Commitments and Contingencies - Narrative (Details) bbl / d in Thousands, $ in Thousands		1 Months Ended	12 Months Ended
	Aug. 31, 2018 bbl / d	Aug. 31, 2018	Dec. 31, 2019 USD ($) MMBtu / day MMBTU	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Other Commitments [Line Items]
Water disposal costs			$ 2,600	$ 2,200	$ 2,400
Oil And Gas Producing Activities, Transportation Costs			$ 72,834	57,624	34,259
Transportation and gathering agreement, requirement for delivery | MMBTU			235,080,400
Delivery commitment term			4 years
Minimum
Other Commitments [Line Items]
Delivery commitment, firm gross sales per day (in MMBTu) | MMBtu / day			40,000
Maximum
Other Commitments [Line Items]
Delivery commitment, firm gross sales per day (in MMBTu) | MMBtu / day			100,000
Transportation Service Agreement | Minimum
Other Commitments [Line Items]
Transportation and gathering agreement, term of agreement			1 year
Transportation and Gathering Agreement
Other Commitments [Line Items]
Oil And Gas Producing Activities, Transportation Costs			$ 12,800	3,700	1,200
Permian Basin Agreement
Other Commitments [Line Items]
Delivery commitment, firm gross sales per day (in barrels) | bbl / d	30
Delivery commitment term		6 years
Permian Basin Agreement | Minimum
Other Commitments [Line Items]
Delivery commitment, firm gross sales per day (in barrels) | bbl / d	30
Permian Basin Agreement | Maximum
Other Commitments [Line Items]
Delivery commitment, firm gross sales per day (in barrels) | bbl / d	105
Frac and Sand Supply Agreement
Other Commitments [Line Items]
Prepayment for purchase obligations			24,800	9,700	13,200
Capitalization costs			$ 5,200	$ 4,600	$ 1,600