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Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
Revenue Recognition (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disaggregation of Revenue [Line Items]
Contract receivable	$ 148,400				$ 112,300				$ 148,400	$ 112,300
Advances from customers	6,681				9,522				6,681	9,522
Revenues	$ 879,112	$ 909,781	$ 856,396	$ 765,439	$ 663,062	$ 610,506	$ 564,245	$ 605,253	3,410,728	$ 2,443,066	$ 1,865,045
Refining
Disaggregation of Revenue [Line Items]
Revenues									3,210,067
Logistics
Disaggregation of Revenue [Line Items]
Revenues									125,743
Retail
Disaggregation of Revenue [Line Items]
Revenues									441,040
Gasoline \| Refining
Disaggregation of Revenue [Line Items]
Revenues									981,090
Gasoline \| Logistics
Disaggregation of Revenue [Line Items]
Revenues									0
Gasoline \| Retail
Disaggregation of Revenue [Line Items]
Revenues									317,434
Distillates \| Refining
Disaggregation of Revenue [Line Items]
Revenues									1,770,381
Distillates \| Logistics
Disaggregation of Revenue [Line Items]
Revenues									0
Distillates \| Retail
Disaggregation of Revenue [Line Items]
Revenues									39,835
Other Refined Products \| Refining
Disaggregation of Revenue [Line Items]
Revenues									458,596
Other Refined Products \| Logistics
Disaggregation of Revenue [Line Items]
Revenues									0
Other Refined Products \| Retail
Disaggregation of Revenue [Line Items]
Revenues									0
Merchandise \| Refining
Disaggregation of Revenue [Line Items]
Revenues									0
Merchandise \| Logistics
Disaggregation of Revenue [Line Items]
Revenues									0
Merchandise \| Retail
Disaggregation of Revenue [Line Items]
Revenues									83,771
Transportation and Terminalling Services \| Refining
Disaggregation of Revenue [Line Items]
Revenues									0
Transportation and Terminalling Services \| Logistics
Disaggregation of Revenue [Line Items]
Revenues									125,743
Transportation and Terminalling Services \| Retail
Disaggregation of Revenue [Line Items]
Revenues									$ 0