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Investments (Tables)
12 Months Ended
Dec. 31, 2014
Fair Value Disclosures [Abstract]  
Investments from Continuing Operations

Investments from our continuing operations consist of the following as of December 31, 2014 and 2013 (dollars in thousands):

 

     December 31, 2014  
            Gross Unrealized        
     Cost      Gain      (Loss)     Fair Value  

Short-term investments (available for sale):

          

Municipal bonds

   $ 6,880       $ 1       $ (56   $ 6,825   

Non-governmental debt securities

     98,400         1         (271     98,130   

Treasury and federal agencies

     17,928         6         (31     17,903   
  

 

 

    

 

 

    

 

 

   

 

 

 

Total short-term investments

     123,208         8         (358     122,858   
  

 

 

    

 

 

    

 

 

   

 

 

 

Long-term investments (available for sale):

          

Municipal bond

     7,850         —           (476     7,374   
  

 

 

    

 

 

    

 

 

   

 

 

 

Total investments (available for sale)

   $ 131,058       $ 8       $ (834   $ 130,232   
  

 

 

    

 

 

    

 

 

   

 

 

 
     December 31, 2013  
            Gross Unrealized        
     Cost      Gain      (Loss)     Fair Value  

Short-term investments (available for sale):

          

U.S. Treasury bills

   $ 31,591       $ 1       $ —        $ 31,592   

Long-term investments (available for sale):

          

Municipal bond

     7,850         —           (476     7,374   
  

 

 

    

 

 

    

 

 

   

 

 

 

Total investments (available for sale)

   $ 39,441       $ 1       $ (476   $ 38,966   
  

 

 

    

 

 

    

 

 

   

 

 

Schedule of Available-for-Sale Investments

A schedule of available-for-sale investments segregated by their original stated terms to maturity as of December 31, 2014 and 2013, are as follows (dollars in thousands):

 

     Less than
one year
     One to five
years
     Five to ten
years
     Greater than
ten years
     Total  

Original stated term to maturity of available-for-sale-investments as of December 31, 2014

   $ 77,177       $ 44,182       $ 211       $ 8,662       $ 130,232   

Original stated term to maturity of available-for-sale-investments as of December 31, 2013

   $ 31,592       $ —         $ —         $ 7,374       $ 38,966
Investments Measured at Fair Value on Recurring Basis

Investments measured at fair value on a recurring basis subject to the disclosure requirements of FASB ASC Topic 820 – Fair Value Measurements at December 31, 2014 and 2013 were as follows (dollars in thousands):

 

     As of December 31, 2014  
     Level 1      Level 2      Level 3      Total  

Municipal bonds

   $ —         $ 6,825       $ 7,374       $ 14,199   

Non-governmental debt securities

     —           98,130         —           98,130   

Treasury and federal agencies

     —           17,903         —           17,903   
  

 

 

    

 

 

    

 

 

    

 

 

 

Totals

   $ —         $ 122,858       $ 7,374       $ 130,232   
  

 

 

    

 

 

    

 

 

    

 

 

 
     As of December 31, 2013  
     Level 1      Level 2      Level 3      Total  

U.S. Treasury bills

   $ 31,592       $ —         $ —         $ 31,592   

Municipal bond

     —           —           7,374         7,374   
  

 

 

    

 

 

    

 

 

    

 

 

 

Totals

   $ 31,592       $ —         $ 7,374       $ 38,966   
  

 

 

    

 

 

    

 

 

    

 

 

Assets Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs (Level 3)

The following table presents a rollforward of our assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3) as defined in FASB ASC Topic 820 for the year to date ended December 31, 2014 (dollars in thousands):

 

Balance at December 31, 2013

   $ 7,374   

Unrealized loss

     —     
  

 

 

 

Balance at December 31, 2014

   $ 7,374