Fair Value Measurements - Fair Value Amounts by Hierarchy Level (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Liabilities
Warehouse stock and other	$ 105,499	$ 70,461
Renewable Identification Numbers “RINs” and Environmental Credits
Liabilities
Warehouse stock and other	60,600	26,700
Fair Value, Measurements, Recurring
Liabilities
Liabilities, fair value disclosure, gross	(398,230)	(185,276)
Derivative, fair value, net	7,380	843
Financial and nonfinancial liabilities, fair value disclosure	(390,850)	(184,433)
Cash collateral	9,900	11,000
Interest rate derivatives \| Fair Value, Measurements, Recurring
Liabilities
Gross Fair Value	0	(2,993)
Effect of Counter-Party Netting	0	0
Net Carrying Value on Balance Sheet	0	(2,993)
Level 1 \| Fair Value, Measurements, Recurring
Liabilities
Liabilities, fair value disclosure, gross	0	(3)
Level 1 \| Interest rate derivatives \| Fair Value, Measurements, Recurring
Liabilities
Gross Fair Value	0	0
Level 2 \| Fair Value, Measurements, Recurring
Liabilities
Liabilities, fair value disclosure, gross	(361,866)	(154,315)
Level 2 \| Interest rate derivatives \| Fair Value, Measurements, Recurring
Liabilities
Gross Fair Value	0	(2,993)
Level 3 \| Fair Value, Measurements, Recurring
Liabilities
Liabilities, fair value disclosure, gross	(36,364)	(30,958)
Level 3 \| Interest rate derivatives \| Fair Value, Measurements, Recurring
Liabilities
Gross Fair Value	0	0
Exchange Traded \| Futures \| Fair Value, Measurements, Recurring
Assets
Gross Fair Value	11,333	2,189
Effect of Counter-Party Netting	(7,380)	(843)
Net Carrying Value on Balance Sheet	3,953	1,346
Liabilities
Gross Fair Value	(7,380)	(843)
Effect of Counter-Party Netting	7,380	843
Net Carrying Value on Balance Sheet	0	0
Exchange Traded \| J. Aron repurchase obligation derivative \| Fair Value, Measurements, Recurring
Liabilities
Gross Fair Value	(26,114)	(20,797)
Effect of Counter-Party Netting	0	0
Net Carrying Value on Balance Sheet	(26,114)	(20,797)
Exchange Traded \| MLC terminal obligation derivative \| Fair Value, Measurements, Recurring
Liabilities
Gross Fair Value	(10,250)	(10,161)
Effect of Counter-Party Netting	0	0
Net Carrying Value on Balance Sheet	(10,250)	(10,161)
Exchange Traded \| Gross environmental credit obligations \| Fair Value, Measurements, Recurring
Liabilities
Environmental credit obligation	(354,486)	(150,482)
Exchange Traded \| Level 1 \| Futures \| Fair Value, Measurements, Recurring
Assets
Gross Fair Value	0	616
Liabilities
Gross Fair Value	0	(3)
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 \| Gross environmental credit obligations \| Fair Value, Measurements, Recurring
Liabilities
Environmental credit obligation	0	0
Exchange Traded \| Level 2 \| Futures \| Fair Value, Measurements, Recurring
Assets
Gross Fair Value	11,333	1,573
Liabilities
Gross Fair Value	(7,380)	(840)
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 \| Gross environmental credit obligations \| Fair Value, Measurements, Recurring
Liabilities
Environmental credit obligation	(354,486)	(150,482)
Exchange Traded \| Level 3 \| Futures \| 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	(26,114)	(20,797)
Exchange Traded \| Level 3 \| MLC terminal obligation derivative \| Fair Value, Measurements, Recurring
Liabilities
Gross Fair Value	(10,250)	(10,161)
Exchange Traded \| Level 3 \| Gross environmental credit obligations \| Fair Value, Measurements, Recurring
Liabilities
Environmental credit obligation	0	0
Exchange Traded \| Fair Value Measured at Net Asset Value Per Share \| Gross environmental credit obligations \| Fair Value, Measurements, Recurring
Liabilities
Environmental 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 the assets less the liabilities of a derivative or group of derivatives.

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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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