Revenue from Contract with Customers (Performance Obligations) (Details) $ in Thousands |
Jun. 30, 2019
USD ($)
|
|---|---|
| Segment Reporting Information [Line Items] | |
| Revenue, Remaining Performance Obligation, Amount | $ 3,518,351 |
| Refined Products Segment [Member] | |
| Segment Reporting Information [Line Items] | |
| Revenue, Remaining Performance Obligation, Amount | 2,052,375 |
| Crude Oil Pipeline and Terminals Segment [Member] | |
| Segment Reporting Information [Line Items] | |
| Revenue, Remaining Performance Obligation, Amount | 1,244,128 |
| Marine Storage Segment [Member] | |
| Segment Reporting Information [Line Items] | |
| Revenue, Remaining Performance Obligation, Amount | $ 221,848 |