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Derivative Instruments - Offsetting Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Total Derivative Liabilities
Offsetting Liabilities [Line Items]
Gross  Liabilities	$ (15,757)	$ (19,834)
Gross Amounts Offset	7,797	15,149
Net Liabilities	(7,960)	(4,685)
Cash Collateral Offset	0	491
Net Amount Presented	(7,960)	(4,194)
Total Current Derivative Liabilities
Offsetting Liabilities [Line Items]
Gross  Liabilities	(7,571)	(19,598)
Gross Amounts Offset	5,405	14,949
Net Liabilities	(2,166)	(4,649)
Cash Collateral Offset	0	491
Net Amount Presented	(2,166)	(4,158)
Non-trading commodity derivatives
Offsetting Liabilities [Line Items]
Gross  Liabilities	(7,430)	(18,195)
Gross Amounts Offset	5,393	14,504
Net Liabilities	(2,037)	(3,691)
Cash Collateral Offset	0	491
Net Amount Presented	(2,037)	(3,200)
Trading commodity derivatives
Offsetting Liabilities [Line Items]
Gross  Liabilities	(141)	(1,403)
Gross Amounts Offset	12	445
Net Liabilities	(129)	(958)
Cash Collateral Offset	0	0
Net Amount Presented	(129)	(958)
Total Non-current Derivative Assets
Offsetting Liabilities [Line Items]
Gross  Liabilities	(8,186)	(236)
Gross Amounts Offset	2,392	200
Net Liabilities	(5,794)	(36)
Cash Collateral Offset	0	0
Net Amount Presented	(5,794)	(36)
Non-trading commodity derivatives
Offsetting Liabilities [Line Items]
Gross  Liabilities	(7,679)	(236)
Gross Amounts Offset	2,072	200
Net Liabilities	(5,607)	(36)
Cash Collateral Offset	0	0
Net Amount Presented	(5,607)	(36)
Trading commodity derivatives
Offsetting Liabilities [Line Items]
Gross  Liabilities	(507)	0
Gross Amounts Offset	320	0
Net Liabilities	(187)	0
Cash Collateral Offset	0	0
Net Amount Presented	$ (187)	$ 0

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