Derivative Instruments and Hedging Activities - Summary of Outstanding Derivative Contracts (Details)	Jun. 30, 2020 $ / bbl bbl
Crude Oil | NYMEX WTI Swaps 2020
Derivative
Bbls per day (Bbls per day) | bbl	37,500
Crude Oil | NYMEX WTI Swaps 2020
Derivative
Bbls per day (Bbls per day) | bbl	14,500
Crude Oil | NYMEX WTI Three-Way Collars 2020
Derivative
Bbls per day (Bbls per day) | bbl	53,000
Crude Oil | NYMEX WTI Sold Calls 2020
Derivative
Bbls per day (Bbls per day) | bbl	8,000
Crude Oil | Midland Basis Swaps 2020
Derivative
Bbls per day (Bbls per day) | bbl	27,000
Crude Oil | Midland Basis Swaps 2020
Derivative
Bbls per day (Bbls per day) | bbl	22,000
Crude Oil | WTI Roll Basis Swaps 2020
Derivative
Bbls per day (Bbls per day) | bbl	78,000
Crude Oil | WTI Roll Basis Swaps 2020
Derivative
Bbls per day (Bbls per day) | bbl	64,000
Natural Gas Liquids Contract | Ethane Swaps 2020
Derivative
Bbls per day (Bbls per day) | bbl	6,500
Weighted average fixed price ($ per bbl)	8.39
Natural Gas Liquids Contract | Ethane Swaps 2020
Derivative
Bbls per day (Bbls per day) | bbl	8,500
Weighted average fixed price ($ per bbl)	8.39
Natural Gas Liquids Contract | Ethane Swaps 2020
Derivative
Bbls per day (Bbls per day) | bbl	10,500
Weighted average fixed price ($ per bbl)	8.45
Natural Gas Liquids Contract | Ethane Swaps 2020
Derivative
Bbls per day (Bbls per day) | bbl	8,500
Weighted average fixed price ($ per bbl)	8.60
Natural Gas Liquids Contract | Propane Swaps 2020
Derivative
Bbls per day (Bbls per day) | bbl	5,000
Weighted average fixed price ($ per bbl)	21.04
Natural Gas Liquids Contract | IsoButane Swaps 2020
Derivative
Bbls per day (Bbls per day) | bbl	1,000
Weighted average fixed price ($ per bbl)	25.36
Natural Gas Liquids Contract | Butane Swaps 2020
Derivative
Bbls per day (Bbls per day) | bbl	1,500
Weighted average fixed price ($ per bbl)	24.31
Natural Gas Contract | NYMEX HH - Swaps 2020
Derivative
Bbls per day (Bbls per day) | bbl	90,000
Natural Gas Contract | NYMEX HH - Sold Puts 2020
Derivative
Bbls per day (Bbls per day) | bbl	90,000
Natural Gas Contract | NYMEX HH Three-Way Collars 2020
Derivative
Bbls per day (Bbls per day) | bbl	40,000
Natural Gas Contract | CIG Basis Swaps 2020
Derivative
Bbls per day (Bbls per day) | bbl	139,000
Natural Gas Contract | WAHA Basis Swaps 2020
Derivative
Bbls per day (Bbls per day) | bbl	49,500
Natural Gas Contract | NYMEX HH Swaps 2021
Derivative
Bbls per day (Bbls per day) | bbl	70,000
Natural Gas Contract | NYMEX HH Sold Call Swaptions 2021
Derivative
Bbls per day (Bbls per day) | bbl	70,000
Natural Gas Contract | NYMEX HH Three-Way Collars 2021
Derivative
Bbls per day (Bbls per day) | bbl	62,000
Natural Gas Contract | CIG Basis Swaps 2021
Derivative
Bbls per day (Bbls per day) | bbl	114,000
Natural Gas Contract | WAHA Basis Swaps 2021
Derivative
Bbls per day (Bbls per day) | bbl	32,000
Natural Gas Contract | ICE TTF Swaps 2021
Derivative
Bbls per day (Bbls per day) | bbl	35,000
Natural Gas Contract | ICE TTF Swaps 2022
Derivative
Bbls per day (Bbls per day) | bbl	49,000
Swaps | Crude Oil | NYMEX WTI Swaps 2020
Derivative
Weighted average fixed price ($ per bbl)	36.80
Swaps | Crude Oil | NYMEX WTI Swaps 2020
Derivative
Weighted average fixed price ($ per bbl)	51.91
Swaps | Crude Oil | NYMEX WTI Sold Calls 2020
Derivative
Weighted average fixed price ($ per bbl)	65.59
Swaps | Crude Oil | Midland Basis Swaps 2020
Derivative
Weighted average differential ($ per bbl)	(4.03)
Swaps | Crude Oil | Midland Basis Swaps 2020
Derivative
Weighted average differential ($ per bbl)	(4.21)
Swaps | Crude Oil | WTI Roll Basis Swaps 2020
Derivative
Weighted average differential ($ per bbl)	(2.28)
Swaps | Crude Oil | WTI Roll Basis Swaps 2020
Derivative
Weighted average differential ($ per bbl)	(2.19)
Swaps | Natural Gas Contract | NYMEX HH - Swaps 2020
Derivative
Weighted average fixed price ($ per bbl)	2.60
Swaps | Natural Gas Contract | CIG Basis Swaps 2020
Derivative
Weighted average differential ($ per bbl)	(0.57)
Swaps | Natural Gas Contract | WAHA Basis Swaps 2020
Derivative
Weighted average differential ($ per bbl)	(1.05)
Swaps | Natural Gas Contract | NYMEX HH Swaps 2021
Derivative
Weighted average fixed price ($ per bbl)	2.42
Swaps | Natural Gas Contract | NYMEX HH Sold Call Swaptions 2021
Derivative
Weighted average fixed price ($ per bbl)	2.42
Swaps | Natural Gas Contract | CIG Basis Swaps 2021
Derivative
Weighted average differential ($ per bbl)	(0.44)
Swaps | Natural Gas Contract | WAHA Basis Swaps 2021
Derivative
Weighted average differential ($ per bbl)	(0.71)
Swaps | Natural Gas Contract | ICE TTF Swaps 2021
Derivative
Weighted average fixed price ($ per bbl)	4.15
Swaps | Natural Gas Contract | ICE TTF Swaps 2022
Derivative
Weighted average fixed price ($ per bbl)	4.26
Collars | Crude Oil | NYMEX WTI Three-Way Collars 2020
Derivative
Weighted average short put price ($ per bbl)	10.00
Weighted average floor price ($ per bbl)	25.00
Weighted average ceiling price ($ per bbl)	37.20
Collars | Natural Gas Contract | NYMEX HH - Sold Puts 2020
Derivative
Weighted average short put price ($ per bbl)	2.15
Collars | Natural Gas Contract | NYMEX HH Three-Way Collars 2020
Derivative
Weighted average short put price ($ per bbl)	2.25
Weighted average floor price ($ per bbl)	2.70
Weighted average ceiling price ($ per bbl)	2.85
Collars | Natural Gas Contract | NYMEX HH Three-Way Collars 2021
Derivative
Weighted average short put price ($ per bbl)	1.90
Weighted average floor price ($ per bbl)	2.40
Weighted average ceiling price ($ per bbl)	2.88