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Restructuring Charges (Tables)
3 Months Ended
Mar. 31, 2013
Restructuring Charges [Abstract]  
Roll-forward of the accrued restructuring expense
         
(Dollars in thousands)   Severance  

Accrued at January 1, 2013

  $ —    

Restructuring charge

    437  

Payments

    (206
   

 

 

 

Accrued at March 31, 2013

  $ 231