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Summary Of Significant Accounting Policies (Utility Taxes) (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2017 | Mar. 31, 2016
Accounting Policies [Abstract] |  |
Utility related taxes | $ 21,584 | $ 18,365
Property taxes | 10,406 | 10,420
Other taxes | 672 | 600
Utilities Operating Expense, Taxes | $ 32,662 | $ 29,385

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- Definition Public Utility Operating Expenses Excise Taxes Collected and Reported Gross in Revenues and Operating Expenses + References No definition available. + Details
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- Definition Public Utility Operating Expenses, Taxes Other than Income, Excise or Property Taxes + References No definition available. + Details
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- Definition A tax based on the assessed value of real estate by the local government. The tax is usually based on the value of property (including the land). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 720 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6419918&loc=d3e35301-107843 + Details
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- Definition Amount of operating expense for taxes other than income taxes of regulated operation. + 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 210.5-03.2(b)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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