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Taxes Other Than Income Taxes (Components Of Taxes Other Than Income Taxes) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Taxes Other Than Income [Line Items] |  |  |  |
Total taxes other than income | $ 20,872 | $ 22,233 | $ 43,751 | $ 47,257
Property [Member] |  |  |  |
Taxes Other Than Income [Line Items] |  |  |  |
Total taxes other than income | 9,085 | 8,535 | 18,156 | 17,411
Gross Receipts, Excise And Franchise [Member] |  |  |  |
Taxes Other Than Income [Line Items] |  |  |  |
Total taxes other than income | 4,600 | 4,297 | 7,486 | 8,600
Payroll [Member] |  |  |  |
Taxes Other Than Income [Line Items] |  |  |  |
Total taxes other than income | 5,405 | 5,009 | 12,366 | 12,520
Regulatory Assessments [Member] |  |  |  |
Taxes Other Than Income [Line Items] |  |  |  |
Total taxes other than income | 2,017 | 1,925 | 4,052 | 3,825
Pumping Fees [Member] |  |  |  |
Taxes Other Than Income [Line Items] |  |  |  |
Total taxes other than income | 1,964 | 1,882 | 3,304 | 3,377
Other [Member] |  |  |  |
Taxes Other Than Income [Line Items] |  |  |  |
Total taxes other than income | $ (2,199) | $ 585 | $ (1,613) | $ 1,524

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- Definition Amount of operating expense for taxes other than income taxes of regulated operation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(2)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 + Details
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