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The amount recovered from insurance. These recoveries reduce costs and losses that are reported as a separate line item under operating expenses.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.3)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

+ Details

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- Definition

The net amount of other operating income and expenses, the components of which are not separately disclosed on the income statement, from items that are associated with the entity's normal revenue producing operations.

+ References

No definition available.

+ Details

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- Definition

Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are not expected to be recovered through revenue sources within one year or the normal operating cycle if longer.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 980

-SubTopic 340

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6499975&loc=d3e44250-110382

+ Details

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Other Accruals (Details Textual) (USD $)	3 Months Ended		9 Months Ended
Other Accruals (Details Textual) (USD $)	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Component of Operating Other Cost and Expense [Line Items]
Regulatory assets	$ 275,581,000		$ 275,581,000		$ 214,912,000
Other (income) expense, net	12,562,000	7,753,000	24,750,000	31,214,000
Eminence Storage Field Abandonment [Member]
Component of Operating Other Cost and Expense [Line Items]
Regulatory assets	92,000,000		92,000,000
Other (income) expense, net	(8,100,000)		(14,500,000)
Insurance Recoveries	$ 3,300,000		$ 15,400,000