Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Schedule of Long Term Debt Maturity (Details)

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Long-Term Debt - Schedule of Long Term Debt Maturity (Details) - USD ($)
$ in Thousands
Sep. 30, 2017
Dec. 31, 2016
Debt Disclosure [Abstract]    
Remainder of 2017 $ 2,750  
2018 11,000  
2019 11,000  
2020 608,000  
2021 91,400  
2022 1,042,250  
Thereafter 0  
Total principal payments 1,766,400  
Less:    
Unamortized deferred debt costs and discounts 35,207  
Total debt on condensed consolidated balance sheet $ 1,731,193 $ 1,698,778