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Acquired Intangible Assets (Calculation Of Estimated Future Amortization Expense) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Jun. 30, 2013
Acquired Intangible Assets [Abstract]    
2014 (six months ended June 30) $ 47,644  
2015 88,941  
2016 64,013  
2017 46,815  
2018 and beyond 76,772  
Net $ 324,185 $ 363,615