Derivative Instruments and Hedging Activities - Derivative Instruments Summary (Details)	Dec. 31, 2019 $ / MMBTU bbl / d $ / bbl MMBTU / d
Crude Oil | 2020 Sold Calls NYMEX WTI
Derivative [Line Items]
Volume Per Day (in units per day) | bbl / d	8,000
Crude Oil | 2020 Swaps NYMEX WTI
Derivative [Line Items]
Volume Per Day (in units per day) | bbl / d	35,000
Crude Oil | 2020 Three-Way Collars NYMEX WTI
Derivative [Line Items]
Volume Per Day (in units per day) | bbl / d	30,000
Crude Oil | 2020 Swaps NYMEX WTI
Derivative [Line Items]
Volume Per Day (in units per day) | bbl / d	24,000
Crude Oil | 2020 Call Swaption
Derivative [Line Items]
Volume Per Day (in units per day) | bbl / d	11,000
Crude Oil | 2020 Basis Swaps
Derivative [Line Items]
Volume Per Day (in units per day) | bbl / d	15,000
Natural Gas | Ethane Swaps
Derivative [Line Items]
Volume Per Day (in units per day) | bbl / d	2,000
Natural Gas | Propane Swaps
Derivative [Line Items]
Volume Per Day (in units per day) | bbl / d	5,000
Natural Gas | Isobutane Swaps
Derivative [Line Items]
Volume Per Day (in units per day) | bbl / d	1,000
Natural Gas | Butane Swaps
Derivative [Line Items]
Volume Per Day (in units per day) | bbl / d	1,500
Natural Gas | 2020 Swaps NYMEX HH
Derivative [Line Items]
Volume Per Day (in units per day) | MMBTU / d	90,000
Natural Gas | 2020 Three-Way Collars NYMEX HH
Derivative [Line Items]
Volume Per Day (in units per day) | MMBTU / d	40,000
Natural Gas | 2020 Sold Puts NYMEX HH
Derivative [Line Items]
Volume Per Day (in units per day) | MMBTU / d	90,000
Natural Gas | 2020 Basis Swaps CIG
Derivative [Line Items]
Volume Per Day (in units per day) | MMBTU / d	139,000
Natural Gas | 2020 Basis Swaps Waha
Derivative [Line Items]
Volume Per Day (in units per day) | MMBTU / d	49,500
Natural Gas | 2021 Basis Swaps CIG
Derivative [Line Items]
Volume Per Day (in units per day) | MMBTU / d	60,000
Weighted Average Differential (in usd per unit) | $ / MMBTU	(0.52)
Natural Gas | 2021 Basis Swaps Waha
Derivative [Line Items]
Volume Per Day (in units per day) | MMBTU / d	14,000
Swaps | Crude Oil | 2020 Sold Calls NYMEX WTI
Derivative [Line Items]
Weighted Average Fixed Price (in usd per unit)	65.59
Swaps | Crude Oil | 2020 Swaps NYMEX WTI
Derivative [Line Items]
Weighted Average Fixed Price (in usd per unit)	58.12
Swaps | Crude Oil | 2020 Swaps NYMEX WTI
Derivative [Line Items]
Weighted Average Fixed Price (in usd per unit)	59.54
Swaps | Crude Oil | 2020 Call Swaption
Derivative [Line Items]
Weighted Average Fixed Price (in usd per unit)	58.95
Swaps | Crude Oil | 2020 Basis Swaps
Derivative [Line Items]
Weighted Average Differential (in usd per unit)	(5.01)
Swaps | Natural Gas | Ethane Swaps
Derivative [Line Items]
Weighted Average Fixed Price (in usd per unit)	7.77
Swaps | Natural Gas | Propane Swaps
Derivative [Line Items]
Weighted Average Fixed Price (in usd per unit)	21.04
Swaps | Natural Gas | Isobutane Swaps
Derivative [Line Items]
Weighted Average Fixed Price (in usd per unit)	25.36
Swaps | Natural Gas | Butane Swaps
Derivative [Line Items]
Weighted Average Fixed Price (in usd per unit)	24.31
Swaps | Natural Gas | 2020 Swaps NYMEX HH
Derivative [Line Items]
Weighted Average Fixed Price (in usd per unit) | $ / MMBTU	2.60
Swaps | Natural Gas | 2020 Basis Swaps CIG
Derivative [Line Items]
Weighted Average Differential (in usd per unit) | $ / MMBTU	(0.56)
Swaps | Natural Gas | 2020 Basis Swaps Waha
Derivative [Line Items]
Weighted Average Differential (in usd per unit) | $ / MMBTU	(1.05)
Swaps | Natural Gas | 2021 Basis Swaps Waha
Derivative [Line Items]
Weighted Average Differential (in usd per unit) | $ / MMBTU	(0.60)
Collars | Crude Oil | 2020 Three-Way Collars NYMEX WTI
Derivative [Line Items]
Weighted Average Short Put Price (in usd per unit)	48.33
Weighted Average Floor Price (in usd per unit)	57.87
Weighted Average Ceiling Price (in usd per unit)	64.27
Collars | Natural Gas | 2020 Three-Way Collars NYMEX HH
Derivative [Line Items]
Weighted Average Short Put Price (in usd per unit) | $ / MMBTU	2.25
Weighted Average Floor Price (in usd per unit) | $ / MMBTU	2.70
Weighted Average Ceiling Price (in usd per unit) | $ / MMBTU	2.85
Collars | Natural Gas | 2020 Sold Puts NYMEX HH
Derivative [Line Items]
Weighted Average Short Put Price (in usd per unit) | $ / MMBTU	2.15