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Asset Retirement Obligations (Tables)

12 Months Ended

Dec. 31, 2011

Asset Retirement Obligations [Abstract]

Components Of Changes In Asset Retirement Obligation Liability

		2011				2010
		(In thousands)
Asset retirement obligation, January 1		$	4,884			$	4,521
Accretion expense			211				363
Payments			—				—
Asset retirement obligation, December 31		$	5,095			$	4,884

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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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