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Long-term Debt Interest Expense (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Debt Instrument [Line Items]        
Amortization of debt discounts $ 340 $ 0 $ 729 $ 0
Total 5,905 0 13,012 0
Senior Loans [Member]        
Debt Instrument [Line Items]        
Interest expense, term loans 4,639 0 10,260 0
Junior Loans [Member]        
Debt Instrument [Line Items]        
Interest expense, term loans $ 926 $ 0 $ 2,023 $ 0