Revenue Recognition - Revenue Disaggregation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	$ 476,472	$ 143,674	$ 795,415	$ 479,647
Total revenues	486,744	152,286	812,235	505,763
Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	452,820	131,529	750,295	451,246
Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	23,652	12,145	45,120	28,401
Revenues from contracts with customers
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	476,472	143,674	795,415	479,647
Other
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	10,272	8,612	16,820	26,116
Crude Oil Marketing
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	452,820	131,529	750,295	451,246
Total revenues	463,092	140,141	767,115	477,362
Crude Oil Marketing | Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	452,820	131,529	750,295	451,246
Crude Oil Marketing | Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	0	0	0	0
Crude Oil Marketing | Revenues from contracts with customers
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	452,820	131,529	750,295	451,246
Crude Oil Marketing | Other
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	10,272	8,612	16,820	26,116
Transportation
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	23,497	12,145	44,732	28,401
Total revenues	23,497	12,145	44,732	28,401
Transportation | Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	0	0	0	0
Transportation | Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	23,497	12,145	44,732	28,401
Transportation | Revenues from contracts with customers
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	23,497	12,145	44,732	28,401
Transportation | Other
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	0	0	0	0
Pipeline and storage
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	155	0	388	0
Total revenues	155	0	388	0
Pipeline and storage | Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	0	0	0	0
Pipeline and storage | Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	155	0	388	0
Pipeline and storage | Revenues from contracts with customers
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	155	0	388	0
Pipeline and storage | Other
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	$ 0	$ 0	$ 0	$ 0