Debt Revolving Credit Facility (Details) - Revolving Credit Facility [Member] - USD ($) $ in Millions		3 Months Ended
	Sep. 14, 2016	Sep. 30, 2016	Dec. 31, 2015	Mar. 31, 2017	Dec. 31, 2016	Sep. 15, 2016
Revolving Credit Agreement - WNRL [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Current Borrowing Capacity						$ 500.0
Line of Credit Facility, Difference Between Current Borrowing Capacity and Maximum Borrowing Capacity						150.0
Line of Credit Facility, Maximum Borrowing Capacity						650.0
Debt Instrument, Interest Rate, Stated Percentage				4.75%
Line of Credit Facility, Increase (Decrease), Net	$ 200.0
Proceeds from Lines of Credit		$ 20.3	$ 145.0
Line of Credit Facility, Remaining Borrowing Capacity				$ 479.0
Letters of Credit Outstanding, Amount				0.7
Deferred Finance Costs, Noncurrent, Net				1.8	$ 2.0	1.2
Standby Letters of Credit [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity						25.0
Long-term Line of Credit				0.0
Loans [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity						$ 10.0
Long-term Line of Credit				$ 20.3
Minimum [Member] | Revolving Credit Agreement - WNRL [Member]
Line of Credit Facility [Line Items]
Ratio of Indebtedness to Net Capital						4.50
Maximum [Member] | Revolving Credit Agreement - WNRL [Member]
Line of Credit Facility [Line Items]
Ratio of Indebtedness to Net Capital						5.00
Base Rate [Member] | Minimum [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 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 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 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 Agreement - WNRL [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate	2.75%
Revolving Credit Agreement - WNRL [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Interest Rate, Effective Percentage				3.75%