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Derivative Activities - Effects of Derivatives on Consolidated Statements of Operations (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Derivative [Line Items] |  |  |  |
Derivative Fair Value (Loss) Income | $ (652,220) | $ (124,690) | $ (959,782) | $ 102,182
Contingent Consideration |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative Fair Value (Loss) Income | 12,870 | 430 | 34,260 | 430
Swaptions |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative Fair Value (Loss) Income | (33,718) | (14,166) | (50,329) | (15,520)
Three Way Collars |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative Fair Value (Loss) Income | (173,344) | (20,705) | (226,176) | (38,267)
Collars |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative Fair Value (Loss) Income | (106,340) | (16,893) | (158,562) | (14,336)
Calls |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative Fair Value (Loss) Income | (10,018) | (255) | (10,793) | (12)
Basis Swaps |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative Fair Value (Loss) Income | (8,469) | 15,587 | 11,054 | 31,750
Commodity | Swaps |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative Fair Value (Loss) Income | (332,855) | (91,425) | (558,186) | 142,413
Freight | Swaps |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative Fair Value (Loss) Income | $ (346) | $ 2,737 | $ (1,050) | $ (4,276)

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- 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 + Details
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