Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Operating Revenues:
Electric revenues	$ 125,489	$ 116,167
Gas revenue	93,481	75,169
Total Operating Revenues	218,970	191,336
Operating Expenses:
Fuel for electric generation	17,569	12,704
Purchased power	4,378	9,442
Cost of gas sold	53,964	41,877
Other operations and maintenance	56,559	53,974
Depreciation and amortization	27,678	26,600
Other general taxes	5,957	5,994
Total Operating Expenses	166,105	150,591
Operating Income	52,865	40,745
Other income, net	2,604	3,881
Interest expense, net	(7,581)	(8,004)
Income before income taxes	47,888	36,622
Income tax provision	(6,296)	(2,808)
Net Income Including Noncontrolling Interest	41,592	33,814
Net Income	$ 41,592	$ 33,814
Earnings per share of Common Stock - Basic	$ 1.14	$ 0.93
Earnings per share of Common Stock - Diluted	1.14	0.93
Dividends per share of common stock	$ 0.45	$ 0.428
Weighted Average Shares Outstanding - Basic	36,511	36,171
Weighted Average Shares Outstanding - Diluted	36,539	36,189
MGE [Member]
Operating Revenues:
Electric revenues	$ 125,489	$ 116,167
Gas revenue	93,481	75,169
Total Operating Revenues	218,970	191,336
Operating Expenses:
Fuel for electric generation	17,569	12,704
Purchased power	4,378	9,442
Cost of gas sold	53,964	41,877
Other operations and maintenance	56,262	53,560
Depreciation and amortization	27,678	26,600
Other general taxes	5,957	5,994
Total Operating Expenses	165,808	150,177
Operating Income	53,162	41,159
Other income, net	(384)	1,108
Interest expense, net	(7,635)	(8,076)
Income before income taxes	45,143	34,191
Income tax provision	(5,340)	(1,991)
Net Income Including Noncontrolling Interest	39,803	32,200
Less Net Income Attributable to Noncontrolling Interest, net of tax	(5,599)	(5,597)
Net Income	$ 34,204	$ 26,603