Inventories (Schedule Of Major Components Of Inventories) (Details) - USD ($) $ in Thousands	Dec. 31, 2014	Dec. 31, 2013
Inventory Disclosure [Abstract]
Petroleum products	$ 30,108	$ 71,373
Crude oil	7,266	5,380
Caustic soda	2,850	2,679
NaHS	6,603	5,845
Other	2	53
Total	$ 46,829	$ 85,330

Carrying amount of caustic soda as of the balance sheet date.

No definition available.

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- Definition

Carrying amount of sodium hydrosulfide (NaHS) as of the balance sheet date.

+ References

No definition available.

+ Details

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- Definition

Carrying amount as of the balance sheet date of petroleum or crude oil.

+ References

+ Details

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- Definition

Carrying amount as of the balance sheet date of finished goods inventories for petroleum products, crude oil, petrochemical products, and other oil and gas inventories.

+ References

+ Details

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- References

No definition available.

+ Details

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- Definition

Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

+ 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 210.5-02.6(a))

-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 330

-SubTopic 10

-Section 35

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6386567&loc=d3e3927-108312

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section 45

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6676-107765

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- Definition

Amount before valuation and LIFO reserves of other inventory expected to be sold, or consumed within one year or operating cycle, if longer.

+ References

+ Details

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