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Acquisition (Tables)
12 Months Ended
Dec. 31, 2013
Text Block [Abstract]  
Estimated Fair Values of Assets Acquired at Acquisition Date
The purchase is being treated as a business combination for accounting purposes; the following table summarizes the estimated fair values of the assets acquired at the acquisition date (in thousands):
 
February 1,
2012
Computer equipment
$
280

Perpetual license
3,250

Customer relationships
150

Total identifiable assets acquired
$
3,680