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Business Acquisitions (Tables)
 3 Months Ended
Jul. 31, 2013
Business Combinations [Abstract]  
Schedule of Purchase Price Allocation to Net Assets Acquired

The purchase price allocated to net assets acquired and the residual amount allocated to goodwill during the three months ended July 31, 2013 and 2012 are as follows:

 

                               
     Three Months Ended
July  31,		  
     2013      2012  

Equipment

    $ —         $ 2,225   

Goodwill

      —           810   

Intangible assets

      —           546   

Current liabilities

      —           (81 ) 
  

 

 

     

 

 

  

Total

    $ —         $ 3,500   
Schedule of Unaudited Proforma Combined Financial Information

The following unaudited pro forma combined financial information shows the results of our operations for the three months ended July 31, 2013 and 2012 as though each of the acquisitions made in the twelve months ended April 30, 2013 had occurred as of May 1, 2012.

     Three Months Ended  
     July 31,  
     2013     2012  

Revenue

    $ 128,558      $ 121,851   

Operating income

    $ 9,737      $ 6,105   

Net loss attributable to common stockholders

    $ (191 )    $ (8,506 ) 

Basic and diluted loss per common share attributable to common stockholders

    $ (0.00 )    $ (0.32 ) 
  

 

 

    

 

 

  

Basic and diluted weighted average shares outstanding

      39,662        26,992