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

9 Months Ended

Sep. 30, 2012

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

Summary of long-term debt and short-term debt

	September 30, 2012		December 31, 2011
Borrowings under our $100,000 revolving credit facility bearing interest at a floating rate equal to LIBOR (0.25% at September 30, 2012) plus an applicable margin of 2.75% at September 30, 2012, expiring December 21, 2014.	$	43,612	$	40,989
Borrowings under our $40,000 aggregate principal amount of fixed rate notes bearing interest at a fixed rate of 5.39% 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		17,143
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		75,041		78,132
Less current maturities of long-term debt		6,326		6,503
Long-term debt, excluding current maturities of long-term debt	$	68,715	$	71,629