Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 100,094	$ 42,052
Receivables – related party	45,121	46,496
Receivables	205	781
Prepaid expenses and other	683	720
Total current assets	146,103	90,049
Property and equipment, at cost	1,997,162	1,969,233
Accumulated depreciation	(584,476)	(552,817)
Property and equipment, net	1,412,686	1,416,416
Deferred charges and other assets, net	10,059	10,887
Total assets	1,568,848	1,517,352
Current liabilities:
Accounts payable	14,363	18,633
Accounts payable – related party	7,640	3,944
Accrued liabilities	885	1,007
Accrued liabilities – related party	413	1,128
Accrued interest payable	6,666	2,558
Accrued interest payable – related party	827	911
Taxes other than income taxes payable	5,134	5,141
Total current liabilities	35,928	33,322
Debt	989,380	905,283
Notes payable – related party	285,000	370,000
Other long-term liabilities	3,148	2,950
Commitments and contingencies
Partners’ capital:
Total partners’ capital	255,392	205,797
Total liabilities and partners’ capital	1,568,848	1,517,352
Limited Partner [Member] | Common Unitholders Public [Member]
Partners’ capital:
Common unitholders	607,611	596,047
Total partners’ capital	607,611	596,047
Limited Partner [Member] | Common Unitholder Valero [Member]
Partners’ capital:
Common unitholders	(347,174)	(382,652)
Total partners’ capital	(347,174)	(382,652)
General Partner Valero [Member]
Partners’ capital:
General partner – Valero	(5,045)	(7,598)
Total partners’ capital	$ (5,045)	$ (7,598)