Derivative and Hedging Instruments (Details-4) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Current And Long Term Reg Asset Liability [Member]
Derivative Unrealized Realized Gains Losses On Balance Sheet [Line Items]
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Utilities Operating Expense, Purchased Power, Utilities Operating Expense, Cost of Gas Sold	Utilities Operating Expense, Purchased Power, Utilities Operating Expense, Cost of Gas Sold
Change In Derivative Fair Value [Roll Forward]
Unrealized loss (gain)	$ 3,149	$ 5,041
Realized (loss) gain reclassified to a deferred account	(153)	(3,821)
Realized (loss) gain reclassified to income statement	$ (1,522)	$ (6,506)
Derivatives Other Current Assets [Member]
Derivative Unrealized Realized Gains Losses On Balance Sheet [Line Items]
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Utilities Operating Expense, Purchased Power, Utilities Operating Expense, Cost of Gas Sold	Utilities Operating Expense, Purchased Power, Utilities Operating Expense, Cost of Gas Sold
Change In Derivative Fair Value [Roll Forward]
Unrealized loss (gain)	$ 0	$ 0
Realized (loss) gain reclassified to a deferred account	153	3,821
Realized (loss) gain reclassified to income statement	$ 27	$ (5,002)