Derivative and Hedging Instruments (Details-5) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) Counterparty	Dec. 31, 2021 USD ($)
Counterparties in net liability position or default [Abstract]
Derivative, net liability position of counterparties	$ 0	$ 0
Number of counterparties in default | Counterparty	0
Commodity Contract [Member] | Fuel For Electric Generation Purchased Power [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Realized losses (gains) on income statement	$ (14,806)	$ (3,948)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Utilities Operating Expense, Fuel Used, Utilities Operating Expense, Purchased Power	Utilities Operating Expense, Fuel Used, Utilities Operating Expense, Purchased Power
Commodity Contract [Member] | Cost Of Gas Sold Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Realized losses (gains) on income statement	$ (350)	$ (1,700)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Utilities Operating Expense, Cost of Gas Sold	Utilities Operating Expense, Cost of Gas Sold
Financial Transmission Rights [Member] | Fuel For Electric Generation Purchased Power [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Realized losses (gains) on income statement	$ 583	$ (605)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Utilities Operating Expense, Fuel Used, Utilities Operating Expense, Purchased Power	Utilities Operating Expense, Fuel Used, Utilities Operating Expense, Purchased Power
Financial Transmission Rights [Member] | Cost Of Gas Sold Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Realized losses (gains) on income statement	$ 0	$ 0
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Utilities Operating Expense, Cost of Gas Sold	Utilities Operating Expense, Cost of Gas Sold
Purchased Power Agreement [Member] | Fuel For Electric Generation Purchased Power [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Realized losses (gains) on income statement	$ (2,642)	$ (1,922)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Utilities Operating Expense, Fuel Used, Utilities Operating Expense, Purchased Power	Utilities Operating Expense, Fuel Used, Utilities Operating Expense, Purchased Power
Purchased Power Agreement [Member] | Cost Of Gas Sold Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Realized losses (gains) on income statement	$ 0	$ 0
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Utilities Operating Expense, Cost of Gas Sold	Utilities Operating Expense, Cost of Gas Sold