Other Current Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Other Liabilities Disclosure [Abstract]
Accrued capital expenditures	$ 21,750	$ 40,722
Accrued general and administrative expenditures	9,703	9,753
Accrued ad valorem taxes	7,027	8,741
Other	22,507	36,564
Total Other current liabilities	$ 60,987	$ 95,780