v3.2.0.727
Significant Agreements Significant Agreements (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]        
Patent licensing royalties $ 116,622 $ 192,088 $ 225,595 $ 246,362