Derivative and Hedging Instruments (Details-4) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
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
Current and Long-Term Regulatory Asset (Liability)
Change In Derivative Fair Value [Roll Forward]
Beginning balance,	$ 1,946	$ 5,017	$ 5,226	$ 5,094
Unrealized loss (gain)	1,768	1,100	4,666	15,495
Realized (loss) gain reclassified to a deferred account	(639)	(1,676)	(3,333)	(10,581)
Realized (loss) gain reclassified to income statement	(1,573)	(1,893)	(5,057)	(7,460)
Ending balance,	1,502	2,548	1,502	2,548
Other Current Assets
Change In Derivative Fair Value [Roll Forward]
Beginning balance,	527	1,074	1,569	2,747
Unrealized loss (gain)	0	0	0	0
Realized (loss) gain reclassified to a deferred account	639	1,676	3,333	10,581
Realized (loss) gain reclassified to income statement	(707)	(2,155)	(4,443)	(12,733)
Ending balance,	$ 459	$ 595	$ 459	$ 595