Derivative Financial Instruments and Hedging Activities - Schedule of Derivative Instruments (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Derivative [Line Items]
Derivative asset, current	$ 5,258	$ 8,913
Assets, fair value, long-term	0	661
Derivative liability, current	181,945	47,005
Liability, fair value, long-term	4,042	2,364
Derivative Financial Instruments – current
Derivative [Line Items]
Derivative asset, current	5,258	8,913
Derivative liability, current	181,945	47,005
Derivative Financial Instruments – current \| Natural gas price derivatives
Derivative [Line Items]
Derivative asset, current	4,528	8,913
Derivative liability, current	181,215	45,158
Derivative Financial Instruments – current \| Oil price derivatives
Derivative [Line Items]
Derivative asset, current	730	0
Derivative liability, current	730	831
Derivative Financial Instruments – current \| Interest rate derivatives
Derivative [Line Items]
Derivative liability, current	0	1,016
Derivative Financial Instruments – long-term
Derivative [Line Items]
Liability, fair value, long-term	4,042	2,364
Derivative Financial Instruments – long-term \| Natural gas price derivatives
Derivative [Line Items]
Assets, fair value, long-term	0	661
Liability, fair value, long-term	4,042	1,308
Derivative Financial Instruments – long-term \| Interest rate derivatives
Derivative [Line Items]
Liability, fair value, long-term	$ 0	$ 1,056

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, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-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

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