Unaudited Condensed Consolidated Statements Of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Costs and Expenses	$ 344,560	$ 331,684	$ 1,011,646	$ 1,122,731
REVENUE	449,171	402,887	1,254,566	1,290,580
Cost of Revenue [Abstract]
Fuel Costs	96,103	96,698	276,661	411,864
Cost of Goods and Services Sold	31,100	35,748	113,836	122,410
OPERATING EXPENSES:
Utilities Operating Expense, Maintenance and Operations	125,849	120,858	350,309	356,386
Depreciation and amortization	85,493	72,021	248,846	212,292
Taxes other than income taxes	6,130	6,359	20,572	19,779
Operating Income (Loss)	104,611	71,203	242,920	167,849
Allowance for equity funds used during construction	1,485	3,134	3,585	7,089
Interest Expense	44,198	34,471	131,681	104,510
Other Nonoperating Income (Expense)	484	(633)	(266)	787
Nonoperating Income (Expense)	(42,229)	(31,970)	(128,362)	(96,634)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	62,382	39,233	114,558	71,215
Income Tax Expense (Benefit)	8,314	3,802	24,833	8,663
Net income	54,068	35,431	89,725	62,552
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest		0	(24,171)	0
Net Income (Loss) Available to Common Stockholders, Basic	54,940	35,431	113,896	62,552
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain (Loss), Net	(115)	0	1,422	0
OPERATING INCOME	104,611	71,203	242,920	167,849
OTHER (EXPENSE) / INCOME, NET:
Allowance for equity funds used during construction	1,485	3,134	3,585	7,089
Interest Expense	(44,198)	(34,471)	(131,681)	(104,510)
Other Nonoperating Income (Expense)	484	(633)	(266)	787
Total other expense, net	(42,229)	(31,970)	(128,362)	(96,634)
INCOME BEFORE INCOME TAX
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	62,382	39,233	114,558	71,215
Income Tax Expense (Benefit)	8,314	3,802	24,833	8,663
NET INCOME	54,068	35,431	89,725	62,552
NET INCOME ATTRIBUTABLE TO COMMON STOCK	$ 54,940	$ 35,431	$ 113,896	$ 62,552