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Computer Software, net
12 Months Ended
Dec. 31, 2015
Computer Software, net
Note 9 Computer Software, net

Computer software as of December 31, 2015 and 2014 is summarized as follows:

 

 

 

(in thousands)    2015      2014  

Licensed computer software

   $ 513,443         435,701   

Software development costs

     404,238         376,026   

Acquisition technology intangibles

     167,971         167,687   
  

 

 

    

 

 

 

Total computer software

     1,085,652         979,414   
  

 

 

    

 

 

 

Less accumulated amortization:

     

Licensed computer software

     282,563         243,866   

Software development costs

     287,863         275,512   

Acquisition technology intangibles

     110,156         93,888   
  

 

 

    

 

 

 

Total accumulated amortization

     680,582         613,266   
  

 

 

    

 

 

 

Computer software, net

   $ 405,070         366,148   
  

 

 

    

 

 

 

 

 

The Company held the following computer software under capital lease as of December 31, 2015 and 2014:

 

 

 

(in thousands)    2015     2014  

Licensed computer software

   $ 18,206        17,625   

Less accumulated amortization

     (8,175     (4,816
  

 

 

   

 

 

 

Licensed computer software, net

   $ 10,031        12,809   
  

 

 

   

 

 

 

 

 

 

Amortization expense includes amounts for computer software acquired under capital lease. The Company had the following amortization expense related to computer software for the years ended December 31, 2015, 2014 and 2013:

 

 

 

(in thousands)    2015      2014      2013  

Amortization expense related to:

        

Licensed computer software

   $ 41,823         36,775         33,511   

Software development costs

     22,740         25,248         21,430   

Acquisition technology intangibles

     16,734         19,683         15,855   

 

 

The weighted average useful life for each component of computer software, and in total, as of December 31, 2015, is as follows:

 

 

 

     Weighted
Average
Amortization
Period (Yrs)
 

Licensed computer software

     5.4   

Software development costs

     6.1   

Acquisition technology intangibles

     6.8   
  

 

 

 

Total

     5.9   
  

 

 

 

 

 

Estimated future amortization expense of licensed computer software, software development costs and acquisition technology intangibles as of December 31, 2015 for the next five years is:

 

 

 

(in thousands)    Licensed
Computer
Software
     Software
Development
Costs
     Acquisition
Technology
Intangibles
 

2016

   $ 36,207         27,312         15,352   

2017

     31,034         21,608         13,868   

2018

     25,345         16,041         11,393   

2019

     13,617         9,916         11,393   

2020

     8,899         7,343         5,734