Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disaggregation of Revenue [Line Items]
Revenues	$ 715,505	$ 689,981	$ 515,301	$ 1,204,083	$ 1,399,134	$ 1,401,638	$ 1,409,409	$ 1,191,335	$ 3,124,870	$ 5,401,516	$ 3,410,728
Refining
Disaggregation of Revenue [Line Items]
Revenues									2,886,701	5,167,942	3,210,067
Logistics
Disaggregation of Revenue [Line Items]
Revenues									180,909	199,226	125,743
Retail
Disaggregation of Revenue [Line Items]
Revenues									363,713	458,889	441,040
Gasoline | Refining
Disaggregation of Revenue [Line Items]
Revenues									846,294	1,416,706	981,090
Gasoline | Logistics
Disaggregation of Revenue [Line Items]
Revenues									0	0	0
Gasoline | Retail
Disaggregation of Revenue [Line Items]
Revenues									241,003	326,304	317,434
Distillates | Refining
Disaggregation of Revenue [Line Items]
Revenues									1,256,618	2,503,981	1,770,381
Distillates | Logistics
Disaggregation of Revenue [Line Items]
Revenues									0	0	0
Distillates | Retail
Disaggregation of Revenue [Line Items]
Revenues									30,739	40,189	39,835
Other Refined Products | Refining
Disaggregation of Revenue [Line Items]
Revenues									753,591	1,242,401	458,596
Other Refined Products | Logistics
Disaggregation of Revenue [Line Items]
Revenues									0	0	0
Other Refined Products | Retail
Disaggregation of Revenue [Line Items]
Revenues									0	0	0
Merchandise | Refining
Disaggregation of Revenue [Line Items]
Revenues									0	0	0
Merchandise | Logistics
Disaggregation of Revenue [Line Items]
Revenues									0	0	0
Merchandise | Retail
Disaggregation of Revenue [Line Items]
Revenues									90,173	90,480	83,771
Transportation and terminalling services | Refining
Disaggregation of Revenue [Line Items]
Revenues									0	0	0
Transportation and terminalling services | Logistics
Disaggregation of Revenue [Line Items]
Revenues									180,909	199,226	125,743
Transportation and terminalling services | Retail
Disaggregation of Revenue [Line Items]
Revenues									0	0	$ 0
Other revenue | Refining
Disaggregation of Revenue [Line Items]
Revenues									30,198	4,854
Other revenue | Logistics
Disaggregation of Revenue [Line Items]
Revenues									0	0
Other revenue | Retail
Disaggregation of Revenue [Line Items]
Revenues									$ 1,798	$ 1,916