$	19.3

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- Definition

Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Topic 410

-SubTopic 30

-Publisher FASB

-Number

-Article

-Subparagraph

-Name Accounting Standards Codification

-Paragraph 5

-Section 50

-URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13201-110859

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