Consolidated Statements Of Earnings (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Operating Revenues
Total Operating Revenues	$ 92.9	$ 103.9	$ 367.3	$ 427.5
Operating Expenses
Operation and Maintenance	20.3	19.6	57.1	56.0
Depreciation and Amortization	19.1	16.8	55.2	50.1
Taxes Other Than Income Taxes	7.8	7.0	22.6	21.1
Total Operating Expenses	87.1	95.9	304.9	368.2
Operating Income	5.8	8.0	62.4	59.3
Interest Expense, Net	7.4	7.0	22.1	21.1
Other (Income) Expense, Net	(0.3)	0.0	0.1	(0.1)
Income (Loss) Before Income Taxes	(1.3)	1.0	40.2	38.3
Provision for Income Taxes	(1.3)	(0.4)	8.7	8.6
Net Income Applicable to Common Shares	$ 0.0	$ 1.4	$ 31.5	$ 29.7
Net Income Per Common Share-Basic	$ 0	$ 0.09	$ 1.96	$ 1.85
Net Income Per Common Share-Diluted	$ 0	$ 0.09	$ 1.96	$ 1.85
Weighted Average Common Shares Outstanding-Basic	16.1	16.1	16.1	16.0
Weighted Average Common Shares Outstanding-Diluted	16.1	16.1	16.1	16.0
Electric
Operating Revenues
Total Operating Revenues	$ 62.5	$ 72.1	$ 192.5	$ 244.8
Operating Expenses
Cost of Sales	32.8	42.9	110.8	164.7
Gas
Operating Revenues
Total Operating Revenues	30.4	31.8	174.8	182.7
Operating Expenses
Cost of Sales	$ 7.1	$ 9.6	$ 59.2	$ 76.3