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FAIR VALUE MEASUREMENTS (Tables)
 3 Months Ended
Mar. 31, 2014
FAIR VALUE MEASUREMENTS  
Schedule of assets and liabilities measured at fair value on a recurring basis

 

 

 
   March 31, 2014  
Description
  (Level 1)   (Level 2)   (Level 3)   Total  
 
   (in thousands)
  

Assets

                          

Cash equivalents

   $ 20,676   $ —   $ —   $ 20,676  
                   
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Total assets

   $ 20,676   $ —   $ —   $ 20,676  
                   
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
                   

Liabilities

                          

Acquisition-related contingent considerations

   $ —   $ —   $ 597   $ 597  
                   
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Total liabilities

   $ —   $ —   $ 597   $ 597  
                   
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
                   

 

 
   December 31, 2013  
Description
  (Level 1)   (Level 2)   (Level 3)   Total  
 
   (in thousands)
  

Assets

                          

Cash equivalents

   $ 33,524   $ —   $ —   $ 33,524  
                   
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Total assets

   $ 33,524   $ —   $ —   $ 33,524  
                   
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
                   

Liabilities

                          

Acquisition-related contingent considerations

   $ —   $ —   $ 586   $ 586  
                   
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Total liabilities

   $ —   $ —   $ 586   $ 586  
                   
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
                   
Schedule of change in acquisition-related contingent consideration liabilities

 

 

Balance as of December 31, 2013

   $ 586  

Amortization of present value discount(1)

     18  

Fair value adjustment for change in consideration expected to be paid(2)

     (7 )

Settlements

     —  
       
​ ​ ​ ​ ​

Balance as of March 31, 2014

   $ 597  
       
​ ​ ​ ​ ​
​ ​ ​ ​ ​
       
(1)
Changes in present value are included as a component of interest expense in the consolidated statement of operations.

(2)
Fair value adjustments for changes in earn-out estimates are recorded to indefinite-lived intangibles in the consolidated balance sheet.