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Derivative Activities - Effects of Derivatives on Consolidated Statements of Operations (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Derivative [Line Items]
Derivative Fair Value (Loss) Income	$ (249,683)	$ (6,303)	$ (307,562)	$ 226,872
Contingent Consideration
Derivative [Line Items]
Derivative Fair Value (Loss) Income	17,460	0	21,390	0
Swaptions
Derivative [Line Items]
Derivative Fair Value (Loss) Income	(19,268)	(2,019)	(16,612)	(1,353)
Three Way Collars
Derivative [Line Items]
Derivative Fair Value (Loss) Income	(53,705)	(6,200)	(52,832)	(17,562)
Collars
Derivative [Line Items]
Derivative Fair Value (Loss) Income	(38,934)	2,557	(52,222)	2,557
Calls
Derivative [Line Items]
Derivative Fair Value (Loss) Income	0	(33)	(775)	242
Basis Swaps
Derivative [Line Items]
Derivative Fair Value (Loss) Income	17,368	(5,180)	19,523	16,163
Commodity | Swaps
Derivative [Line Items]
Derivative Fair Value (Loss) Income	(172,566)	5,484	(225,330)	233,838
Freight | Swaps
Derivative [Line Items]
Derivative Fair Value (Loss) Income	$ (38)	$ (912)	$ (704)	$ (7,013)

X

- Definition

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5618551-113959

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+ References

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