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Asset Retirement Obligation - Narrative (Details) | 6 Months Ended
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Jun. 30, 2015
Asset Retirement Obligation Disclosure [Abstract] |
Asset Retirement Obligation Expected Term | 50 years
Asset Retirement Obligations, Description | The obligation is calculated based on the assumption that all of our advertising structures will be removed within the next 50 years.

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- Definition Asset Retirement Obligation Expected Term + References No definition available. + Details
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- Definition A general description of the asset retirement obligations and the associated long-lived assets. Description may include the terms of the legal restriction. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 + Details
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