Derivative and Hedging Instruments (Details-4) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 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
Change In Derivative Fair Value [Roll Forward]
Beginning balance,	$ (60)	$ 5,226
Unrealized loss (gain)	(1,756)	2,140
Realized (loss) gain reclassified to a deferred account	551	(2,157)
Realized (loss) gain reclassified to income statement	(595)	(2,200)
Ending balance,	$ (1,860)	$ 3,009
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
Change In Derivative Fair Value [Roll Forward]
Beginning balance,	$ 388	$ 1,569
Unrealized loss (gain)	0	0
Realized (loss) gain reclassified to a deferred account	(551)	2,157
Realized (loss) gain reclassified to income statement	241	(3,451)
Ending balance,	$ 78	$ 275