Share-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2013

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Performance Unit Graded Vesting Schedule

	MGE Energy
Grant Date	Units Granted
January 15, 2010	25,965
January 21, 2011	23,483
February 17, 2012	25,040
February 15, 2013	22,884
February 21, 2014	21,991