Related Party Transactions (Details) $ in Thousands	1 Months Ended	2 Months Ended	3 Months Ended
	Oct. 31, 2014 bbl $ / gal	Dec. 31, 2013 USD ($)	Mar. 31, 2017 USD ($) mi bbl	Mar. 31, 2016 USD ($) bbl	Dec. 31, 2015 bbl	Dec. 31, 2016 USD ($)	Sep. 30, 2016 mi bbl	Oct. 30, 2015 bbl
Related Party Transaction [Line Items]
Active Storage Capacity			12,400,000
Deferred revenue - affiliate | $			$ 19,496			$ 19,132
Related Party Transaction, Expenses from Transactions with Related Party | $			20,524	$ 18,081
Operating Leases, Rent Expense | $			$ 2,000	2,400
Pipeline, Miles | mi			705
Northern Tier Energy LP [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Expenses from Transactions with Related Party | $			$ 200	$ 100
Maximum [Member] | Ground Lease and Access Agreements [Member] | Western Refining, Inc. [Member]
Related Party Transaction [Line Items]
Operating Leases, Rent Expense | $		$ 100
Product Supply Agreement [Member]
Related Party Transaction [Line Items]
Long-term Purchase Commitment, Minimum Quantity Required				79,000
Fuel Distribution and Supply Agreement [Member]
Related Party Transaction [Line Items]
Deferred revenue - affiliate | $						$ 0
Long-term Purchase Commitment, Minimum Quantity Required	645,000
Profit Margin, per Gallon | $ / gal	0.03
Crude Oil Trucking Transportation Services Agreement [Member]
Related Party Transaction [Line Items]
Long-term Purchase Commitment, Minimum Quantity Required	1,525,000
Pipelines and related assets | TexNew Mex 16 inch pipeline [Member]
Related Party Transaction [Line Items]
Active Storage Capacity								80,000
St. Paul Park Logistics Assets [Member]
Related Party Transaction [Line Items]
Pipeline, Miles | mi							2.5
St. Paul Park Logistics Assets [Member] | Pipelines and related assets
Related Party Transaction [Line Items]
Pipeline Segments							2
St. Paul Park Logistics Assets [Member] | Pipelines, Inactive [Member]
Related Party Transaction [Line Items]
Pipeline Segments							1
St. Paul Park Logistics Assets [Member] | Crude Oil Storage Tanks [Member]
Related Party Transaction [Line Items]
Active Storage Capacity							4,000,000
TexNew Mex 16 inch pipeline [Member]
Related Party Transaction [Line Items]
Long-term Purchase Commitment, Minimum Volume Required					13,000
TexNew Mex 16 inch pipeline [Member] | Western Refining, Inc. [Member]
Related Party Transaction [Line Items]
Economic Rights, Crude Oil Throughput, Percent								80.00%