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International Business Machines Corporation Alliance (Tables)
12 Months Ended
Dec. 31, 2012
Changes in Alliance Agreement Liability

Changes in the Alliance agreement liability were as follows (in thousands):

 

     Alliance
Agreement
Liability
 

Balance, December 31, 2010

   $ 22,584   

Costs related to fulfillment of technical enablement milestones

     (1,917
  

 

 

 

Balance, December 31, 2011

     20,667   

Payment of refundable portion of IBM payments

     (20,667
  

 

 

 

Balance, December 31, 2012

   $ —