Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Cash flows from operating activities:
Net income	$ 5.0	$ 12.8
Adjustments to reconcile net income to net cash provided by / (used in) operating activities:
Depreciation and amortization	58.8	43.7
Amortization of Debt Issuance Costs and Discounts	1.5	1.7
Deferred income taxes	3.9	12.0
Gain (Loss) on Disposition of Business, Including Discontinued Operation	0.0	1.3
Public Utilities, Allowance for Funds Used During Construction, Additions	(0.1)	(4.0)
Changes in certain assets and liabilities:
Accounts receivable, net	(30.3)	(1.9)
Inventories	(3.3)	(13.1)
Taxes applicable to subsequent years	69.2	(60.0)
Current regulatory assets and liabilities, net	7.8	11.2
Prepayments and other current assets	(2.8)	(2.8)
Increase (Decrease) in Current Regulatory Assets and Liabilities	(18.6)	(20.7)
Increase (Decrease) in Other Noncurrent Assets	(1.5)	8.7
Accounts payable	(27.8)	10.9
Accrued taxes payable / receivable	(57.9)	(63.7)
Accrued interest	(8.8)	6.0
Increase (Decrease) in Other Accrued Liabilities	2.3	7.0
Increase (Decrease) in Obligation, Pension and Other Postretirement Benefits	(7.2)	(6.6)
Other	0.2	(0.1)
Net Cash Provided by (Used in) Operating Activities	(9.6)	62.4
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(158.3)	(289.1)
Payments for (Proceeds from) Removal Costs	(5.5)	(15.3)
Payments for (Proceeds from) Other Investing Activities	(0.3)	(0.6)
Net cash used in investing activities	(164.1)	(305.0)
Cash flows from financing activities:
Proceeds from (Payments for) Other Financing Activities	(0.8)	0.0
Proceeds from Lines of Credit	310.0	230.0
Repayments of Lines of Credit	(290.0)	(110.0)
Repayments of Long-Term Debt	(415.0)	0.0
Net cash provided by financing activities	189.8	250.0
Cash, cash equivalents, and restricted cash:
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	16.1	7.4
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	70.2	48.5
Non-cash financing and investing activities:
Accruals for capital expenditures	56.9	94.6
Supplemental cash flow information:
Interest paid, net of amounts capitalized	52.2	34.7
Proceeds from Contributions from Parent	0.0	130.0
Proceeds from Issuance of Redeemable Convertible Preferred Stock	540.6	0.0
Proceeds from Issuance of Common Stock	45.0	$ 0.0
4.13% Senior Notes due 2025
Supplemental cash flow information:
Long-term Debt, Gross	$ 415.0