Commodity Price Risk Activities - Additional Information (Details)	6 Months Ended
	Jun. 30, 2017 bbl / d MMBTU / d MMBTU DeliveryObligation bbl
Derivative [Line Items]
Number of open physical obligations | DeliveryObligation	0
Derivative Contracts, Remainder of 2017
Derivative [Line Items]
Derivative contracts, aggregate volume | bbl	542,200
Derivative contracts, aggregate volume per day | bbl / d	2,947
Derivative Contracts, 2018
Derivative [Line Items]
Derivative contracts, aggregate volume | bbl	1,204,500
Derivative contracts, aggregate volume per day | bbl / d	3,300
Derivative Contracts, 2019
Derivative [Line Items]
Derivative contracts, aggregate volume | bbl	560,700
Derivative contracts, aggregate volume per day | bbl / d	1,536
Natural Gas Derivative Contracts, 2017
Derivative [Line Items]
Derivative contracts, aggregate energy | MMBTU	1,288,000
Derivative contracts, aggregate volume per day | MMBTU / d	7,000
Derivative Contracts, 2020
Derivative [Line Items]
Derivative contracts, aggregate volume | bbl	203,600
Derivative contracts, aggregate volume per day | bbl / d	1,119