Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Decrease (increase) in current assets:
Receivables – related party	$ 1,115	$ (827)
Receivables	340	0
Prepaid expenses and other	(355)	(199)
Increase (decrease) in current liabilities:
Accounts payable	(171)	412
Accounts payable – related party	(31)	(2,007)
Accrued liabilities	122	101
Accrued liabilities – related party	(116)	118
Accrued interest payable	5,525	38
Accrued interest payable – related party	681	62
Taxes other than income taxes	(706)	(6)
Deferred revenue – related party	(2,036)	322
Changes in current assets and current liabilities	4,368	(1,986)	[1]
Other Noncash Activities
Changes in capital expenditures included in accounts payable	2,583	2,953
Noncash capital contributions from Valero for projects related to acquisitions	9,220	7,390
Amortization of ATM deferred offering costs	(47)	0
Reconciliation of Net Transfers from/to Valero
Net transfers from Valero per statements of cash flows	0	6,327	[1]
Cash Flows Related to Interest Paid
Interest paid	1,908	2,502
Majority Shareholder [Member]
Other Noncash Activities
Noncash capital contributions from Valero for projects related to acquisitions	9,220	7,390
Change in accrued capital expenditures transferred from Valero	0	(87)	[2]
Reconciliation of Net Transfers from/to Valero
Net transfers from Valero per statements of partners’ capital	0	6,414	[2]
Less: Noncash transfers from Valero	0	87	[2]
Net transfers from Valero per statements of cash flows	0	6,327	[2]
Majority Shareholder [Member] | Construction-in-Progress [Member]
Other Noncash Activities
Change in accrued capital expenditures transferred from Valero	0	(87)
Reconciliation of Net Transfers from/to Valero
Less: Noncash transfers from Valero	$ 0	$ 87

[1] Financial information has been retrospectively adjusted for the acquisitions of the McKee Terminal Services Business and the Meraux and Three Rivers Terminal Services Business from Valero Energy Corporation. See Notes 1 and 2.

[2] Financial information has been retrospectively adjusted for the acquisitions of the McKee Terminal Services Business and the Meraux and Three Rivers Terminal Services.