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Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2012
Summary of Significant Accounting Policies  
Schedule of cash paid

Cash paid (in thousands) for:

 
  Year Ended December 31,  
 
  2012   2011   2010  

Interest

  $ 1,326   $ 1,720   $ 1,215  

Income taxes for continuing operations

    13,948     1,613     9,034  

Income taxes for discontinued operations

    5     8     2  
               

Total

  $ 15,279   $ 3,341   $ 10,251