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Goodwill (Details)
$ in Thousands
6 Months Ended
Jun. 30, 2016
USD ($)
Goodwill [Roll Forward]  
Goodwill $ 19,978
Goodwill from business acquisition 145,984
Foreign currency translation adjustments (5,840)
Goodwill 160,122
Operating Segments | Inventus Solutions Inc., Discovery Services  
Goodwill [Roll Forward]  
Goodwill 0
Goodwill from business acquisition 145,984
Foreign currency translation adjustments (5,840)
Goodwill 140,144
Operating Segments | Legacy RPX, Patent Risk Management  
Goodwill [Roll Forward]  
Goodwill 19,978
Goodwill from business acquisition 0
Foreign currency translation adjustments 0
Goodwill $ 19,978