Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015 operating_segments bbl mi	Mar. 31, 2014	Dec. 31, 2014
Segment Reporting Information [Line Items]
Segment Reporting, Number of Business Segments	2us-gaap_NumberOfReportableSegments
Pipeline, Miles	300wnr_PipelineMiles
Active Storage Capacity	8,100,000wnr_ActiveStorageCapacity
Revenues: Third-party	$ 429,147us-gaap_SalesRevenueServicesNet	$ 628,026us-gaap_SalesRevenueServicesNet
Revenues: Affiliate	178,249us-gaap_RevenueFromRelatedParties	236,584us-gaap_RevenueFromRelatedParties
Operating Income (Loss)	19,473us-gaap_OperatingIncomeLoss	16,761us-gaap_OperatingIncomeLoss
Nonoperating Income (Expense)	(3,947)us-gaap_NonoperatingIncomeExpense	(318)us-gaap_NonoperatingIncomeExpense
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	15,526	16,443
Depreciation and amortization	4,738	4,152
Payments to Acquire Productive Assets	8,562	8,379
Assets	434,010us-gaap_Assets	309,007us-gaap_Assets	378,273us-gaap_Assets
Operating Segments [Member] \| Logistics Segment [Member]
Segment Reporting Information [Line Items]
Revenues: Third-party	623	701
Revenues: Affiliate	34,775	32,056
Operating Income (Loss)	13,240	12,851
Depreciation and amortization	3,661	3,244
Payments to Acquire Productive Assets	5,515	5,904
Assets	158,931	149,522
Operating Segments [Member] \| Wholesale Segment [Member]
Segment Reporting Information [Line Items]
Revenues: Third-party	428,524	627,325
Revenues: Affiliate	143,474	204,528
Operating Income (Loss)	8,989	6,119
Depreciation and amortization	1,077	908
Payments to Acquire Productive Assets	3,047	2,475
Assets	180,085	61,627
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Revenues: Third-party	0	0
Revenues: Affiliate	0	0
Operating Income (Loss)	(2,756)	(2,209)
Depreciation and amortization	0	0
Payments to Acquire Productive Assets	0	0
Assets	$ 94,994	$ 97,858
Crude Oil Storage Tanks [Member] \| Logistics Segment [Member]
Segment Reporting Information [Line Items]
Property, Plant and Equipment, Operated, Number of Significant Assets	33
Active Storage Capacity	620,000
Truck Loading and Unloading Locations [Member] \| Logistics Segment [Member]
Segment Reporting Information [Line Items]
Property, Plant and Equipment, Operated, Number of Significant Assets	8
Pump Station [Member] \| Logistics Segment [Member]
Segment Reporting Information [Line Items]
Property, Plant and Equipment, Operated, Number of Significant Assets	14
Storage Tanks [Member] \| Logistics Segment [Member]
Segment Reporting Information [Line Items]
Active Storage Capacity	7,400,000

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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