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v3.20.4

Derivative Financial Instruments and Hedging Activities - Additional Information (Detail) | 2 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Feb. 17, 2021 MMBTU Boe | Dec. 31, 2020 USD ($) MMBTU $ / MMBTU | Feb. 16, 2021 $ / MMBTU $ / bbl
Natural Gas 2-Way Collar Contracts |  |  |
Derivative Instruments And Hedging Activities [Line Items] |  |  |
Volume (in MMBTU) | MMBTU |  | 120,450,000 |
Ceiling, Average price (in dollars per MMBTU) | $ / MMBTU |  | 2.99 |
Floor, Average price (in dollars per MMBTU) | $ / MMBTU |  | 2.46 |
Natural Gas 2-Way Collar Contracts | Subsequent Event |  |  |
Derivative Instruments And Hedging Activities [Line Items] |  |  |
Volume (in MMBTU) | MMBTU | 32,880,000 |  |
Ceiling, Average price (in dollars per MMBTU) | $ / MMBTU |  |  | 3.20
Floor, Average price (in dollars per MMBTU) | $ / MMBTU |  |  | 2.50
Oil Collar Contracts | Subsequent Event |  |  |
Derivative Instruments And Hedging Activities [Line Items] |  |  |
Volume (in MMBTU) | Boe | 349,500 |  |
Ceiling, Average price (in dollars per MMBTU) | $ / bbl |  |  | 54.96
Floor, Average price (in dollars per MMBTU) | $ / bbl |  |  | 42.39
Natural Gas Swap Contract |  |  |
Derivative Instruments And Hedging Activities [Line Items] |  |  |
Volume (in MMBTU) | MMBTU |  | 208,333,140 |
Natural Gas Swap Contract | Subsequent Event |  |  |
Derivative Instruments And Hedging Activities [Line Items] |  |  |
Volume (in MMBTU) | MMBTU | 7,300,000 |  |
Ceiling, Average price (in dollars per MMBTU) | $ / MMBTU |  |  | 2.70
Basis Swap Contracts |  |  |
Derivative Instruments And Hedging Activities [Line Items] |  |  |
Volume (in MMBTU) | MMBTU |  | 25,550,000 |
Fair value of derivative net asset | $ |  | $ 1,000,000.0 |
Interest Rate Swap Contracts |  |  |
Derivative Instruments And Hedging Activities [Line Items] |  |  |
Line of credit facility, fair value of amount outstanding | $ |  | 500,000,000.0 |
Derivative liability | $ |  | $ 2,100,000 |
Interest Rate Swap Contracts | LIBOR |  |  |
Derivative Instruments And Hedging Activities [Line Items] |  |  |
Line of credit facility, commitment fee percentage |  | 0.33% |

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- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13433-108611 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
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- Definition The average cap rate on a group of price risk derivatives such as caps or collars. A payment or receipt is triggered if the market rate exceeds the cap rate on the contract. + References No definition available. + Details
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