Consolidated Balance Sheets (unaudited) (Parenthetical) - shares	Mar. 31, 2017	Dec. 31, 2016
Limited Partner [Member] | Common Unitholders Public [Member]
Partners’ capital:
Limited partner, units outstanding (shares)	22,478,290	21,738,692
Limited Partner [Member] | Common Unitholder Valero [Member]
Partners’ capital:
Limited partner, units outstanding (shares)	45,687,271	45,687,271
General Partner Valero [Member]
Partners’ capital:
General partner – Valero, units outstanding (shares)	1,391,133	1,375,721