Investments (Tables)

12 Months Ended

Dec. 31, 2011

Investments (Tables) [Abstract]

Equity Method, Available for Sale Securities, and Other Investments

(In thousands)		MGE Energy				MGE
		2011		2010		2011		2010
Available for sale securities:
Cost basis	$	1,347	$	1,316	$	482	$	536
Gross unrealized gains		196		243		87		125
Gross unrealized losses		(9)		(6)		(9)		(6)
Fair Value	$	1,534	$	1,553	$	560	$	655
Equity method investments:
ATC	$	56,975	$	54,200	$	56,975	$	54,200
Other		21		92		21		92
Total equity method investments	$	56,996	$	54,292	$	56,996	$	54,292
Other investments		1,802		0		0		0
Total	$	60,332	$	55,845	$	57,556	$	54,947

ATC's Summarized Financial Data

(In thousands)
Income statement data for the year ended December 31,		2011		2010		2009
Operating revenues	$	567,174	$	556,741	$	521,525
Operating expenses		(261,568)		(251,120)		(230,316)
Other expense		(1,332)		(885)		(621)
Interest expense, net		(80,359)		(85,067)		(77,223)
Earnings before members' income taxes	$	223,915	$	219,669	$	213,365
Balance sheet data as of December 31,		2011		2010		2009
Current assets	$	58,671	$	59,856	$	51,121
Noncurrent assets		3,053,742		2,888,448		2,767,249
Total assets	$	3,112,413	$	2,948,304	$	2,818,370
Current liabilities	$	298,473	$	428,387	$	285,494
Long-term debt		1,400,005		1,175,010		1,259,643
Other noncurrent liabilities		82,647		84,940		76,837
Members' equity		1,331,288		1,259,967		1,196,396
Total members' equity and liabilities	$	3,112,413	$	2,948,304	$	2,818,370