Property, Plant, and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Property, Plant and Equipment [Line Items]
Future discounted net cash flows discounted				10.00%
Capitalized costs of unproved properties included in amortization, cumulative		$ 226,500
Loss on abandonment of assets	$ 0		$ 0	$ 17,554	$ 0
Oil and Natural Gas [Member]
Property, Plant and Equipment [Line Items]
Impairment of Oil and Gas Properties	$ 109,300	267,800			$ 0
Loss on abandonment of assets				$ 17,600
Mid-Stream [Member]
Property, Plant and Equipment [Line Items]
Impairment of Long-Lived Assets Held-for-use		64,000
BOSS drilling rigs [Member] | Drilling Equipment [Member]
Property, Plant and Equipment [Line Items]
Carrying value of asset group		242,500
SCR drilling rigs [Member] | Drilling Equipment [Member]
Property, Plant and Equipment [Line Items]
Impairment of Long-Lived Assets Held-for-use		407,100
Other drilling equipment [Member] | Drilling Equipment [Member]
Property, Plant and Equipment [Line Items]
Impairment of Long-Lived Assets Held-for-use		$ 3,000