Derivative and Hedging Instruments (Details-4) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Current and Long-Term Regulatory Asset (Liability)
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	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]
Beginning balance,	$ (1,860)	$ 3,009	$ (60)	$ 5,226
Unrealized loss (gain)	2,118	758	362	2,898
Realized (loss) gain reclassified to a deferred account	(288)	(537)	263	(2,694)
Realized (loss) gain reclassified to income statement	(667)	(1,284)	(1,262)	(3,484)
Ending balance,	$ (697)	$ 1,946	$ (697)	$ 1,946
Other Current Assets
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	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]
Beginning balance,	$ 78	$ 275	$ 388	$ 1,569
Unrealized loss (gain)	0	0	0	0
Realized (loss) gain reclassified to a deferred account	288	537	(263)	2,694
Realized (loss) gain reclassified to income statement	30	(285)	271	(3,736)
Ending balance,	$ 396	$ 527	$ 396	$ 527