CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 196,532	$ 229,279
Adjustments to reconcile net income to net cash provided by operating activities:
Gain on sale relating to BCE	0	(22,988)
Depreciation and amortization including nuclear fuel	492,225	465,546
Deferred fuel and purchased power	(95,850)	(64,220)
Deferred fuel and purchased power amortization	201,035	204,748
Allowance for equity funds used during construction	(28,016)	(19,202)
Deferred income taxes	1,439	339
Deferred investment tax credit	(3,301)	(4,082)
Stock compensation	12,356	10,622
Changes in current assets and liabilities:
Customer and other receivables	(47,587)	(57,802)
Accrued unbilled revenues	(95,424)	(147,165)
Materials, supplies and fossil fuel	(25,497)	(55,498)
Income tax receivable	0	332
Other current assets	(41,851)	(53,124)
Accounts payable	127,970	99,513
Accrued taxes	29,597	34,381
Other current liabilities	1,182	(11,061)
Change in long-term regulatory assets	38,992	18,183
Change in long-term regulatory liabilities	44,860	(4,637)
Change in other long-term assets	(140,504)	(43,489)
Change in operating lease assets	138,439	19,785
Change in other long-term liabilities	(56,639)	(45,456)
Change in operating lease liabilities	(86,632)	(16,866)
Net cash provided by operating activities	663,326	537,138
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(1,332,068)	(1,051,725)
Contributions in aid of construction	107,716	144,329
Proceeds from sale relating to BCE	0	47,778
Allowance for borrowed funds used during construction	(21,661)	(24,177)
Proceeds from nuclear decommissioning trusts sales and other special use funds	919,644	772,375
Investment in nuclear decommissioning trusts and other special use funds	(920,785)	(772,359)
Other	(6,178)	(3,335)
Net cash used for investing activities	(1,253,332)	(887,114)
CASH FLOWS FROM FINANCING ACTIVITIES
Issuance of long-term debt	795,404	1,313,229
Repayment of long-term debt	(800,000)	(675,000)
Short-term borrowing and (repayments) - net	436,549	(78,050)
Short-term debt borrowings under term loan facility	400,000	350,000
Short-term debt repayments under term loan facility	0	(350,000)
Dividends paid on common stock	(210,150)	(196,296)
Common stock equity issuance and (purchases) - net	(6,166)	(4,227)
Capital activities by noncontrolling interests	(10,628)	(10,628)
Net cash provided by financing activities	605,009	349,028
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	15,003	(948)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	3,838	4,955
CASH AND CASH EQUIVALENTS AT END OF PERIOD	$ 18,841	$ 4,007