COMMODITY DERIVATIVE FINANCIAL INSTRUMENTS - Summary of Open Derivative Contracts for Oil and Natural Gas (Details) - Not Designated as Hedging Instrument - Swap - Swaps Contract bbl in Thousands, MMBTU in Thousands	9 Months Ended
	Sep. 30, 2021 MMBTU $ / bbl $ / MMBTU bbl
Oil | Third Quarter 2021
Derivative [Line Items]
Derivative contract, volume (in Bbl) | bbl	220
Derivative contract, weighted average price (in USD per Bbl or MMBtu) | $ / bbl	38.97
Derivative contract, price range low (in USD per Bbl or MMBtu) | $ / bbl	32.64
Derivative contract, price range high (in USD per Bbl or MMBtu) | $ / bbl	46.50
Oil | Fourth Quarter 2021
Derivative [Line Items]
Derivative contract, volume (in Bbl) | bbl	660
Derivative contract, weighted average price (in USD per Bbl or MMBtu) | $ / bbl	38.97
Derivative contract, price range low (in USD per Bbl or MMBtu) | $ / bbl	32.64
Derivative contract, price range high (in USD per Bbl or MMBtu) | $ / bbl	46.50
Oil | First Quarter 2022
Derivative [Line Items]
Derivative contract, volume (in Bbl) | bbl	480
Derivative contract, weighted average price (in USD per Bbl or MMBtu) | $ / bbl	60.14
Derivative contract, price range low (in USD per Bbl or MMBtu) | $ / bbl	55.29
Derivative contract, price range high (in USD per Bbl or MMBtu) | $ / bbl	65.50
Oil | Second Quarter 2022
Derivative [Line Items]
Derivative contract, volume (in Bbl) | bbl	480
Derivative contract, weighted average price (in USD per Bbl or MMBtu) | $ / bbl	60.14
Derivative contract, price range low (in USD per Bbl or MMBtu) | $ / bbl	55.29
Derivative contract, price range high (in USD per Bbl or MMBtu) | $ / bbl	65.50
Oil | Third Quarter 2022
Derivative [Line Items]
Derivative contract, volume (in Bbl) | bbl	480
Derivative contract, weighted average price (in USD per Bbl or MMBtu) | $ / bbl	60.14
Derivative contract, price range low (in USD per Bbl or MMBtu) | $ / bbl	55.29
Derivative contract, price range high (in USD per Bbl or MMBtu) | $ / bbl	65.50
Oil | Fourth Quarter 2022
Derivative [Line Items]
Derivative contract, volume (in Bbl) | bbl	480
Derivative contract, weighted average price (in USD per Bbl or MMBtu) | $ / bbl	60.14
Derivative contract, price range low (in USD per Bbl or MMBtu) | $ / bbl	55.29
Derivative contract, price range high (in USD per Bbl or MMBtu) | $ / bbl	65.50
Natural gas and natural gas liquids sales | Fourth Quarter 2021
Derivative [Line Items]
Derivative contract, volume (in MMBtu) | MMBTU	10,120
Derivative contract, weighted average price (in USD per Bbl or MMBtu)	2.69
Derivative contract, price range low (in USD per Bbl or MMBtu)	2.52
Derivative contract, price range high (in USD per Bbl or MMBtu)	3.08
Natural gas and natural gas liquids sales | First Quarter 2022
Derivative [Line Items]
Derivative contract, volume (in MMBtu) | MMBTU	7,920
Derivative contract, weighted average price (in USD per Bbl or MMBtu)	2.98
Derivative contract, price range low (in USD per Bbl or MMBtu)	2.80
Derivative contract, price range high (in USD per Bbl or MMBtu)	3.15
Natural gas and natural gas liquids sales | Second Quarter 2022
Derivative [Line Items]
Derivative contract, volume (in MMBtu) | MMBTU	8,000
Derivative contract, weighted average price (in USD per Bbl or MMBtu)	2.99
Derivative contract, price range low (in USD per Bbl or MMBtu)	2.80
Derivative contract, price range high (in USD per Bbl or MMBtu)	3.15
Natural gas and natural gas liquids sales | Third Quarter 2022
Derivative [Line Items]
Derivative contract, volume (in MMBtu) | MMBTU	8,080
Derivative contract, weighted average price (in USD per Bbl or MMBtu)	2.99
Derivative contract, price range low (in USD per Bbl or MMBtu)	2.80
Derivative contract, price range high (in USD per Bbl or MMBtu)	3.15
Natural gas and natural gas liquids sales | Fourth Quarter 2022
Derivative [Line Items]
Derivative contract, volume (in MMBtu) | MMBTU	8,080
Derivative contract, weighted average price (in USD per Bbl or MMBtu)	2.99
Derivative contract, price range low (in USD per Bbl or MMBtu)	2.80
Derivative contract, price range high (in USD per Bbl or MMBtu)	3.15
Natural gas and natural gas liquids sales | First Quarter 2023
Derivative [Line Items]
Derivative contract, volume (in MMBtu) | MMBTU	1,800
Derivative contract, weighted average price (in USD per Bbl or MMBtu)	3.28
Derivative contract, price range low (in USD per Bbl or MMBtu)	3.28
Derivative contract, price range high (in USD per Bbl or MMBtu)	3.29
Natural gas and natural gas liquids sales | Second Quarter 2023
Derivative [Line Items]
Derivative contract, volume (in MMBtu) | MMBTU	1,820
Derivative contract, weighted average price (in USD per Bbl or MMBtu)	3.28
Derivative contract, price range low (in USD per Bbl or MMBtu)	3.28
Derivative contract, price range high (in USD per Bbl or MMBtu)	3.29
Natural gas and natural gas liquids sales | Third Quarter 2023
Derivative [Line Items]
Derivative contract, volume (in MMBtu) | MMBTU	1,840
Derivative contract, weighted average price (in USD per Bbl or MMBtu)	3.28
Derivative contract, price range low (in USD per Bbl or MMBtu)	3.28
Derivative contract, price range high (in USD per Bbl or MMBtu)	3.29
Natural gas and natural gas liquids sales | Fourth Quarter 2023
Derivative [Line Items]
Derivative contract, volume (in MMBtu) | MMBTU	1,840
Derivative contract, weighted average price (in USD per Bbl or MMBtu)	3.28
Derivative contract, price range low (in USD per Bbl or MMBtu)	3.28
Derivative contract, price range high (in USD per Bbl or MMBtu)	3.29