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Divestiture Transactions and Discontinued Operations (Tables)
6 Months Ended
Oct. 31, 2014
Discontinued Operations and Disposal Groups [Abstract]  
Schedule of Revenues and (Loss) Income Before Income Taxes Attributable to Discontinued Operations

Revenues and (loss) income before income taxes attributable to discontinued operations for the three and six months ended October 31, 2014 and 2013, respectively, are as follows:

 

     Three Months Ended
October 31,
    Six Months Ended
October 31,
 
     2014      2013     2014      2013  

Revenues

   $ —         $ 5      $ —         $ 3,316   

(Loss) income before income taxes

   $ —         $ (45   $ —         $ 284