Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2015
Fair Value Disclosures [Abstract]  
Rollforward of the Fair Value as Determined by Level 3

The following table provides a rollforward of the fair value, as determined by Level 3 inputs, of the contingent consideration.

 

     Year ended December 31,  
         2014              2013      
     (in thousands)  

Beginning balance

   $ 99       $ —     

Additions

     —           42   

Payments

     (237      —     

Change in fair value included in earnings

     138         57   
  

 

 

    

 

 

 

Ending balance

   $ —         $ 99