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Note E - Goodwill and Other Intangible Assets
12 Months Ended
Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Intangible Assets Disclosure [Text Block]

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:


   

2014

   

2013

 

Balance as of January 1

  $ 418,839     $ 410,583  

Goodwill resulting from the GHK business combination

          (101

)

Goodwill resulting from the ECA business combination

    141       8,357  

Goodwill resulting from the Mostra business combination

    24,118        

Goodwill resulting from the CityTech business combination

    19,563        

Goodwill resulting from the Olson business combination

    225,117        

Balance as of December 31

  $ 687,778     $ 418,839  

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, 2014, is 8.5 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 8.8 years. Intangible assets related to acquired developed technology are being amortized on an accelerated basis over a weighted-average period of 5.3 years. Marketing-related intangible assets are being amortized on a straight-line basis over a weighted-average period of 1.2 years. Other intangibles consisted of the following at December 31:  


   

2014

 
    Gross           Net  
    Carrying     Accumulated     Carrying  
   

Value

   

Amortization

   

Value

 

Customer-related

  $ 118,957     $ (46,703 )   $ 72,254  

Developed technology

    1,538       (494 )     1,044  

Marketing-related

    4,262       (853 )     3,409  

Total intangible assets

  $ 124,757     $ (48,050 )   $ 76,707  

   

2013

 
    Gross           Net  
    Carrying     Accumulated     Carrying  
   

Value

   

Amortization

   

Value

 

Customer-related

  $ 58,829     $ (47,301 )   $ 11,528  

Developed technology

    960       (249 )     711  

Total intangible assets

  $ 59,789     $ (47,550 )   $ 12,239  

Aggregate amortization expense for the years ended December 31, 2014, 2013, and 2012, was approximately $10.4 million, $9.5 million, and $14.1 million, respectively. The estimated future amortization expense relating to intangible assets is as follows:


Year ending December 31,

       

2015

  $ 17,180  

2016

    12,929  

2017

    11,298  

2018

    8,480  

2019

    6,162  

Thereafter

    20,658  
    $ 76,707