Income Taxes (Details)		6 Months Ended
		Jun. 30, 2024	Jun. 30, 2023
Income Tax Disclosure [Abstract]
Federal statutory rate, percent		21.00%	21.00%
State tax (net of federal tax effect), percent		2.50%	2.20%
Wind PTCs, percent	[1]	(53.20%)	(65.20%)
Plant regulatory differences, percent	[2]	(4.60%)	(3.50%)
Other tax credits, percent		0.30%	0.30%
Other (net), percent		0.10%	0.00%
Effective income tax rate, percent		(33.90%)	(45.20%)

[1] Wind PTCs net of estimated transfer discounts. Gross wind PTCs are credited to customers (reduction to revenue) and do not materially impact net income.

[2] Plant regulatory differences primarily relate to the credit of excess deferred taxes to customers. Income tax benefits associated with the credit are offset by corresponding revenue reductions.