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Segment Information (Tables)
 12 Months Ended
Dec. 31, 2012
Segment Information  
Schedule of internal financial reports used for corporate management purposes

 

 
   For the Year Ended December 31,  
(in thousands)
   2012   2011   2010  

Contract revenues:

                    

T&D

   $ 828,711   $ 622,000   $ 447,458  

C&I

     170,248     158,356     149,619  
               

 

   $ 998,959   $ 780,356   $ 597,077  
               

Income from operations:

                    

T&D

   $ 80,460   $ 52,053   $ 36,613  

C&I

     7,647     5,833     7,091  

General Corporate

     (32,345 )   (28,257 )   (17,199 )
               

 

   $ 55,762   $ 29,629   $ 26,505  
               
Schedule of identifiable assets for each segment

 

(in thousands)
   2012   2011  

T&D

   $ 223,719   $ 182,016  

C&I

     63,554     49,492  

Other

     179,075     181,060  
           

 

   $ 466,348   $ 412,568  
           
Schedule of an allocation of total depreciation, including depreciation of shared construction equipment, and amortization

 

 
   For the Year Ended December 31,  
(in thousands)
   2012   2011   2010  

Depreciation and amortization

                    

T&D

   $ 23,758   $ 18,426   $ 14,820  

C&I

     1,398     1,085     1,470  
               

 

   $ 25,156   $ 19,511   $ 16,290