Derivative Instruments And Hedging Activities (Narrative) (Details) - Jun. 30, 2015 - USD ($) $ in Millions	Total	Total
Derivative [Line Items]
Net unrealized gain in accumulated other comprehensive income related to accounting hedges	$ 13.3	$ 13.3
Net unrealized gain to be transferred from accumulated other comprehensive income to statement of income		(9.3)
HEP [Member] \| Interest Rate Contract [Member]
Derivative [Line Items]
Credit agreement advance	305.0	305.0
Credit agreement advance maturing in 2016	$ 155.0	$ 155.0
Fixed interest rate	0.74%	0.74%
Rate added to fixed base rate	2.00%	2.00%
Effective interest rate on debt	2.74%	2.74%
Credit agreement advance maturing in 2017	$ 150.0	$ 150.0
HEP [Member] \| Current Interest Rate Swap [Member]
Derivative [Line Items]
Fixed interest rate	0.99%	0.99%
Effective interest rate on debt	2.99%	2.99%

Credit Agreement Advance

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- Definition

Credit agreement advance maturing 2016

+ References

No definition available.

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- Definition

Credit agreement advance maturing in 2017

+ References

No definition available.

+ Details

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- Definition

The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (c)

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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

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

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- Definition

Amount as of the balance sheet date of the unamortized adjustment to the carrying value of an interest-bearing hedged item made under an effective fair value hedge that is amortized upon discontinuation of the fair value hedge.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 25

-Section 35

-Paragraph 9

-URI http://asc.fasb.org/extlink&oid=56949341&loc=d3e75592-113984

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- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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