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Patents Future Amortization Expense for Intangible Assets (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Finite-Lived Intangible Assets [Line Items]  
For the remainder of 2013 $ 12,636
2014 49,110
2015 46,011
2016 44,904
2017 40,789
Thereafter 75,985
Total expected amortization expense $ 269,435