Related-Party Transactions, Agreements (Details) (USD $)	12 Months Ended	1 Months Ended																	0 Months Ended
	Dec. 31, 2012	Apr. 30, 2011 Pipeline Transportation Services Agreement option		Apr. 30, 2011 Amended Trucking Transportation Services Agreement option		Apr. 30, 2011 Master Terminalling Agreement option		Apr. 30, 2011 Salt Lake City Storage and Transportation Services Agreement option		Apr. 30, 2011 Salt Lake City Pipeline Transportation Services Agreement option		Apr. 30, 2012 Martinez Marine Terminal Use and Throughput Agreement option		Sep. 30, 2012 Long Beach Berth Access, Use and Throughput Agreement option		Sep. 30, 2012 Los Angeles Short-haul Pipeline Agreement option		Nov. 30, 2012 Anacortes Track Use and Throughput Agreement option	Nov. 15, 2012 Amended Omnibus Agreement	Nov. 15, 2012 Amended Operational Services Agreement	Jul. 02, 2012 Amended Operational Services Agreement	Dec. 31, 2012 Long Beach terminal operating agreement
Related Party Transaction
Length of time to apply shortfall payments (months)	3 months	3 months		3 months		3 months		3 months		3 months		3 months		3 months		3 months		3 months
Term (years)		10 years		5 years		10 years		10 years		10 years		10 years		10 years		10 years		10 years
Renewals, number (options)		2		1		2		2		2		2		2		2		2
Renewals, term (years)		5 years		5 years		5 years		5 years		5 years		5 years		5 years		5 years		5 years
Term Modification Option (years)														20 years		20 years
Refinery Shutdown Notice Period (a) (months)		12 months	[1]	12 months	[1]	12 months	[1]	12 months	[1]	12 months	[1]	12 months	[1]	12 months	[1]	12 months	[1]
Omnibus agreement annual fee																			$ 2,500,000
Indemnification deductible	600,000																		600,000
Inflation escalation																					3.00%
Operational services fee																				2,000,000
Receivables from affiliate related to third-party revenues																						$ 800,000

[1] Fixed minimum volumes remain in effect during routine turnarounds.