Long-Term Debt and Short-Term Debt (Tables)

3 Months Ended

Mar. 31, 2013

Long-Term Debt and Short-Term Debt [Abstract]

Summary of long-term debt and short-term debt

	March 31, 2013		December 31, 2012
Borrowings under our $100,000 revolving credit facility bearing interest at a floating rate equal to LIBOR (0.25% at March 31, 2013) plus an applicable margin of 1.50% at March 31, 2013, expiring October 26, 2017.	$	32,229	$	38,087
Borrowings under our $40,000 aggregate principal amount of fixed rate notes bearing interest at a fixed rate of 4.89% maturing on April 26, 2014. Annual principal payments of $5,714 began on April 26, 2008 and extend through the date of maturity.		11,429		11,429
Borrowings under our $20,000 aggregate principal amount of fixed rate notes bearing interest at a fixed rate of 4.64% maturing on December 20, 2018. Annual principal payments of $4,000 will begin on December 22, 2014 and extend through the date of maturity.		20,000		20,000
Total debt		63,658		69,516
Less current maturities of long-term debt		7,943		5,801
Long-term debt, excluding current maturities of long-term debt	$	55,715	$	63,715