Acquisitions - Acquisition of Pipeline and Related Terminal Facility Assets - Summary of Allocation of Purchase Price (Details) - USD ($) $ in Thousands	Oct. 22, 2020	Jun. 26, 2020
Victoria Express Pipeline, LLC (VEX)
Business Acquisition [Line Items]
Accounts receivable and other current assets	$ 80
Linefill and base gas	1,013
Property and equipment — Pipeline and related terminal facilities	20,542
Accounts payable and other accrued liabilities	(598)
Total purchase price	$ 21,037
Comcar
Business Acquisition [Line Items]
Property and equipment — tractors and trailers		$ 5,901
Materials and supplies		87
Intangible assets — customer relationships		3,175
Total purchase price		$ 9,163