Derivative Financial Instruments - Commodity Contracts, etc. (Details) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
Derivative Financial Instruments
Total asset derivatives	$ 106,706	$ 69,225
Total liability derivatives	(230,651)	(53,472)
Exchange-traded derivative contracts \| Location, Statement of Financial Position, Balance [Axis]: us-gaap:MarginDepositAssets
Derivative Financial Instruments
Total asset derivatives	83,842	52,158
Total liability derivatives	(148,304)	(48,932)
Forward derivative contracts \| Location, Statement of Financial Position, Balance [Axis]: us-gaap:DerivativeAssetsCurrent
Derivative Financial Instruments
Total asset derivatives	22,864	17,067
Forward derivative contracts \| Location, Statement of Financial Position, Balance [Axis]: us-gaap:DerivativeLiabilitiesCurrent
Derivative Financial Instruments
Total liability derivatives	(82,347)	(4,540)
Derivatives Designated as Hedging Instruments
Derivative Financial Instruments
Total asset derivatives		2,408
Total liability derivatives	(6,066)
Derivatives Designated as Hedging Instruments \| Exchange-traded derivative contracts \| Location, Statement of Financial Position, Balance [Axis]: us-gaap:MarginDepositAssets
Derivative Financial Instruments
Total asset derivatives		2,408
Total liability derivatives	(6,066)
Derivatives Not Designated as Hedging Instruments
Derivative Financial Instruments
Total asset derivatives	106,706	66,817
Total liability derivatives	(224,585)	(53,472)
Derivatives Not Designated as Hedging Instruments \| Exchange-traded derivative contracts \| Location, Statement of Financial Position, Balance [Axis]: us-gaap:MarginDepositAssets
Derivative Financial Instruments
Total asset derivatives	83,842	49,750
Total liability derivatives	(142,238)	(48,932)
Derivatives Not Designated as Hedging Instruments \| Forward derivative contracts \| Location, Statement of Financial Position, Balance [Axis]: us-gaap:DerivativeAssetsCurrent
Derivative Financial Instruments
Total asset derivatives	22,864	17,067
Derivatives Not Designated as Hedging Instruments \| Forward derivative contracts \| Location, Statement of Financial Position, Balance [Axis]: us-gaap:DerivativeLiabilitiesCurrent
Derivative Financial Instruments
Total liability derivatives	$ (82,347)	$ (4,540)