v3.25.1
Investments (Schedule Of Investments) (Details) - USD ($)
$ in Thousands
Mar. 31, 2025
Dec. 31, 2024
Schedule of Invested Securities [Line Items]    
Equity, Cost $ 2,141 $ 2,141
Equity Method Investment Gross Unrealized Gains 2,182 2,164
Equity, Fair Value 4,323 4,305
Other, Cost 2,202 2,224
Other Gross Unrealized Gains 2,197 2,189
Other, Fair Value 4,399 4,413
Total Other 2,217 2,249
Total Investments 291,041 294,890
Total Nuclear decommissioning trust 288,824 292,641
Nuclear Decommissioning Trust [Member]    
Schedule of Invested Securities [Line Items]    
Investments, Debt securities, Cost 109,543 108,556
Investments, Debt securities, Gross Unrealized Losses (13,327) (14,958)
Investments, Debt securities 96,216 93,598
Investments, Equity securities, Cost 95,371 95,731
Investments, Equity securities, Gross Unrealized Gains 103,146 107,329
Investments, Equity securities, Gross Unrealized Losses (6,397) (4,067)
Investments, Equity securities 192,120 198,993
Investments, Cash and other 488 50
Investments, Cost 205,402 204,337
Investments, Gross Unrealized Gains 103,146 107,329
Investments, Gross Unrealized Losses (19,724) (19,025)
Total Nuclear decommissioning trust 288,824 292,641
Other [Member]    
Schedule of Invested Securities [Line Items]    
Investments, Equity securities, Cost 61 83
Investments, Equity securities, Gross Unrealized Gains 15 25
Total Investments $ 76 $ 108