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Derivative and Hedging Instruments (Details-5)
$ in Thousands
3 Months Ended
Mar. 31, 2025
USD ($)
Counterparty
Mar. 31, 2024
USD ($)
Dec. 31, 2024
USD ($)
Counterparties in net liability position or default [Abstract]      
Derivative, net liability position of counterparties $ 0   $ 0
Number of counterparties in default | Counterparty 0    
Commodity Contract [Member] | Fuel For Electric Generation Purchased Power [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Realized losses (gains) on income statement $ 398 $ 2,426  
Commodity Contract [Member] | Cost Of Gas Sold Expense [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Realized losses (gains) on income statement (203) 3,265  
Financial Transmission Rights [Member] | Fuel For Electric Generation Purchased Power [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Realized losses (gains) on income statement 159 (40)  
Financial Transmission Rights [Member] | Cost Of Gas Sold Expense [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Realized losses (gains) on income statement $ 0 $ 0