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Asset Retirement Obligation (Tables)
 12 Months Ended
Dec. 31, 2013
Asset Retirement Obligation Disclosure [Abstract]  
Schedule of Asset Retirement Obligation

Following is a summary of the reserve for asset retirement obligations for the periods indicated:

 

In thousands

      2013         2012   

Balance at January 1,

    $ 8,882       $ 9,679   

Accretion

      229         458   

Payments

      (2,824 )       (1,255 ) 

Gain

      (1,255 )       –   

Balance at December 31,

    $ 5,032       $ 8,882   
Schedule of Consolidated Balance Sheets where Asset Retirement Obligations Recorded

The following table summarizes the line items in the accompanying condensed consolidated balance sheets where the asset retirement obligations are recorded:

 

     December 31  

In millions

      2013         2012   

Other current liabilities

    $ 0.9       $ 3.6   

Other long-term liabilities

      4.1         5.3   

Total

    $ 5.0       $ 8.9