Madison Gas and Electric Company Consolidated Statements of Comprehensive Income (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Other comprehensive income/(loss), net of tax:
Unrealized gain (loss) on available-for-sale securities, net of tax	$ (46)	$ 75	$ (39)	$ 140
Comprehensive Income	14,041	13,966	41,765	36,615
MGE [Member]
Net Income	14,143	13,965	41,786	36,525
Other comprehensive income/(loss), net of tax:
Unrealized gain (loss) on available-for-sale securities, net of tax	(116)	1	(98)	28
Total comprehensive income including noncontrolling interest	14,027	13,966	41,688	36,553
Less: Comprehensive income attributable to Noncontrolling Interest, net of tax	(6,621)	(6,860)	(13,131)	(13,686)
Comprehensive Income	$ 7,406	$ 7,106	$ 28,557	$ 22,867