Derivative Accounting - Derivative Instruments in the Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Assets
Gross Recognized Derivatives	$ 132,229
Liabilities
Amounts  Reported on  Balance Sheets	(42,446)
Commodity Contracts
Assets
Gross Recognized Derivatives	153,261	$ 115,079
Amounts Offset	(21,191)	(4,740)
Net Recognized Derivatives	132,070	110,339
Other	28	50
Amounts  Reported on  Balance Sheets	132,098	110,389
Liabilities
Gross Recognized Derivatives	(56,893)	(7,478)
Amounts Offset	21,191	4,740
Net Recognized Derivatives	(35,702)	(2,738)
Other	(5,835)	(1,635)
Amounts  Reported on  Balance Sheets	(41,537)	(4,373)
Assets and Liabilities
Gross Recognized Derivatives	96,368	107,601
Amounts Offset	0	0
Net Recognized Derivatives	96,368	107,601
Other	(5,807)	(1,585)
Amounts  Reported on  Balance Sheets	90,561	106,016
Commodity Contracts | Current assets
Assets
Gross Recognized Derivatives	103,484	66,777
Amounts Offset	(15,808)	(3,346)
Net Recognized Derivatives	87,676	63,431
Other	28	50
Amounts  Reported on  Balance Sheets	87,704	63,481
Commodity Contracts | Investments and other assets
Assets
Gross Recognized Derivatives	49,777	48,302
Amounts Offset	(5,383)	(1,394)
Net Recognized Derivatives	44,394	46,908
Other	0	0
Amounts  Reported on  Balance Sheets	44,394	46,908
Commodity Contracts | Current liabilities
Liabilities
Gross Recognized Derivatives	(47,670)	(6,084)
Amounts Offset	15,808	3,346
Net Recognized Derivatives	(31,862)	(2,738)
Other	(5,835)	(1,635)
Amounts  Reported on  Balance Sheets	(37,697)	(4,373)
Commodity Contracts | Deferred credits and other
Liabilities
Gross Recognized Derivatives	(9,223)	(1,394)
Amounts Offset	5,383	1,394
Net Recognized Derivatives	(3,840)	0
Other	0	0
Amounts  Reported on  Balance Sheets	$ (3,840)	$ 0