Acquisitions (Details) (USD $)	3 Months Ended				0 Months Ended
	Mar. 31, 2015		Mar. 31, 2014		Jul. 01, 2014	Dec. 31, 2014		Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 27,710,000		$ 383,859,000	[1]
Receivables from related party	16,161,000					8,499,000	[2]
Prepaid expenses and other	899,000					727,000	[2]
Total current assets	44,770,000					245,805,000	[2]
Property and equipment, at cost	826,782,000					819,104,000	[2],[3]
Accumulated depreciation	(182,007,000)					(174,530,000)	[2],[3]
Property and equipment, net	644,775,000					644,574,000	[2],[3]
Deferred charges and other assets, net	1,303,000					1,385,000	[2]
Total assets	690,848,000					891,764,000	[2]
Current liabilities:
Current portion of capital lease obligations						1,200,000
Accounts payable	3,235,000					4,297,000	[2]
Accrued liabilities	1,610,000					1,054,000	[2]
Taxes other than income taxes	541,000					765,000	[2]
Deferred revenue from related party	146,000					124,000	[2]
Total current liabilities	6,773,000					7,440,000	[2]
Capital lease obligations, net of current portion						1,519,000
Deferred income taxes	614,000					830,000	[2]
Other long-term liabilities	1,078,000					1,065,000	[2]
Partners’ capital:
Common unitholders – public	376,709,000					374,954,000	[2]
Common unitholder – Valero	55,418,000					58,844,000	[2]
Subordinated unitholder – Valero	(107,322,000)					146,804,000	[2]
General partner – Valero	(3,525,000)					4,617,000	[2]
Net investment	0					295,691,000	[2]
Total partners’ capital	321,280,000		996,432,000	[4]		880,910,000	[2],[4]	970,073,000	[4]
Total liabilities and partners’ capital	690,848,000					891,764,000	[2]
Consolidated Statements of Income
Operating revenues – related party	41,886,000		29,489,000	[1],[5]
Costs and expenses:
Operating expenses	17,864,000		16,237,000	[1]
General and administrative expenses	3,565,000		3,097,000	[1]
Depreciation expense	7,488,000		5,916,000	[1]
Total costs and expenses	28,917,000		25,250,000	[1]
Operating income	12,969,000		4,239,000	[1]
Other income, net	111,000		666,000	[1]
Interest and debt expense, net of capitalized interest	(601,000)		(228,000)	[1]
Income before income taxes	12,479,000		4,677,000	[1]
Income tax expense (benefit)	(126,000)		157,000	[1]
Net income	12,605,000		4,520,000	[1]
Less: Net loss attributable to Predecessor	(9,516,000)		(5,962,000)	[1],[4]
Net income attributable to partners	22,121,000		10,482,000	[1]
Cash flows from operating activities:
Net income (loss)	12,605,000		4,520,000	[1]
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation expense	7,488,000		5,916,000	[1]
Deferred income tax expense (benefit)	(249,000)		44,000	[1]
Changes in current assets and current liabilities	(7,755,000)		2,771,000	[1]
Changes in deferred charges and credits and other operating activities, net	418,000		(73,000)	[1]
Net cash provided by operating activities	12,507,000		13,178,000	[1]
Cash flows from investing activities:
Capital expenditures	(4,978,000)		(22,476,000)	[1]
Acquisition of the Houston and St. Charles Terminal Services Business from Valero Energy Corporation	(296,109,000)		0	[1]
Net cash used in investing activities	(301,087,000)		(22,476,000)	[1]
Cash flows from financing activities:
Proceeds from debt borrowings	200,000,000		0	[1]
Proceeds from note payable to related party	160,000,000		0	[1]
Payments of capital lease obligations	(284,000)		(249,000)	[1]
Offering costs	0		(3,223,000)	[1]
Excess purchase price paid to Valero Energy Corporation over the carrying value of the Houston and St. Charles Terminal Services Business	(275,111,000)		0	[1]
Debt issuance costs	0		(1,071,000)	[1]
Cash distributions to unitholders and distribution equivalent right payments	(15,829,000)		(2,174,000)	[1]
Net transfers from Valero Energy Corporation	10,935,000		24,756,000	[1],[5]
Net cash provided by financing activities	79,711,000		18,039,000	[1]
Net increase (decrease) in cash and cash equivalents	(208,869,000)		8,741,000	[1]
Cash and cash equivalents at beginning of period	236,579,000	[2]	375,118,000	[1]
