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Patents Future Amortization Expense (Details) (USD $)
Dec. 31, 2014
Patents [Abstract]  
2015 $ 52,019,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
2016 49,332,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
2017 48,245,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
2018 44,117,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
2019 38,679,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
After Year Five $ 54,244,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive