Earnings Per Share

6 Months Ended

Jun. 30, 2013

Earnings Per Share [Abstract]

Earnings Per Share

Earnings Per Share

Basic earnings per share is computed by dividing net income by the weighted average number of common shares outstanding during the period. Diluted earnings per share is computed by dividing net income by the weighted average number of common shares outstanding plus the effect of dilutive potential common shares outstanding during the period using the treasury stock method. Dilutive potential common shares include outstanding stock options and restricted stock awards. There are no differences in the numerators of our computations of basic and diluted earnings per share for any period presented. The computation of basic and diluted earnings per share is shown below (in thousands, except per share amounts).

	Three Months Ended June 30,				Six Months Ended June 30,
	2013		2012		2013		2012
Net income	$	25,840	$	30,680	$	43,351	$	51,925
Weighted average common shares outstanding	73,022		72,859		73,140		72,857
Dilutive effect of stock-based awards	576		553		550		544
Shares used in computing diluted earnings per share	73,598		73,412		73,690		73,401
Basic earnings per share	$	0.35	$	0.42	$	0.59	$	0.71
Diluted earnings per share	$	0.35	$	0.42	$	0.59	$	0.71

There were no options to purchase shares of common stock that were outstanding during the periods indicated above that were excluded from the computation of diluted earnings per share because the option purchase price was greater than the average market price of the common shares during the period.