Leases Operating Lease, Other Disclosure (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2020 |
Jun. 30, 2019 |
Jun. 30, 2020 |
Jun. 30, 2019 |
Dec. 31, 2019 |
|
| Related Party Transaction [Line Items] | |||||
| Total lease expense | $ 13,188 | $ 12,017 | $ 26,077 | $ 24,575 | |
| Current lease liability | 27,251 | 27,251 | $ 26,221 | ||
| Long-term lease liability | 134,274 | 134,274 | 144,023 | ||
| Right-of-use asset | 158,855 | 158,855 | 171,868 | ||
| N/A [Member] | |||||
| Related Party Transaction [Line Items] | |||||
| Total lease expense | 5,709 | 5,776 | 11,699 | 11,425 | |
| Current lease liability | 15,337 | 15,337 | 15,136 | ||
| Long-term lease liability | 77,354 | 77,354 | 81,508 | ||
| Right-of-use asset | 90,021 | 90,021 | 98,268 | ||
| Seabrook Logistics, LLC [Member] | Equity Method Investee [Member] | |||||
| Related Party Transaction [Line Items] | |||||
| Total lease expense | 7,479 | $ 6,241 | 14,378 | $ 13,150 | |
| Current lease liability | 11,914 | 11,914 | 11,085 | ||
| Long-term lease liability | 56,920 | 56,920 | 62,515 | ||
| Right-of-use asset | $ 68,834 | $ 68,834 | $ 73,600 | ||