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Patents Future Amortization Expense for Intangible Assets (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Finite-Lived Intangible Assets [Line Items]  
For the remainder of 2013 $ 25,249
2014 49,036
2015 45,991
2016 44,886
2017 41,014
Thereafter 76,348
Total expected amortization expense $ 282,524