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Income Taxes (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2015
Dec. 31, 2014
Income Taxes [Line Items]    
Income tax liability $ 5,699 $ 0
Prepaid income tax expense 6,488 $ 0
Net Operating Losses Related to IP Assignment    
Income Taxes [Line Items]    
Increase (decrease) in valuation allowance $ (40,900)