Capital Expenditure and Stock Repurchase Program, Authorized Amount

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- Definition

Capital Expenditure and Stock Repurchase Program, Number of Capital Programs

+ References

No definition available.

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- Definition

Debt Instrument, Quarterly Installments, Quarterly Amortization Rate

+ References

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- Definition

Disposal Group, Number of Refineries Receiving Crude via Pipeline

+ References

No definition available.

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

+ References

No definition available.

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- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of loans from a bank with maturities initially due after one year or beyond the normal operating cycle if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.16)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.16(a))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19, 20, 22
-Article 5

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

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Subsequent Events (unaudited) (Details)		12 Months Ended
Subsequent Events (unaudited) (Details)	Feb. 05, 2016 USD ($)	Dec. 31, 2015	Feb. 03, 2016 USD ($) refinery	Jan. 25, 2016 USD ($) capital_program
LIBOR [Member]
Subsequent Event [Line Items]
Spread over variable rate (percent)		1.00%
Loans Payable [Member] \| Term Credit Agreement [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Principal amount	$ 100,000,000
Quarterly installment payments, quarterly amortization rate (percent)	5.00%
Loans Payable [Member] \| LIBOR [Member] \| Term Credit Agreement [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Spread over variable rate (percent)	3.00%
January 2016 Share Repurchase Program [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Capital expenditure and stock repurchase program, authorized amount				$ 500,000,000
Number of capital expenditure and stock repurchase programs \| capital_program				2
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] \| CAM Pipeline System [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Consideration			$ 85,000,000
Number of refineries receiving crude oil via pipeline \| refinery			3