Derivative Financial Instruments - Schedule of Oil Derivative Contracts Volume and Weighted Average Prices (Details)	Oct. 01, 2021 MMBTU / d $ / MMBTU	Sep. 30, 2021 MMBTU / d $ / MMBTU $ / bbl
Oil contracts | Brent swap contracts, fourth quarter
Derivative [Line Items]
Volume, barrels per day		17,000
Oil contracts | Brent swap contracts, next year
Derivative [Line Items]
Volume, barrels per day		0
Oil contracts | MEH swap contracts, fourth quarter
Derivative [Line Items]
Volume, barrels per day		43,000
Oil contracts | MEH swap contracts, next year
Derivative [Line Items]
Volume, barrels per day		2,055
Oil contracts | MEH swap contracts, next year | Subsequent event
Derivative [Line Items]
Volume, barrels per day	8,152
Oil contracts | Midland WTI swap contracts, fourth quarter
Derivative [Line Items]
Volume, barrels per day		5,000
Oil contracts | Midland WTI swap contracts, next year
Derivative [Line Items]
Volume, barrels per day		0
Oil contracts | NYMEX WTI swap contracts, fourth quarter
Derivative [Line Items]
Volume, barrels per day		15,000
Oil contracts | NYMEX WTI swap contracts, next year
Derivative [Line Items]
Volume, barrels per day		0
Oil contracts | NYMEX Rollfactor swap contracts, fourth quarter
Derivative [Line Items]
Volume, barrels per day		35,000
Oil contracts | NYMEX Rollfactor swap contracts, next year
Derivative [Line Items]
Volume, barrels per day		0
Oil contracts | Midland WTI Basis swap contracts, fourth quarter
Derivative [Line Items]
Volume, barrels per day		37,000
Oil contracts | Midland WTI Basis swap contracts, next year
Derivative [Line Items]
Volume, barrels per day		26,000
Oil contracts | Brent call contracts sold, fourth quarter
Derivative [Line Items]
Volume, barrels per day		20,000
Oil contracts | Brent call contracts sold, next year
Derivative [Line Items]
Volume, barrels per day		0
Oil contracts | Brent collar contracts, fourth quarter
Derivative [Line Items]
Volume, barrels per day		0
Oil contracts | Brent collar contracts, next year
Derivative [Line Items]
Volume, barrels per day		10,000
Oil contracts | Brent collar contracts, next year | Subsequent event
Derivative [Line Items]
Volume, barrels per day	10,000
Oil contracts | NYMEX WTI collar contracts, fourth quarter
Derivative [Line Items]
Volume, barrels per day		6,000
Oil contracts | NYMEX WTI collar contracts, next year
Derivative [Line Items]
Volume, barrels per day		0
Oil contracts | Brent collar contracts with short puts, fourth quarter
Derivative [Line Items]
Volume, barrels per day		90,000
Oil contracts | Brent collar contracts with short puts, next year
Derivative [Line Items]
Volume, barrels per day		67,000
Oil contracts | Brent collar contracts with short puts, next year | Subsequent event
Derivative [Line Items]
Volume, barrels per day	20,000
Oil contracts | MEH collar contracts with short puts, fourth quarter
Derivative [Line Items]
Volume, barrels per day		9,446
Oil contracts | MEH collar contracts with short puts, next year
Derivative [Line Items]
Volume, barrels per day		0
Oil contracts | NYMEX WTI collar contracts with short puts, fourth quarter
Derivative [Line Items]
Volume, barrels per day		0
Oil contracts | NYMEX WTI collar contracts with short puts, next year
Derivative [Line Items]
Volume, barrels per day		12,000
Oil contracts, price per bbl | Brent swap contracts, fourth quarter
Derivative [Line Items]
Price per Bbl in usd | $ / MMBTU		44.45
Oil contracts, price per bbl | Brent swap contracts, next year
Derivative [Line Items]
Price per Bbl in usd | $ / MMBTU		0
Oil contracts, price per bbl | MEH swap contracts, fourth quarter
Derivative [Line Items]
Price per Bbl in usd | $ / MMBTU		40.52
Oil contracts, price per bbl | MEH swap contracts, next year
Derivative [Line Items]
Price per Bbl in usd | $ / MMBTU		42.80
Oil contracts, price per bbl | MEH swap contracts, next year | Subsequent event
Derivative [Line Items]
