Derivative and Hedging Instruments (Details-4) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 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) [Member]
Change In Derivative Fair Value [Roll Forward]
Beginning balance,	$ 3,009	$ 7,813	$ 5,226	$ 5,094
Unrealized loss (gain)	758	92	2,898	14,395
Realized (loss) gain reclassified to a deferred account	(537)	(1,988)	(2,694)	(8,905)
Realized (loss) gain reclassified to income statement	(1,284)	(900)	(3,484)	(5,567)
Ending balance,	1,946	5,017	1,946	5,017
Other Current Assets [Member]
Change In Derivative Fair Value [Roll Forward]
Beginning balance,	275	455	1,569	2,747
Unrealized loss (gain)	0	0	0	0
Realized (loss) gain reclassified to a deferred account	537	1,988	2,694	8,905
Realized (loss) gain reclassified to income statement	(285)	(1,369)	(3,736)	(10,578)
Ending balance,	$ 527	$ 1,074	$ 527	$ 1,074