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Asset Retirement Obligation (Tables)

3 Months Ended

Mar. 31, 2013

Asset Retirement Obligation [Abstract]

Schedule of asset retirement obligation

In thousands		2013				2012
Balance at January 1,		$	8,882			$	9,679
Accretion			82				122
Payments			(662	)			(207	)
Balance at March 31,		$	8,302			$	9,594

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- Definition

Tabular disclosure of the carrying amount of a liability for asset retirement obligations.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 410

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849

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