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Derivatives - Schedule of Pre-Tax Gain (Loss) Recognized in the Statement of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Commodity derivatives | Cost of revenue
Derivative Instruments, Gain (Loss) [Line Items]
Pre-tax gains (losses)	$ (10,223)	$ 781	$ (9,592)	$ (56,378)
J. Aron repurchase obligation derivative | Cost of revenue
Derivative Instruments, Gain (Loss) [Line Items]
Pre-tax gains (losses)	(4,542)	(10,370)	(5,317)	(57,015)
MLC terminal obligation derivative | Cost of revenue
Derivative Instruments, Gain (Loss) [Line Items]
Pre-tax gains (losses)	(31,229)	(26,882)	(55,601)	56,076
Interest rate derivatives | Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Pre-tax gains (losses)	$ 0	$ (292)	$ 104	$ (2,312)

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=125515794&loc=SL5618551-113959

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+ References

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