Short-Term and Long-Term Borrowings (Tables)

6 Months Ended

Jun. 30, 2014

Debt Disclosure [Abstract]

Schedule of lines of credit

(in thousands)	Line Limit		In Use on June 30, 2014		Restricted due to Outstanding Letters of Credit		Available on June 30, 2014		Available on December 31,  2013
Otter Tail Corporation Credit Agreement	$	150,000	$	25,273	$	309	$	124,418	$	149,341
OTP Credit Agreement		170,000		2,870		2,330		164,800		116,975
Total	$	320,000	$	28,143	$	2,639	$	289,218	$	266,316

Schedule of short-term and long-term debt outstanding

June 30, 2014 (in thousands)	OTP		Otter Tail  Corporation		Otter Tail  Corporation  Consolidated
Short-Term Debt	$	2,870	$	25,273	$	28,143
Long-Term Debt:
9.000% Notes, due December 15, 2016			$	52,330		52,330
Senior Unsecured Notes 5.95%, Series A, due August 20, 2017		33,000				33,000
Senior Unsecured Notes 4.63%, due December 1, 2021		140,000				140,000
Senior Unsecured Notes 6.15%, Series B, due August 20, 2022		30,000				30,000
Senior Unsecured Notes 6.37%, Series C, due August 20, 2027		42,000				42,000
Senior Unsecured Notes 4.68%, Series A, due February 27, 2029		60,000				60,000
Senior Unsecured Notes 6.47%, Series D, due August 20, 2037		50,000				50,000
Senior Unsecured Notes 5.47%, Series B, due February 27, 2044		90,000				90,000
North Dakota Development Note, 3.95%, due April 1, 2018		--		291		291
Partnership in Assisting Community Expansion (PACE) Note, 2.54%, due March 18, 2021		--		1,165		1,165
Total	$	445,000	$	53,786	$	498,786
Less: Current Maturities		--		194		194
Unamortized Debt Discount		--		1		1
Total Long-Term Debt	$	445,000	$	53,591	$	498,591
Total Short-Term and Long-Term Debt (with current maturities)	$	447,870	$	79,058	$	526,928

December 31, 2013 (in thousands)	OTP		Otter Tail  Corporation		Otter Tail  Corporation  Consolidated
Short-Term Debt	$	51,195	$	--	$	51,195
Long-Term Debt:
Unsecured Term Loan - LIBOR plus 0.875%, due January 15, 2015	$	40,900			$	40,900
9.000% Notes, due December 15, 2016			$	52,330		52,330
Senior Unsecured Notes 5.95%, Series A, due August 20, 2017		33,000				33,000
Senior Unsecured Notes 4.63%, due December 1, 2021		140,000				140,000
Senior Unsecured Notes 6.15%, Series B, due August 20, 2022		30,000				30,000
Senior Unsecured Notes 6.37%, Series C, due August 20, 2027		42,000				42,000
Senior Unsecured Notes 6.47%, Series D, due August 20, 2037		50,000				50,000
North Dakota Development Note, 3.95%, due April 1, 2018		--		325		325
PACE Note, 2.54%, due March 18, 2021		--		1,223		1,223
Total	$	335,900	$	53,878	$	389,778
Less: Current Maturities		--		188		188
Unamortized Debt Discount		--		1		1
Total Long-Term Debt	$	335,900	$	53,689	$	389,589
Total Short-Term and Long-Term Debt (with current maturities)	$	387,095	$	53,877	$	440,972