Commodity Price Risk Activities - Schedule of Derivative Transactions Outstanding (Details)	9 Months Ended
	Sep. 30, 2017 MMBTU $ / bbl $ / MMBTU bbl
Oil - WTI Fixed Price Swap - $51.05 - Settlement Period - October - December 2017
Derivative [Line Items]
Total Volume | bbl	27,600
Fixed Price | $ / bbl	51.05
Oil - WTI Fixed Price Swap - $50.60 - Settlement Period - October - December 2017
Derivative [Line Items]
Total Volume | bbl	18,400
Fixed Price | $ / bbl	50.60
Oil - WTI Fixed Price Swap - $52.90 - Settlement Period - October - December 2017
Derivative [Line Items]
Total Volume | bbl	92,000
Fixed Price | $ / bbl	52.90
Oil - WTI Fixed Price Swap - $56.00 - Settlement Period - October - December 2017
Derivative [Line Items]
Total Volume | bbl	46,000
Fixed Price | $ / bbl	56.00
Oil - WTI Fixed Price Swap - $49.85 - Settlement Period - October - December 2017
Derivative [Line Items]
Total Volume | bbl	95,600
Oil - WTI Fixed Price Swap - $54.18 - Settlement Period - January - December 2018
Derivative [Line Items]
Total Volume | bbl	365,000
Fixed Price | $ / bbl	49.85
Oil - WTI Fixed Price Swap - $55.65 - Settlement Period - January - December 2018
Derivative [Line Items]
Total Volume | bbl	182,500
Fixed Price | $ / bbl	54.18
Oil - WTI Fixed Price Swap - $55.50 - Settlement Period - January - December 2018
Derivative [Line Items]
Total Volume | bbl	182,500
Fixed Price | $ / bbl	55.65
Oil - WTI Fixed Price Swap - $47.10 - Settlement Period - January - December 2018
Derivative [Line Items]
Total Volume | bbl	292,000
Fixed Price | $ / bbl	55.50
Oil - WTI Fixed Price Swap - $48.04 - Settlement Period - January - December 2019
Derivative [Line Items]
Total Volume | bbl	560,700
Fixed Price | $ / bbl	47.10
Oil - WTI Fixed Price Swap - $50.17 - Settlement Period - January - December 2018
Derivative [Line Items]
Total Volume | bbl	509,000
Oil - WTI Fixed Price Swap - $48.90 - Settlement Period - January - June 2020
Derivative [Line Items]
Total Volume | bbl	203,600
Fixed Price | $ / bbl	50.17
Oil - WTI Fixed Price Swap - $50.40 - Settlement Period - January - December 2019
Derivative [Line Items]
Total Volume | bbl	508,900
Natural Gas - Henry Hub NYMEX Fixed Price Swap - $3.09 - Settlement Period - January - December 2018
Derivative [Line Items]
Total Energy | MMBTU	1,825,000
Fixed Price | $ / MMBTU	3.09
Natural Gas - Henry Hub NYMEX Fixed Price Swap - $3.36 - Settlement Period - October - December 2017
Derivative [Line Items]
Total Energy | MMBTU	644,000
Fixed Price | $ / MMBTU	3.36
Oil - 3 Way Collar - Settlement Period - October - December 2017
Derivative [Line Items]
Total Volume | bbl	85,000
Oil - 3 Way Collar - Settlement Period - October - December 2017 | Puts | Minimum
Derivative [Line Items]
Fixed Price | $ / bbl	40.00
Oil - 3 Way Collar - Settlement Period - October - December 2017 | Puts | Maximum
Derivative [Line Items]
Fixed Price | $ / bbl	60.00
Oil - 3 Way Collar - Settlement Period - October - December 2017 | Calls
Derivative [Line Items]
Fixed Price | $ / bbl	85.00
Oil - 2 Way Collar - Settlement Period - January - December 2018
Derivative [Line Items]
Total Volume | bbl	182,500
Oil - 2 Way Collar - Settlement Period - January - December 2018 | Puts
Derivative [Line Items]
Fixed Price | $ / bbl	50.00
Oil - 2 Way Collar - Settlement Period - January - December 2018 | Calls
Derivative [Line Items]
Fixed Price | $ / bbl	59.45