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Jointly Owned Electric Facilities - Additional Information (Details) | Dec. 31, 2020
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Jointly Owned Utility Plant Net Ownership Amount [Abstract] |
Owners percentage interest | 15.00%

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- Definition The proportionate share of interest (percent) in a jointly owned utility plant. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 360 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 10.C) -URI http://asc.fasb.org/extlink&oid=115995737&loc=d3e659983-123033 + Details
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