Unaudited Condensed Consolidated Statements Of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Costs and Expenses	$ 320,315	$ 356,246	$ 667,086	$ 791,047
REVENUE	397,594	396,307	805,395	887,693
Cost of Revenue [Abstract]
Fuel Costs	77,639	125,436	180,558	315,166
Cost of Goods and Services Sold	44,103	36,772	82,736	86,662
OPERATING EXPENSES:
Utilities Operating Expense, Maintenance and Operations	109,092	117,629	224,460	235,528
Depreciation and amortization	82,920	70,419	163,353	140,271
Taxes other than income taxes	6,547	5,990	14,442	13,420
Operating Income (Loss)	77,279	40,061	138,309	96,646
Allowance for equity funds used during construction	1,269	2,385	2,100	3,955
Interest Expense	43,835	35,196	87,483	70,039
Other Nonoperating Income (Expense)	(1,056)	403	(750)	1,420
Nonoperating Income (Expense)	(43,622)	(32,408)	(86,133)	(64,664)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	33,657	7,653	52,176	31,982
Income Tax Expense (Benefit)	12,610	(353)	16,519	4,861
Net income	21,047	8,006	35,657	27,121
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest	(20,747)	0	(23,299)	0
Net Income (Loss) Available to Common Stockholders, Basic	41,794	8,006	58,956	27,121
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain (Loss), Net	14	0	1,537	0
OPERATING INCOME	77,279	40,061	138,309	96,646
OTHER (EXPENSE) / INCOME, NET:
Allowance for equity funds used during construction	1,269	2,385	2,100	3,955
Interest Expense	(43,835)	(35,196)	(87,483)	(70,039)
Other Nonoperating Income (Expense)	(1,056)	403	(750)	1,420
Total other expense, net	(43,622)	(32,408)	(86,133)	(64,664)
INCOME BEFORE INCOME TAX
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	33,657	7,653	52,176	31,982
Income Tax Expense (Benefit)	12,610	(353)	16,519	4,861
NET INCOME	21,047	8,006	35,657	27,121
NET INCOME ATTRIBUTABLE TO COMMON STOCK	$ 41,794	$ 8,006	$ 58,956	$ 27,121