Debt Revolving Credit Facility (Details) - USD ($) $ in Thousands		3 Months Ended
	Oct. 16, 2013	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014	Feb. 11, 2015
Line of Credit Facility [Line Items]
Repayments of Long-term Lines of Credit		$ 15,000		$ 269,000
Revolving Credit Facility [Member] | Revolving Credit Agreement - WNRL [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Current Borrowing Capacity	$ 300,000
Line of Credit Facility, Difference Between Current Borrowing Capacity and Maximum Borrowing Capacity	200,000
Line of Credit Facility, Maximum Borrowing Capacity	500,000
Debt Instrument, Interest Rate, Stated Percentage		2.69%
Proceeds from Lines of Credit			$ 145,000		$ 269,000
Line of Credit Facility, Remaining Borrowing Capacity		$ 169,300
Letters of Credit Outstanding, Amount		700
Long-term Line of Credit						$ 269,000
Deferred Finance Costs, Noncurrent, Net		1,300	$ 1,500
Revolving Credit Facility [Member] | Standby Letters of Credit [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	25,000
Long-term Line of Credit		0
Revolving Credit Facility [Member] | Loans [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 10,000
Long-term Line of Credit		$ 130,000
Base Rate [Member] | Minimum [Member] | Revolving Credit Facility [Member] | Revolving Credit Agreement - WNRL [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	0.75%
Base Rate [Member] | Maximum [Member] | Revolving Credit Facility [Member] | Revolving Credit Agreement - WNRL [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	1.75%
London Interbank Offered Rate (LIBOR) [Member] | Revolving Credit Facility [Member] | Revolving Credit Agreement - WNRL [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Description of Variable Rate Basis	LIBOR
London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member] | Revolving Credit Facility [Member] | Revolving Credit Agreement - WNRL [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.75%
London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member] | Revolving Credit Facility [Member] | Revolving Credit Agreement - WNRL [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate	2.75%
Revolving Credit Agreement - WNRL [Member] | Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Interest Rate, Effective Percentage		2.76%