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Goodwill and Other Intangible Assets
12 Months Ended
Dec. 31, 2012
Goodwill and Other Intangible Assets [Abstract]  
GOODWILL AND OTHER INTANGIBLE ASSETS

NOTE E—GOODWILL AND OTHER INTANGIBLE ASSETS

Goodwill

The changes in the carrying amount of goodwill for the fiscal years ended December 31 were as follows:

 

                 
    2012     2011  

Balance as of January 1

  $ 401,134     $ 323,467  

Goodwill resulting from the Marbek business combination

    —         2,381  

Goodwill resulting from the AeroStrategy business combination

    —         1,026  

Goodwill resulting from the Ironworks business combination

    119       74,260  

Goodwill resulting from the GHK business combination

    7,857       —    

Goodwill resulting from the Symbiotic Engineering business combination

    1,473       —    
   

 

 

   

 

 

 

Balance as of December 31

  $ 410,583     $ 401,134  
   

 

 

   

 

 

 

Other Intangible Assets

Intangible assets are primarily amortized over periods ranging from approximately 1 to 10 years. The weighted-average period of amortization for all intangible assets as of December 31, 2012, is 7.2 years. The customer-related intangible assets related to the business combinations, which consist of customer contracts, backlog, and non-contractual customer relationships, are being amortized based on estimated cash flows and respective estimated economic benefit of the assets. The weighted-average period of amortization of the customer-related intangibles is 7.4 years. Intangible assets related to acquired developed technology are being amortized on an accelerated basis over a weighted-average period of 5.6 years. Marketing trade names obtained in connection with business combinations are being amortized on a straight-line basis over a weighted-average period of 1.1 years. Other intangibles consisted of the following at December 31:

 

                 
    2012     2011  

Customer-related intangibles

  $ 58,204     $ 57,933  

Developed technology

    3,237       2,352  

Marketing trade name

    814       605  
   

 

 

   

 

 

 
      62,255       60,890  

Less: accumulated amortization

    (41,239     (27,150
   

 

 

   

 

 

 
    $ 21,016     $ 33,740  
   

 

 

   

 

 

 

Aggregate amortization expense for the years ended December 31, 2012, 2011, and 2010, was approximately $14.1 million, $9.6 million, and $12.3 million, respectively. The estimated future amortization expense relating to intangible assets is as follows:

 

         

Year ending December 31,

     

2013

  $ 9,464  

2014

    5,400  

2015

    2,785  

2016

    1,643  

2017

    995  

Thereafter

    729  
   

 

 

 
    $ 21,016  
   

 

 

 

Capitalized Software

Capitalized software development costs of $1.5 million are included in other assets for the year ended December 31, 2012 and 2011. Amortization expense for each of 2012 and 2011 was $0.3 million. There was no amortization expense in 2010. These costs are for enhancements and upgrades to software used in project management services.