Annual report pursuant to Section 13 and 15(d)

Intangible Assets, net - Amortization Expense (Details)

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Intangible Assets, net - Amortization Expense (Details) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]      
2014 $ 35,888,000    
2015 23,889,000    
2016 21,357,000    
2017 19,280,000    
2018 15,326,000    
Thereafter 27,236,000    
Net Carrying Value 142,977,000    
Amortization of intangible assets $ 17,300,000 $ 0 $ 0