Cash and cash equivalents at end of period	27,710,000		383,859,000	[1]
Acquisitions (Textual)
Units issued in connection with the acquisition of the Houston and St. Charles Terminal Services Business	1,947,041
Valero Energy Partners LP (Previously Reported) [Member]
Current assets:
Cash and cash equivalents	27,710,000		383,859,000
Receivables from related party						8,499,000
Prepaid expenses and other						727,000
Total current assets						245,805,000
Property and equipment, at cost						474,843,000
Accumulated depreciation						(125,960,000)
Property and equipment, net						348,883,000
Deferred charges and other assets, net						1,385,000
Total assets						596,073,000
Current liabilities:
Current portion of capital lease obligations						1,200,000
Accounts payable						4,297,000
Accrued liabilities						1,054,000
Taxes other than income taxes						765,000
Deferred revenue from related party						124,000
Total current liabilities						7,440,000
Capital lease obligations, net of current portion						1,519,000
Deferred income taxes						830,000
Other long-term liabilities						1,065,000
Partners’ capital:
Common unitholders – public						374,954,000
Common unitholder – Valero						58,844,000
Subordinated unitholder – Valero						146,804,000
General partner – Valero						4,617,000
Net investment						0
Total partners’ capital						585,219,000
Total liabilities and partners’ capital						596,073,000
Consolidated Statements of Income
Operating revenues – related party	41,886,000		21,531,000
Costs and expenses:
Operating expenses	10,669,000		5,726,000
General and administrative expenses	3,518,000		2,595,000
Depreciation expense	5,214,000		3,058,000
Total costs and expenses	19,401,000		11,379,000
Operating income	22,485,000		10,152,000
Other income, net	111,000		648,000
Interest and debt expense, net of capitalized interest	(601,000)		(228,000)
Income before income taxes	21,995,000		10,572,000
Income tax expense (benefit)	(126,000)		90,000
Net income	22,121,000		10,482,000
Less: Net loss attributable to Predecessor	0		0
Net income attributable to partners	22,121,000		10,482,000
Cash flows from operating activities:
Net income (loss)	22,121,000		10,482,000
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation expense	5,214,000		3,058,000
Deferred income tax expense (benefit)	(249,000)		8,000
Changes in current assets and current liabilities	(7,755,000)		2,771,000
Changes in deferred charges and credits and other operating activities, net	418,000		3,000
Net cash provided by operating activities	19,749,000		16,322,000
Cash flows from investing activities:
Capital expenditures	(1,285,000)		(864,000)
Acquisition of the Houston and St. Charles Terminal Services Business from Valero Energy Corporation	(296,109,000)
Net cash used in investing activities	(297,394,000)		(864,000)
Cash flows from financing activities:
Proceeds from debt borrowings	200,000,000
Proceeds from note payable to related party	160,000,000
Payments of capital lease obligations	(284,000)		(249,000)
Offering costs			(3,223,000)
Excess purchase price paid to Valero Energy Corporation over the carrying value of the Houston and St. Charles Terminal Services Business	(275,111,000)
Debt issuance costs			(1,071,000)
Cash distributions to unitholders and distribution equivalent right payments	(15,829,000)		(2,174,000)
Net transfers from Valero Energy Corporation	0		0
Net cash provided by financing activities	68,776,000		(6,717,000)
Net increase (decrease) in cash and cash equivalents	(208,869,000)		8,741,000
Cash and cash equivalents at beginning of period	236,579,000		375,118,000
Cash and cash equivalents at end of period	27,710,000		383,859,000
Texas Crude Systems Business [Member] | Adjustments for Acquisitions of Businesses Under Common Control [Member]
Current assets:
Cash and cash equivalents			0
Consolidated Statements of Income
Operating revenues – related party			7,958,000
Costs and expenses:
Operating expenses			1,902,000
General and administrative expenses			437,000
Depreciation expense			843,000
Total costs and expenses			3,182,000
Operating income			4,776,000
