Revenue Recognition - Revenue Disaggregation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	$ 143,674	$ 407,800	$ 479,647	$ 783,938
Total revenues	152,286	484,433	505,763	929,601
Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	131,529	390,407	451,246	751,138
Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	12,145	17,393	28,401	32,800
Revenues from contracts with customers
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	143,674	407,800	479,647	783,938
Other
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	8,612	76,633	26,116	145,663
Marketing
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	131,529	390,407	451,246	751,138
Total revenues	140,141	467,040	477,362	896,801
Marketing | Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	131,529	390,407	451,246	751,138
Marketing | Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	0	0	0	0
Marketing | Revenues from contracts with customers
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	131,529	390,407	451,246	751,138
Marketing | Other
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	8,612	76,633	26,116	145,663
Transportation
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	12,145	17,393	28,401	32,800
Total revenues	12,145	17,393	28,401	32,800
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	12,145	17,393	28,401	32,800
Transportation | Revenues from contracts with customers
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	12,145	17,393	28,401	32,800
Transportation | Other
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	$ 0	$ 0	$ 0	$ 0