Quarterly report pursuant to Section 13 or 15(d)

Accrued Liabilities (Details)

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Accrued Liabilities (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Accrued Liabilities    
Capital expenditures $ 27,864  
Operating expenses 21,717  
Interest expense 25,735  
Other 6,761 $ 407
Total accrued liabilities $ 82,077 $ 407