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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