Derivative and Hedging Instruments (Details-4) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 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
Current and Long-Term Regulatory Asset (Liability) [Member]
Change In Derivative Fair Value [Roll Forward]
Beginning balance,	$ 5,226	$ 5,094
Unrealized loss (gain)	2,140	14,303
Realized (loss) gain reclassified to a deferred account	(2,157)	(6,917)
Realized (loss) gain reclassified to income statement	(2,200)	(4,667)
Ending balance,	3,009	7,813
Other Current Assets [Member]
Change In Derivative Fair Value [Roll Forward]
Beginning balance,	1,569	2,747
Unrealized loss (gain)	0	0
Realized (loss) gain reclassified to a deferred account	2,157	6,917
Realized (loss) gain reclassified to income statement	(3,451)	(9,209)
Ending balance,	$ 275	$ 455