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Asset Retirement Obligation (Tables)
 12 Months Ended
Dec. 31, 2014
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

      2014         2013   

Balance at January 1,

    $ 5,032       $ 8,882   

Accretion

      145         229   

Payments

      (827 )       (2,824 ) 

Gain

      (236 )       (1,255 ) 

Balance at December 31,

    $ 4,114       $ 5,032   
Schedule of Consolidated Balance Sheets where Asset Retirement Obligations Recorded

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

 

     December 31  

In thousands

      2014         2013   

Other current liabilities

    $ 2,855       $ 915   

Other long-term liabilities

      1,259         4,117   

Total

    $ 4,114       $ 5,032