Madison Gas and Electric Company Consolidated Statements of Comprehensive Income (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Other comprehensive income/(loss), net of tax:
Unrealized gain (loss) on available-for-sale securities, net of tax	$ 95	$ 36	$ 56	$ 176
Comprehensive Income	23,424	24,389	65,189	61,004
MGE [Member]
Net Income	23,469	24,331	65,255	60,856
Other comprehensive income/(loss), net of tax:
Unrealized gain (loss) on available-for-sale securities, net of tax	43	49	(54)	77
Total comprehensive income including noncontrolling interest	23,512	24,380	65,201	60,933
Less: Comprehensive income attributable to Noncontrolling Interest, net of tax	(6,653)	(6,861)	(19,784)	(20,547)
Comprehensive Income	$ 16,859	$ 17,519	$ 45,417	$ 40,386