Derivative Financial Instruments - Schedule of Open Crude Oil and Natural Gas Derivative Contracts (Details)	1 Months Ended	9 Months Ended
	Nov. 07, 2018 MMBTU $ / MMBTU $ / bbl bbl	Sep. 30, 2018 MMBTU $ / MMBTU $ / bbl bbl
Q4 2018 | Natural Gas
Derivative [Line Items]
Natural gas volume (MMBtu) | MMBTU		610,000
Weighted Average Price ($/Bbl / $/MMBtu) | $ / MMBTU		2.95
Q4 2018 | Crude Oil
Derivative [Line Items]
Crude oil volume (Bbl) | bbl		413,700
Weighted Average Price ($/Bbl / $/MMBtu) | $ / bbl		54.05
Q1 - Q4 2019 | Crude Oil
Derivative [Line Items]
Crude oil volume (Bbl) | bbl		1,624,100
Weighted Average Price ($/Bbl / $/MMBtu) | $ / bbl		58.95
Q1 - Q4 2020 | Crude Oil
Derivative [Line Items]
Crude oil volume (Bbl) | bbl		732,000
Weighted Average Price ($/Bbl / $/MMBtu) | $ / bbl		63.08
Q4 2018 | Crude Oil
Derivative [Line Items]
Crude oil volume (Bbl) | bbl		243,800
Q4 2018 | Crude Oil
Derivative [Line Items]
Crude oil volume (Bbl) | bbl		92,000
Weighted Average Price ($/Bbl / $/MMBtu) | $ / bbl		6.35
Q1 - Q4 2019 | Crude Oil
Derivative [Line Items]
Crude oil volume (Bbl) | bbl		1,277,500
Q1 - Q4 2019 | Crude Oil
Derivative [Line Items]
Crude oil volume (Bbl) | bbl		365,000
Weighted Average Price ($/Bbl / $/MMBtu) | $ / bbl		4.50
Q1 - Q4 2020 | Crude Oil
Derivative [Line Items]
Crude oil volume (Bbl) | bbl		732,000
Short | Q4 2018 | Crude Oil
Derivative [Line Items]
Weighted Average Price ($/Bbl / $/MMBtu) | $ / bbl		(1.90)
Short | Q1 - Q4 2019 | Crude Oil
Derivative [Line Items]
Weighted Average Price ($/Bbl / $/MMBtu) | $ / bbl		(6.39)
Short | Q1 - Q4 2020 | Crude Oil
Derivative [Line Items]
Weighted Average Price ($/Bbl / $/MMBtu) | $ / bbl		(5.38)
Subsequent Event | Q1 - Q4 2019 | Natural Gas
Derivative [Line Items]
Natural gas volume (MMBtu) | MMBTU	1,277,550
Weighted Average Price ($/Bbl / $/MMBtu) | $ / MMBTU	2.87
Subsequent Event | Q1 - Q4 2019 | Crude Oil
Derivative [Line Items]
Crude oil volume (Bbl) | bbl	730,000
Weighted Average Price ($/Bbl / $/MMBtu) | $ / bbl	73.05
Subsequent Event | Q1 - Q4 2020 | Crude Oil
Derivative [Line Items]
Crude oil volume (Bbl) | bbl	732,000
Weighted Average Price ($/Bbl / $/MMBtu) | $ / bbl	68.67
Subsequent Event | Q1 - Q4 2019 | Crude Oil
Derivative [Line Items]
Crude oil volume (Bbl) | bbl	730,000
Subsequent Event | Q1 - Q4 2020 | Crude Oil
Derivative [Line Items]
Crude oil volume (Bbl) | bbl	732,000
Subsequent Event | Q1 - Q4 2019 | Natural Gas
Derivative [Line Items]
Natural gas volume (MMBtu) | MMBTU	1,277,550
Subsequent Event | Short | Q1 - Q4 2019 | Crude Oil
Derivative [Line Items]
Weighted Average Price ($/Bbl / $/MMBtu) | $ / bbl	(5.50)
Subsequent Event | Short | Q1 - Q4 2020 | Crude Oil
Derivative [Line Items]
Weighted Average Price ($/Bbl / $/MMBtu) | $ / bbl	(0.10)
Subsequent Event | Short | Q1 - Q4 2019 | Natural Gas
Derivative [Line Items]
Weighted Average Price ($/Bbl / $/MMBtu) | $ / MMBTU	(1.28)