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Asset Retirement Obligations

3 Months Ended

12 Months Ended

Mar. 31, 2012

Dec. 31, 2011

Asset Retirement Obligations [Abstract]

5. Asset Retirement Obligations

The Company’s asset retirement obligations include the costs associated with the removal of its structures, resurfacing of the land and retirement cost, if applicable, related to the Company’s outdoor advertising portfolio. The following table reflects information related to our asset retirement obligations:


Balance at December 31, 2011	$	180,662
Additions to asset retirement obligations		155
Accretion expense		1,976
Liabilities settled		(1,338	)

Balance at March 31, 2012	$	181,455

(9) Asset Retirement Obligation

The Company’s asset retirement obligation includes the costs associated with the removal of its structures, resurfacing of the land and retirement cost, if applicable, related to the Company’s outdoor advertising portfolio. The following table reflects information related to our asset retirement obligations:


Balance at December 31, 2009	$	160,260
Revisions in cash flow estimates		7,809
Additions to asset retirement obligations		261
Accretion expense		10,751
Liabilities settled		(5,408	)

Balance at December 31, 2010		173,673
Additions to asset retirement obligations		708
Accretion expense		10,573
Liabilities settled		(4,292	)

Balance at December 31, 2011	$	180,662

- Definition

The entire disclosure for an asset retirement obligation and the associated long-lived asset. An asset retirement obligation is a legal obligation associated with the disposal or retirement from service of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

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