Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2012

Earnings Per Share [Abstract]

Dilutive effect of stock options and awards for each period

	2012		2011		2010
	(in thousands)
Basic weighted-average shares outstanding		19,663		19,684		19,375
Effect of potential exercise of stock options and unvested restricted stock and restricted stock units		294		244		251
Diluted weighted-average shares outstanding		19,957		19,928		19,626