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Debt Obligations - Schedule of Debt Obligations (Parenthetical) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Debt Instrument [Line Items]    
Long-term debt $ 771,852 $ 415,850
Quarterly payments of principal and interest term 7 years  
Interest Rate Swap    
Debt Instrument [Line Items]    
Effective interest rate of principal borrowings 4.00%  
Long-term debt $ 270,000