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Fair Value of Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2014
Fair Value Disclosures [Abstract]  
Carrying Value and Fair Value of Long-Term Debt

The following table sets forth the carrying value and fair value of long-term debt as of December 31:

 

    December 31, 2014     December 31, 2013  

In thousands

   
 
Carrying
Value
  
  
   
 
Fair
Value
 
  
   
 
Carrying
Value
  
  
   
 
Fair
Value
  
  

Variable rate debt

  $ 90,555      $ 90,555      $ 133,540      $ 133,540   

Fixed-rate bonds

    250,000        255,470        250,000        254,533   

2.05% Term loan

    51,902        53,106        58,785        57,952   

2.40% Term loan

    12,155        12,626                 

Total

  $ 404,612      $ 411,757      $ 442,325      $ 446,025