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Discontinued Operations (Tables)
12 Months Ended
Dec. 31, 2013
Discontinued Operations  
Schedule of revenue and pre-tax income (loss) related to discontinued operations

Revenue and pre-tax income (loss) related to discontinued operations are as follows (in thousands):

 
  Year Ended December 31,  
 
  2013   2012   2011  

Revenue

  $ 49   $ 4,668   $ 23,366  

Pre-tax income (loss)

  $ (195 ) $ 567   $ (6,727 )