Derivative Instruments - Offsetting Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Total Derivative Liabilities
Offsetting Liabilities [Line Items]
Gross  Liabilities	$ (17,210)	$ (19,834)
Gross Amounts Offset	3,099	15,149
Net Liabilities	(14,111)	(4,685)
Cash Collateral Offset	458	491
Net Amount Presented	(13,653)	(4,194)
Total Current Derivative Liabilities
Offsetting Liabilities [Line Items]
Gross  Liabilities	(3,396)	(19,598)
Gross Amounts Offset	470	14,949
Net Liabilities	(2,926)	(4,649)
Cash Collateral Offset	458	491
Net Amount Presented	(2,468)	(4,158)
Non-trading commodity derivatives
Offsetting Liabilities [Line Items]
Gross  Liabilities	(2,879)	(18,195)
Gross Amounts Offset	451	14,504
Net Liabilities	(2,428)	(3,691)
Cash Collateral Offset	458	491
Net Amount Presented	(1,970)	(3,200)
Trading commodity derivatives
Offsetting Liabilities [Line Items]
Gross  Liabilities	(517)	(1,403)
Gross Amounts Offset	19	445
Net Liabilities	(498)	(958)
Cash Collateral Offset	0	0
Net Amount Presented	(498)	(958)
Total Non-current Derivative Assets
Offsetting Liabilities [Line Items]
Gross  Liabilities	(13,814)	(236)
Gross Amounts Offset	2,629	200
Net Liabilities	(11,185)	(36)
Cash Collateral Offset	0	0
Net Amount Presented	(11,185)	(36)
Non-trading commodity derivatives
Offsetting Liabilities [Line Items]
Gross  Liabilities	(13,299)	(236)
Gross Amounts Offset	2,349	200
Net Liabilities	(10,950)	(36)
Cash Collateral Offset	0	0
Net Amount Presented	(10,950)	(36)
Trading commodity derivatives
Offsetting Liabilities [Line Items]
Gross  Liabilities	(515)	0
Gross Amounts Offset	280	0
Net Liabilities	(235)	0
Cash Collateral Offset	0	0
Net Amount Presented	$ (235)	$ 0