Risk Management and Derivative Instruments- Hedging (Details) - Designated as Hedging Instrument - NYMEX	3 Months Ended
	Mar. 31, 2019 MMBTU $ / bbl $ / MMBTU bbl
WTI | Swap Contract Quarter Ended March 31, 2019
Risk Management and Derivative Instruments
Hedge position (Bbls) | bbl	74,800
Swap weighted average strike price	66.48
WTI | Swap Contract Quarter Ended June 30, 2019
Risk Management and Derivative Instruments
Hedge position (Bbls) | bbl	57,650
Swap weighted average strike price	64.69
WTI | Swap Contract Quarter Ended September 30, 2019
Risk Management and Derivative Instruments
Hedge position (Bbls) | bbl	46,000
Swap weighted average strike price	62.96
WTI | Swap Contract Quarter Ended December 31, 2019
Risk Management and Derivative Instruments
Hedge position (Bbls) | bbl	46,000
Swap weighted average strike price	61.43
WTI | Three Way Collar Contract Quarter Ended March 31, 2019
Risk Management and Derivative Instruments
Hedge position (Bbls) | bbl	180,000
Weighted average ceiling price	63.14
Weighted average floor price	53.75
Weighted average sub-floor price	43.75
WTI | Three Way Collar Contract Quarter Ended June 30, 2019
Risk Management and Derivative Instruments
Hedge position (Bbls) | bbl	182,000
Weighted average ceiling price	63.14
Weighted average floor price	53.75
Weighted average sub-floor price	43.75
WTI | Three Way Collar Contract Quarter Ended September 30, 2019
Risk Management and Derivative Instruments
Hedge position (Bbls) | bbl	184,000
Weighted average ceiling price	63.14
Weighted average floor price	53.75
Weighted average sub-floor price	43.75
WTI | Three Way Collar Contract Quarter Ended December 31, 2019
Risk Management and Derivative Instruments
Hedge position (Bbls) | bbl	184,000
Weighted average ceiling price	63.14
Weighted average floor price	53.75
Weighted average sub-floor price	43.75
WTI | Three Way Collar Contract Quarter Ended March 31, 2020
Risk Management and Derivative Instruments
Hedge position (Bbls) | bbl	91,000
Weighted average ceiling price	65.75
Weighted average floor price	50.00
Weighted average sub-floor price	40.00
WTI | Three Way Collar Contract Quarter Ended June 30, 2020
Risk Management and Derivative Instruments
Hedge position (Bbls) | bbl	91,000
Weighted average ceiling price	65.75
Weighted average floor price	50.00
Weighted average sub-floor price	40.00
WTI | Three Way Collar Contract Quarter Ended September 30, 2020
Risk Management and Derivative Instruments
Hedge position (Bbls) | bbl	92,000
Weighted average ceiling price	65.75
Weighted average floor price	50.00
Weighted average sub-floor price	40.00
WTI | Three Way Collar Contract Quarter Ended December 31, 2020
Risk Management and Derivative Instruments
Hedge position (Bbls) | bbl	92,000
Weighted average ceiling price	65.75
Weighted average floor price	50.00
Weighted average sub-floor price	40.00
HENRY HUB | Swap Contract Quarter Ended March 31, 2019
Risk Management and Derivative Instruments
Hedge position (MMBtu) | MMBTU	1,980,000
Swap weighted average strike price | $ / MMBTU	3.01
HENRY HUB | Swap Contract Quarter Ended June 30, 2019
Risk Management and Derivative Instruments
Hedge position (MMBtu) | MMBTU	1,365,000
Swap weighted average strike price | $ / MMBTU	2.75
HENRY HUB | Swap Contract Quarter Ended September 30, 2019
Risk Management and Derivative Instruments
Hedge position (MMBtu) | MMBTU	1,380,000
Swap weighted average strike price | $ / MMBTU	2.75
HENRY HUB | Swap Contract Quarter Ended December 31, 2019
Risk Management and Derivative Instruments
Hedge position (MMBtu) | MMBTU	465,000
Swap weighted average strike price | $ / MMBTU	2.75
HENRY HUB | Three Way Collar Contract Quarter Ended March 31, 2019
Risk Management and Derivative Instruments
Hedge position (MMBtu) | MMBTU	1,350,000
Weighted average ceiling price | $ / MMBTU	3.40
Weighted average floor price | $ / MMBTU	3.00
Weighted average sub-floor price | $ / MMBTU	2.50
HENRY HUB | Three Way Collar Contract Quarter Ended December 31, 2019
Risk Management and Derivative Instruments
Hedge position (MMBtu) | MMBTU	610,000
Weighted average ceiling price | $ / MMBTU	3.45
Weighted average floor price | $ / MMBTU	2.65
Weighted average sub-floor price | $ / MMBTU	2.15
HENRY HUB | Three Way Collar Contract Quarter Ended March 31, 2020
Risk Management and Derivative Instruments
Hedge position (MMBtu) | MMBTU	900,000
Weighted average ceiling price | $ / MMBTU	3.45
Weighted average floor price | $ / MMBTU	2.65
Weighted average sub-floor price | $ / MMBTU	2.15