Derivatives - Schedule of Derivatives Fair Value Amounts (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Prepaid and other current assets
Derivative Instruments, Gain (Loss) [Line Items]
Cash collateral	$ 10,300	$ 2,700
Other Current Assets
Derivative Instruments, Gain (Loss) [Line Items]
Cash collateral	9,500	8,300
Commodity Contract | Prepaid and other current assets
Derivative Instruments, Gain (Loss) [Line Items]
Asset (Liability)	2,075	4,973
Commodity Contract | Other accrued liabilities
Derivative Instruments, Gain (Loss) [Line Items]
Asset (Liability)	(5,534)	(700)
Interest rate derivatives | Prepaid and other current assets
Derivative Instruments, Gain (Loss) [Line Items]
Asset (Liability)	0	191
Interest rate derivatives | Other accrued liabilities
Derivative Instruments, Gain (Loss) [Line Items]
Asset (Liability)	(314)	0
Interest rate derivatives | Other liabilities
Derivative Instruments, Gain (Loss) [Line Items]
Asset (Liability)	(1,113)	0
Over the Counter | J. Aron repurchase obligation derivative | Obligations under inventory financing agreements
Derivative Instruments, Gain (Loss) [Line Items]
Asset (Liability)	173	4,085
Over the Counter | MLC terminal obligation derivative | Obligations under inventory financing agreements
Derivative Instruments, Gain (Loss) [Line Items]
Asset (Liability)	$ (14,717)	$ 0