Long-Term Obligations and Notes Payable Alon Term Loan Credit Facilities (Details) - Secured Debt - USD ($)		12 Months Ended
	Mar. 30, 2018	Dec. 31, 2018	Dec. 31, 2017	Mar. 27, 2014
Debt Instrument [Line Items]
Debt instrument, face amount	$ 700,000,000.0
Periodic payment, principal	$ 1,750,000
Alon Energy Term Loan
Debt Instrument [Line Items]
Debt instrument, face amount				$ 25,000,000.0
New Alon Energy Term Loan
Debt Instrument [Line Items]
Debt instrument, face amount				$ 38,000,000.0
Periodic payment, principal			$ 1,400,000
Along Asphalt Term Loan
Debt Instrument [Line Items]
Debt instrument, face amount		$ 35,000,000.0
Periodic payment, principal		$ 3,900,000