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Derivative Instruments - Location and Fair Value of Commodity Derivatives (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Derivatives assets:
Gross Recognized Assets/Liabilities	$ 44,865
Gross Amount Offset	0
Net Recognized Fair Value Assets/Liabilities	44,865
Commodity contracts
Derivatives assets:
Gross Recognized Assets/Liabilities		$ 467
Gross Amount Offset		0
Net Recognized Fair Value Assets/Liabilities		467
Derivatives liabilities:
Gross Recognized Assets/Liabilities	229,827	97,688
Gross Amount Offset	(25,098)	(3,130)
Net Recognized Fair Value Assets/Liabilities	204,729	94,558
Non-current assets | Contingent consideration
Derivatives assets:
Gross Recognized Assets/Liabilities	44,810
Gross Amount Offset	0
Net Recognized Fair Value Assets/Liabilities	44,810
Non-current assets | Commodity contracts
Derivatives assets:
Gross Recognized Assets/Liabilities	55	0
Gross Amount Offset	0	0
Net Recognized Fair Value Assets/Liabilities	55	0
Current assets | Commodity contracts
Derivatives assets:
Gross Recognized Assets/Liabilities		467
Gross Amount Offset		0
Net Recognized Fair Value Assets/Liabilities		467
Current liabilities | Commodity contracts
Derivatives liabilities:
Gross Recognized Assets/Liabilities	96,172	59,262
Gross Amount Offset	(6,725)	(2,318)
Net Recognized Fair Value Assets/Liabilities	89,447	56,944
Non-current liabilities | Commodity contracts
Derivatives liabilities:
Gross Recognized Assets/Liabilities	133,655	38,426
Gross Amount Offset	(18,373)	(812)
Net Recognized Fair Value Assets/Liabilities	$ 115,282	$ 37,614

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