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Restructuring (Tables)
6 Months Ended
Jun. 30, 2012
Restructuring [Abstract]  
Changes in the liability and the balance related restructuring plan

Changes in the liability and the balance related to the December 2011 restructuring plan are as follows:

 

         
    Six Months Ending
June 30, 2012
 
    (in thousands)  

Balance at January 1, 2012

  $ 828  

Restructuring charge for severance

    —    

Severance payments

    (86
   

 

 

 

Balance at June 30, 2012

  $ 742