Other income, net			18,000
Interest and debt expense, net of capitalized interest			0
Income before income taxes			4,794,000
Income tax expense (benefit)			67,000
Net income			4,727,000
Less: Net loss attributable to Predecessor			4,727,000
Net income attributable to partners			0
Cash flows from operating activities:
Net income (loss)			4,727,000
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation expense			843,000
Deferred income tax expense (benefit)			36,000
Changes in current assets and current liabilities			0
Changes in deferred charges and credits and other operating activities, net			(76,000)
Net cash provided by operating activities			5,530,000
Cash flows from investing activities:
Capital expenditures			(257,000)
Net cash used in investing activities			(257,000)
Cash flows from financing activities:
Payments of capital lease obligations			0
Offering costs			0
Debt issuance costs			0
Cash distributions to unitholders and distribution equivalent right payments			0
Net transfers from Valero Energy Corporation			(5,273,000)
Net cash provided by financing activities			(5,273,000)
Net increase (decrease) in cash and cash equivalents			0
Cash and cash equivalents at beginning of period			0
Cash and cash equivalents at end of period			0
Houston and St. Charles Terminal Services Business [Member] | Adjustments for Acquisitions of Businesses Under Common Control [Member]
Current assets:
Cash and cash equivalents	0		0
Receivables from related party						0
Prepaid expenses and other						0
Total current assets						0
Property and equipment, at cost						344,261,000
Accumulated depreciation						(48,570,000)
Property and equipment, net						295,691,000
Deferred charges and other assets, net						0
Total assets						295,691,000
Current liabilities:
Current portion of capital lease obligations						0
Accounts payable						0
Accrued liabilities						0
Taxes other than income taxes						0
Deferred revenue from related party						0
Total current liabilities						0
Capital lease obligations, net of current portion						0
Deferred income taxes						0
Other long-term liabilities						0
Partners’ capital:
Common unitholders – public						0
Common unitholder – Valero						0
Subordinated unitholder – Valero						0
General partner – Valero						0
Net investment						295,691,000
Total partners’ capital						295,691,000
Total liabilities and partners’ capital						295,691,000
Consolidated Statements of Income
Operating revenues – related party	0		0
Costs and expenses:
Operating expenses	7,195,000		8,609,000
General and administrative expenses	47,000		65,000
Depreciation expense	2,274,000		2,015,000
Total costs and expenses	9,516,000		10,689,000
Operating income	(9,516,000)		(10,689,000)
Other income, net	0		0
Interest and debt expense, net of capitalized interest	0		0
Income before income taxes	(9,516,000)		(10,689,000)
Income tax expense (benefit)	0		0
Net income	(9,516,000)		(10,689,000)
Less: Net loss attributable to Predecessor	(9,516,000)		(10,689,000)
Net income attributable to partners	0		0
Cash flows from operating activities:
Net income (loss)	(9,516,000)		(10,689,000)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation expense	2,274,000		2,015,000
Deferred income tax expense (benefit)	0		0
Changes in current assets and current liabilities	0		0
Changes in deferred charges and credits and other operating activities, net	0		0
Net cash provided by operating activities	(7,242,000)		(8,674,000)
Cash flows from investing activities:
Capital expenditures	(3,693,000)		(21,355,000)
Acquisition of the Houston and St. Charles Terminal Services Business from Valero Energy Corporation	0
Net cash used in investing activities	(3,693,000)		(21,355,000)
Cash flows from financing activities:
Proceeds from debt borrowings	0
Proceeds from note payable to related party	0
Payments of capital lease obligations	0		0
Offering costs			0
Excess purchase price paid to Valero Energy Corporation over the carrying value of the Houston and St. Charles Terminal Services Business	0
Debt issuance costs			0
