Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2013

Weighted-average shares used to calculate basic and diluted EPS

Basic earnings per share (EPS) is computed by dividing net income by the weighted-average shares of common stock outstanding. Diluted EPS is computed by dividing net income by the weighted-average shares of common stock outstanding, adjusted for the effect of potentially dilutive stock awards outstanding during the period. The following table reflects weighted-average shares used to calculate basic and diluted EPS for the periods presented (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2013		2012		2013		2012
Basic shares		67,163		64,772		66,576		64,534
Dilutive shares		181		167		173		164
Diluted shares		67,344		64,939		66,749		64,698

Weighted-average antidilutive stock awards

Weighted-average antidilutive stock awards were excluded in determining diluted earnings per share. The following table reflects weighted-average antidilutive shares for the periods presented (in thousands):

	Six Months Ended June 30,
	2013		2012

Weighted-average antidilutive shares		434		807