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Business
3 Months Ended
Sep. 30, 2011
Business [Abstract] 
Business
2. Business
We are one of the largest providers of energy solutions for investor-owned, municipal and co-operative electric utilities in the United States. Since our founding in 1945, we have evolved from a specialty non-unionized contractor focused on the electric distribution sector in the southeastern United States to a leading turnkey energy solutions provider throughout the United States with diverse capabilities servicing over 200 investor-owned, municipal and co-operative electric utilities. Our comprehensive suite of energy solutions now includes siting, permitting, engineering, designing, planning, constructing, maintaining and repairing power delivery systems, including renewable energy projects. We currently operate our business as one reportable segment.
We currently are pursuing international opportunities, both individually and through strategic partnerships. We believe that our reputation and experience combined with our broad range of services allows us to opportunistically bid on attractive international projects. For example, in August 2010, we won our first international engineering, procurement, and construction (“EPC”) contract of approximately $18,000 to construct 500 miles of distribution line in Tanzania over what we believe will be the next 1.5 years. Planning and siting for this project are substantially complete, engineering and design work is under way, and construction began in July 2011. This project is supported by United States government commitments and guarantees. We believe there will be other large and financially attractive projects to pursue in international markets over the next few years as developing regions including Africa install or develop their electric infrastructure.
We monitor revenue by two categories of services: core and storm restoration. We use this breakdown because core services represent ongoing service revenues, most of which are generated by our customers’ recurring maintenance needs, and storm restoration revenues represent additional revenue opportunities that depend on severe weather conditions.
The table below sets forth our revenues by category of service for the periods indicated:
                                 
    Three Months Ended  
    September 30,  
    2011     2010  
Core services
  $ 136,999       79.7 %   $ 123,778       96.1 %
Storm restoration services
    34,792       20.3 %     4,981       3.9 %
 
                       
Total
  $ 171,791       100.0 %   $ 128,759       100.0 %