Cash distributions to unitholders and distribution equivalent right payments	0		0
Net transfers from Valero Energy Corporation	10,935,000		30,029,000
Net cash provided by financing activities	10,935,000		30,029,000
Net increase (decrease) in cash and cash equivalents	0		0
Cash and cash equivalents at beginning of period	0		0
Cash and cash equivalents at end of period	0		0
Majority Shareholder [Member]
Current assets:
Receivables from related party	16,161,000					8,499,000
Majority Shareholder [Member] | Texas Crude Systems Business [Member]
Acquisitions (Textual)
Effective dates of the Acquisitions	Jul. 01, 2014
Payments to acquire businesses, gross					154,000,000
Majority Shareholder [Member] | Houston and St. Charles Terminal Services Business [Member]
Cash flows from investing activities:
Acquisition of the Houston and St. Charles Terminal Services Business from Valero Energy Corporation	(296,100,000)
Cash flows from financing activities:
Proceeds from debt borrowings	200,000,000
Proceeds from note payable to related party	160,000,000
Excess purchase price paid to Valero Energy Corporation over the carrying value of the Houston and St. Charles Terminal Services Business	(275,100,000)
Acquisitions (Textual)
Effective dates of the Acquisitions	Mar. 01, 2015
Consideration transferred for the Houston and St. Charles Terminal Acquisition	671,200,000
Payments to acquire businesses, gross	571,200,000
Consideration transferred for the Houston and St. Charles Terminal Acquisition, units Issued	100,000,000
Payments to acquire businesses, cash on hand	211,200,000
Common Unitholder Valero [Member]
Partners’ capital:
Total partners’ capital	55,418,000		77,629,000	[4]		58,844,000	[4]	75,998,000	[4]
Costs and expenses:
Less: Net loss attributable to Predecessor	0		0	[4]
Net income attributable to partners	4,442,000		2,058,000
Acquisitions (Textual)
Units issued in connection with the acquisition of the Houston and St. Charles Terminal Services Business	1,908,100
Common Unitholder Valero [Member] | Majority Shareholder [Member] | Houston and St. Charles Terminal Services Business [Member]
Acquisitions (Textual)
Units issued in connection with the acquisition of the Houston and St. Charles Terminal Services Business	1,908,100
General Partner Valero [Member]
Partners’ capital:
Total partners’ capital	(3,525,000)		6,333,000	[4]		4,617,000	[4]	6,167,000	[4]
Costs and expenses:
Less: Net loss attributable to Predecessor	0		0	[4]
Net income attributable to partners	$ 852,000		$ 210,000
Acquisitions (Textual)
Units issued in connection with the acquisition of the Houston and St. Charles Terminal Services Business	38,941
General Partner Valero [Member] | Majority Shareholder [Member] | Houston and St. Charles Terminal Services Business [Member]
Acquisitions (Textual)
Units issued in connection with the acquisition of the Houston and St. Charles Terminal Services Business	38,941

[1] Prior period financial information has been retrospectively adjusted for the acquisitions of the Texas Crude Systems Business and the Houston and St. Charles Terminal Services Business from Valero Energy Corporation. See Notes 1 and 3.

[2] Prior period financial information has been retrospectively adjusted for the acquisition of the Houston and St. Charles Terminal Services Business from Valero Energy Corporation. See Notes 1 and 3.

[3] Prior period financial information has been retrospectively adjusted for the Houston and St. Charles Terminal Acquisition.

[4] Prior period financial information as of December 31, 2013 and March 31,2014 has been retrospectively adjusted for the acquisitions of the Texas Crude Systems Business and the Houston and St. Charles Terminal Services Business from Valero Energy Corporation. Prior period financial information as of December 31, 2014 has been retrospectively adjusted for the acquisition of the Houston and St. Charles Terminal Services Business from Valero Energy Corporation. See Notes 1 and 3.

[5] Prior period financial information has been retrospectively adjusted for the Acquisitions.