Commodity Price Risk Activities - Additional Information (Details)	May 01, 2018 $ / bbl bbl	Mar. 31, 2018 DeliveryObligation
Derivative [Line Items]
Number of open physical obligations | DeliveryObligation		0
Subsequent Event | Oil -WTI Swaps July-December 2018
Derivative [Line Items]
Total Volume | bbl	253,400
Weighted Average Price - Swap | $ / bbl	69.15