Significant Customers (Details) (Total Revenue [Member])	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended
Jun. 30, 2013	Jun. 30, 2013 Customers	Jun. 30, 2013 QTD [Member] HFC [Member]	Jun. 30, 2012 QTD [Member] HFC [Member]	Jun. 30, 2013 QTD [Member] Alon [Member]	Jun. 30, 2012 QTD [Member] Alon [Member]	Jun. 30, 2013 YTD [Member] HFC [Member]	Jun. 30, 2012 YTD [Member] HFC [Member]	Jun. 30, 2013 YTD [Member] Alon [Member]	Jun. 30, 2012 YTD [Member] Alon [Member]
Revenue, Major Customer [Line Items]
Concentration risk, percentage	95.00%		84.00%	84.00%	11.00%	11.00%	83.00%	83.00%	10.00%	11.00%
Concentration risk, number of significant customers		2

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 21

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13537-108611

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

-SubTopic 10

-Section 50

-Paragraph 20

-URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6404-108592

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 20

-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13531-108611

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

-SubTopic 10

-Section 50

-Paragraph 18

-URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592

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