Net Income per Share (EPS) (Tables)

12 Months Ended

Dec. 31, 2012

Net Income per Share (EPS)

Schedule of Earnings Per Share, Basic and Diluted

	For the Year Ended
	December 31,
	2012	2011	2010
Basic shares	50,894	50,820	49,405
Employee stock options	92	87	222
Restricted stock and restricted stock units	562	264	117
Business combination obligations payable in fixed dollar amount of shares	-	200	674
Contingently issuable shares	24	-	29
Diluted shares	51,572	51,371	50,447
Antidilutive shares1	589	843	627