Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Other Intangible Assets (Details)

 v2.3.0.11
Goodwill and Other Intangible Assets (Details) (USD $)
In Thousands
6 Months Ended
Jun. 30, 2011
Dec. 31, 2010
Summary of changes in Quanta's goodwill    
Goodwill, Gross $ 1,627,135 $ 1,624,419
Goodwill, Impaired, Accumulated Impairment Losses (63,264) (63,264)
Goodwill, Translation Adjustments 2,766  
Goodwill, Purchase Accounting Adjustments (50)  
Goodwill 1,563,871 1,561,155
Electric Power Division [Member]
   
Summary of changes in Quanta's goodwill    
Goodwill, Gross 744,042 741,276
Goodwill, Impaired, Accumulated Impairment Losses 0 0
Goodwill, Translation Adjustments 2,766  
Goodwill 744,042 741,276
Natural Gas and Pipeline Division [Member]
   
Summary of changes in Quanta's goodwill    
Goodwill, Gross 320,919 337,911
Goodwill, Impaired, Accumulated Impairment Losses 0 0
Operating unit reorganization (16,942)  
Goodwill, Purchase Accounting Adjustments (50)  
Goodwill 320,919 337,911
Telecommunications Division [Member]
   
Summary of changes in Quanta's goodwill    
Goodwill, Gross 562,174 545,232
Goodwill, Impaired, Accumulated Impairment Losses (63,264) (63,264)
Operating unit reorganization 16,942  
Goodwill $ 498,910 $ 481,968