Significant Stock-Based Plan Activity and Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2012

Significant Stock-Based Plan Activity and Stock-Based Compensation [Abstract]

Stock-based compensation expense

Total stock-based compensation expense, recognized as a component of Selling, general and administrative expense on our Consolidated Statements of Income, was as follows (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2012		2011		2012		2011
Selling, general and administrative	$	218	$	88	$	529	$	337

At September 30, 2012, we had total unrecognized stock-based compensation expense of $1.8 million, which will be recognized over the weighted average remaining vesting period of 3.1 years.