Revenue Recognition - Revenue Disaggregation (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	$ 376,138	$ 373,703
Total revenues	445,168	387,256
Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	360,731	360,085
Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	15,407	13,618
Revenues from contracts with customers
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	376,138	373,703
Other
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	69,030	13,553
Marketing
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	360,731	360,085
Total revenues	429,761	373,638
Marketing | Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	360,731	360,085
Marketing | Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	0	0
Marketing | Revenues from contracts with customers
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	360,731	360,085
Marketing | Other
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	69,030	13,553
Transportation
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	15,407	13,618
Total revenues	15,407	13,618
Transportation | Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	0	0
Transportation | Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	15,407	13,618
Transportation | Revenues from contracts with customers
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	15,407	13,618
Transportation | Other
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	$ 0	$ 0