Derivatives - Schedule of Pre-Tax Gain (Loss) Recognized in the Statement of Operations (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Commodity derivatives | Cost of revenue
Derivative Instruments, Gain (Loss) [Line Items]
Pre-tax gains (losses)	$ (57,159)	$ (504)
J. Aron repurchase obligation derivative | Cost of revenue
Derivative Instruments, Gain (Loss) [Line Items]
Pre-tax gains (losses)	(46,645)	(17,307)
MLC terminal obligation derivative | Cost of revenue
Derivative Instruments, Gain (Loss) [Line Items]
Pre-tax gains (losses)	82,958	(12,942)
Interest rate derivatives | Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Pre-tax gains (losses)	$ (2,020)
Interest rate derivatives | Interest income
Derivative Instruments, Gain (Loss) [Line Items]
Pre-tax gains (losses)		$ 1