Price per Bbl in usd | $ / MMBTU	42.80
Oil contracts, price per bbl | Midland WTI swap contracts, fourth quarter
Derivative [Line Items]
Price per Bbl in usd | $ / MMBTU		40.50
Oil contracts, price per bbl | Midland WTI swap contracts, next year
Derivative [Line Items]
Price per Bbl in usd | $ / MMBTU		0
Oil contracts, price per bbl | NYMEX WTI swap contracts, fourth quarter
Derivative [Line Items]
Price per Bbl in usd | $ / MMBTU		52.85
Oil contracts, price per bbl | NYMEX WTI swap contracts, next year
Derivative [Line Items]
Price per Bbl in usd | $ / MMBTU		0
Oil contracts, price per bbl | NYMEX Rollfactor swap contracts, fourth quarter
Derivative [Line Items]
Price per Bbl in usd | $ / MMBTU		0.17
Oil contracts, price per bbl | NYMEX Rollfactor swap contracts, next year
Derivative [Line Items]
Price per Bbl in usd | $ / MMBTU		0
Oil contracts, price per bbl | Midland WTI Basis swap contracts, fourth quarter
Derivative [Line Items]
Price per Bbl in usd | $ / MMBTU		0.89
Oil contracts, price per bbl | Midland WTI Basis swap contracts, next year
Derivative [Line Items]
Price per Bbl in usd | $ / MMBTU		0.50
Oil contracts, price per bbl | Brent call contracts sold, fourth quarter
Derivative [Line Items]
Price per Bbl in usd | $ / MMBTU		69.74
Oil contracts, price per bbl | Brent call contracts sold, next year
Derivative [Line Items]
Price per Bbl in usd | $ / MMBTU		0
Oil contracts, price per bbl | Brent collar contracts, fourth quarter
Derivative [Line Items]
Ceiling, price per barrel | $ / bbl		0
Floor, price per barrel | $ / bbl		0
Oil contracts, price per bbl | Brent collar contracts, next year
Derivative [Line Items]
Ceiling, price per barrel | $ / bbl		60.32
Floor, price per barrel | $ / bbl		50.00
Oil contracts, price per bbl | Brent collar contracts, next year | Subsequent event
Derivative [Line Items]
Price per Bbl in usd | $ / MMBTU	60.32
Floor, price per barrel | $ / MMBTU	50.00
Oil contracts, price per bbl | NYMEX WTI collar contracts, fourth quarter
Derivative [Line Items]
Ceiling, price per barrel | $ / bbl		55.54
Floor, price per barrel | $ / bbl		50.00
Oil contracts, price per bbl | NYMEX WTI collar contracts, next year
Derivative [Line Items]
Ceiling, price per barrel | $ / bbl		0
Floor, price per barrel | $ / bbl		0
Oil contracts, price per bbl | Brent collar contracts with short puts, fourth quarter
Derivative [Line Items]
Ceiling, price per barrel | $ / bbl		50.74
Floor, price per barrel | $ / bbl		45.11
Short put, price per barrel | $ / bbl		35.07
Oil contracts, price per bbl | Brent collar contracts with short puts, next year
Derivative [Line Items]
Ceiling, price per barrel | $ / bbl		66.02
Floor, price per barrel | $ / bbl		52.39
Short put, price per barrel | $ / bbl		39.25
Oil contracts, price per bbl | Brent collar contracts with short puts, next year | Subsequent event
Derivative [Line Items]
Price per Bbl in usd | $ / MMBTU	57.88
Floor, price per barrel | $ / MMBTU	45.50
Short put, price per barrel | $ / MMBTU	35.00
Oil contracts, price per bbl | MEH collar contracts with short puts, fourth quarter
Derivative [Line Items]
Ceiling, price per barrel | $ / bbl		51.29
Floor, price per barrel | $ / bbl		41.55
Short put, price per barrel | $ / bbl		31.55
Oil contracts, price per bbl | MEH collar contracts with short puts, next year
Derivative [Line Items]
Ceiling, price per barrel | $ / bbl		0
Floor, price per barrel | $ / bbl		0
Short put, price per barrel | $ / bbl		0
Oil contracts, price per bbl | NYMEX WTI collar contracts with short puts, fourth quarter
Derivative [Line Items]
Ceiling, price per barrel | $ / bbl		0
Floor, price per barrel | $ / bbl		0
Short put, price per barrel | $ / bbl		0
Oil contracts, price per bbl | NYMEX WTI collar contracts with short puts, next year
Derivative [Line Items]
Ceiling, price per barrel | $ / bbl		65.86
Floor, price per barrel | $ / bbl		52.50
Short put, price per barrel | $ / bbl		40.00