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Fair Value of Financial Instruments (Tables)
 12 Months Ended
Dec. 31, 2015
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:

 

    2015     2014  

In thousands

    
 		 Carrying
Value		   
  		    
 		 Fair
Value		  
  		    
 		 Carrying
Value		   
  		    
 		 Fair
Value		   
  

Variable rate debt

   $ 58,792      $ 58,792      $ 90,555      $ 90,555   

Fixed-rate bonds

     250,000        250,938        250,000        255,470   

2.40% Term loan

     10,109        10,535        12,155        12,626   

2.05% Term loan

     42,130        42,886        51,902        53,106   

1.55% Term loan

     2,839        2,524        –        –   

Total

   $ 363,870      $ 365,675      $ 404,612      $ 411,757