Fair Value Measurements - Derivative Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Liabilities
Gross fair value and net carrying value on balance sheet	$ 0	$ (8,206)
Warehouse stock and other	70,461	63,149
Renewable Identification Numbers “RINs” and Environmental Credits
Liabilities
Warehouse stock and other	26,700	19,100
Fair Value, Measurements, Recurring
Liabilities
Liabilities, Fair Value Disclosure, Gross	(185,276)	(57,082)
Derivative, fair value, net	843	4,595
Financial and nonfinancial liabilities, fair value disclosure	(184,433)	(52,487)
Cash collateral	11,000	19,800
Level 1 \| Fair Value, Measurements, Recurring
Liabilities
Liabilities, Fair Value Disclosure, Gross	(3)	(10,129)
Level 2 \| Fair Value, Measurements, Recurring
Liabilities
Liabilities, Fair Value Disclosure, Gross	(154,315)	(24,203)
Level 3 \| Fair Value, Measurements, Recurring
Liabilities
Liabilities, Fair Value Disclosure, Gross	(30,958)	(22,750)
Over the Counter \| Fair Value, Measurements, Recurring
Liabilities
Gross fair value and net carrying value on balance sheet		(8,206)
Effect of Counter-party Netting		0
Net Carrying Value on Balance Sheet		(8,206)
Over the Counter \| Level 1 \| Fair Value, Measurements, Recurring
Liabilities
Gross fair value and net carrying value on balance sheet		0
Over the Counter \| Level 2 \| Fair Value, Measurements, Recurring
Liabilities
Gross fair value and net carrying value on balance sheet		0
Over the Counter \| Level 3 \| Fair Value, Measurements, Recurring
Liabilities
Gross fair value and net carrying value on balance sheet		(8,206)
Exchange Traded \| Commodity derivatives \| Fair Value, Measurements, Recurring
Assets
Gross Fair Value	2,189	6,670
Effect of Counter-party Netting	(843)	(4,595)
Net Carrying Value on Balance Sheet	1,346	2,075
Liabilities
Gross Fair Value	(843)	(10,129)
Effect of Counter-party Netting	843	4,595
Net Carrying Value on Balance Sheet	0	(5,534)
Exchange Traded \| J. Aron repurchase obligation derivative \| Fair Value, Measurements, Recurring
Liabilities
Gross Fair Value	(20,797)	173
Effect of Counter-party Netting	0	0
Net Carrying Value on Balance Sheet	(20,797)	173
Exchange Traded \| MLC terminal obligation derivative \| Fair Value, Measurements, Recurring
Liabilities
Gross Fair Value	(10,161)	(14,717)
Effect of Counter-party Netting	0	0
Net Carrying Value on Balance Sheet	(10,161)	(14,717)
Exchange Traded \| Interest rate derivatives \| Fair Value, Measurements, Recurring
Liabilities
Gross Fair Value	(2,993)	(1,427)
Effect of Counter-party Netting	0	0
Net Carrying Value on Balance Sheet	(2,993)	(1,427)
Exchange Traded \| Gross environmental credit obligations \| Fair Value, Measurements, Recurring
Liabilities
Enviromental credit obligation	(150,482)	(22,776)
Exchange Traded \| Level 1 \| Commodity derivatives \| Fair Value, Measurements, Recurring
Assets
Gross Fair Value	616	4,595
Liabilities
Gross Fair Value	(3)	(10,129)
Exchange Traded \| Level 1 \| J. Aron repurchase obligation derivative \| Fair Value, Measurements, Recurring
Liabilities
Gross Fair Value	0	0
Exchange Traded \| Level 1 \| MLC terminal obligation derivative \| Fair Value, Measurements, Recurring
Liabilities
Gross Fair Value	0	0
Exchange Traded \| Level 1 \| Interest rate derivatives \| Fair Value, Measurements, Recurring
Liabilities
Gross Fair Value	0	0
Exchange Traded \| Level 1 \| Gross environmental credit obligations \| Fair Value, Measurements, Recurring
Liabilities
Enviromental credit obligation	0	0
Exchange Traded \| Level 2 \| Commodity derivatives \| Fair Value, Measurements, Recurring
Assets
Gross Fair Value	1,573	2,075
Liabilities
Gross Fair Value	(840)	0
Exchange Traded \| Level 2 \| J. Aron repurchase obligation derivative \| Fair Value, Measurements, Recurring
Liabilities
Gross Fair Value	0	0
Exchange Traded \| Level 2 \| MLC terminal obligation derivative \| Fair Value, Measurements, Recurring
Liabilities
Gross Fair Value	0	0
Exchange Traded \| Level 2 \| Interest rate derivatives \| Fair Value, Measurements, Recurring
Liabilities
Gross Fair Value	(2,993)	(1,427)
Exchange Traded \| Level 2 \| Gross environmental credit obligations \| Fair Value, Measurements, Recurring
Liabilities
Enviromental credit obligation	(150,482)	(22,776)
Exchange Traded \| Level 3 \| Commodity derivatives \| Fair Value, Measurements, Recurring
Assets
Gross Fair Value	0	0
Liabilities
Gross Fair Value	0	0
Exchange Traded \| Level 3 \| J. Aron repurchase obligation derivative \| Fair Value, Measurements, Recurring
Liabilities
Gross Fair Value	(20,797)	173
Exchange Traded \| Level 3 \| MLC terminal obligation derivative \| Fair Value, Measurements, Recurring
Liabilities
Gross Fair Value	(10,161)	(14,717)
Exchange Traded \| Level 3 \| Interest rate derivatives \| Fair Value, Measurements, Recurring
Liabilities
Gross Fair Value	0	0
Exchange Traded \| Level 3 \| Gross environmental credit obligations \| Fair Value, Measurements, Recurring
Liabilities
Enviromental credit obligation	0	0
Exchange Traded \| Fair Value Measured at Net Asset Value Per Share \| Gross environmental credit obligations \| Fair Value, Measurements, Recurring
Liabilities
Enviromental credit obligation	$ 0	$ 0

Liabilities, Fair Value Disclosure, Gross

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Fair value portion of accrued expenses.

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Fair value of liability associated with financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.

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Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Fair value of the assets less the liabilities of a derivative or group of derivatives.

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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Amount of right to receive cash collateral under master netting arrangements offset against derivative liabilities.

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Fair value of asset associated with financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.

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Carrying amount as of the balance sheet date of finished goods inventories for petroleum products, crude oil, petrochemical products, and other oil and gas inventories.

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Fair value of financial and nonfinancial obligations.

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Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price.

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