Divestitures and Discontinued Operations - Long-Lived Assets Held-for-Sale (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations
Assets held for sale	$ 0	$ 5,052
Terminalling and storage
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations
Assets held for sale	0	3,552
Transportation
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations
Assets held for sale	$ 0	$ 1,500