CONSOLIDATED STATEMENTS OF CAPITALIZATION (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Long-Term Debt
Unamortized discount	$ (2,321)		$ (2,457)
Total long-term debt, including current maturities	468,597		468,563
Less: current maturities	107		1,246
Total long-term debt	468,490		467,317
Common Stockholders' Equity
Common stock — 1,000,000 shares authorized of $100 par value; 933,000 shares outstanding at Dec. 31, 2013 and 2012, respectively	93,300		93,300
Additional paid in capital	248,844		189,867
Retained earnings	262,499		234,376
Accumulated other comprehensive loss	(361)		(437)
Total common stockholder’s equity	604,282		517,106
First Mortgage Bonds [Member] | Series Due Oct. 1, 2018 [Member]
Long-Term Debt
Long-term debt, gross	150,000		150,000
First Mortgage Bonds [Member] | Series Due Sept. 1, 2038 [Member]
Long-Term Debt
Long-term debt, gross	200,000		200,000
First Mortgage Bonds [Member] | Series Due Oct. 1, 2042
Long-Term Debt
Long-term debt, gross	100,000		100,000
City of La Crosse Resource Recovery Bond [Member] | Series Due Nov. 1, 2021 [Member]
Long-Term Debt
Long-term debt, gross	18,600	[1]	18,600	[1]
Fort McCoy System Acquisition [Member] | Due Oct. 15, 2030 [Member]
Long-Term Debt
Long-term debt, gross	558		591
Other
Long-Term Debt
Long-term debt, gross	$ 1,760		$ 1,829

[1] Resource recovery financing