Income per share data

6 Months Ended

Jun. 30, 2012

Income per share data [Abstract]

Income per share data

11. Income per share data

Basic income per common share is computed based on the weighted average number of outstanding shares of common stock. Diluted income per common share adjusts the basic weighted average common shares outstanding for the potential dilution that could occur if stock options, restricted stock and convertible securities were exercised or converted into common stock.

The following table presents a reconciliation of the numerator and denominator of the basic and diluted earnings per share computation. In the table below, net income represents the numerator and weighted average common shares outstanding represents the denominator:

	Three Months Ended June 30,				Six Months Ended June 30,
	2012		2011		2012		2011
	(In thousands except per share data)
Net income	$	2,356	$	15,791	$	4,057	$	19,486
Weighted average basic common shares outstanding		27,550		26,670		27,392		26,189
Dilutive effect of stock-based awards		703		1,269		846		1,607
Weighted average diluted common shares outstanding		28,253		27,939		28,238		27,796
Earnings per share:
Basic	$	0.09	$	0.59	$	0.15	$	0.74
Diluted	$	0.08	$	0.57	$	0.14	$	0.70

Due to the cash settlement feature of the principal amount of the Notes, we only include the impact of the premium feature in our diluted earnings per common share calculation when the average stock price exceeds the conversion price of the Notes, which did not occur for the three or six months ended June 30, 2012.

For the three and six months ended June 30, 2012 and 2011, certain stock options to purchase common stock were not included in the computation of diluted earnings per share as their effect was anti-dilutive because their exercise prices exceeded the average market price of the Company’s common stock during the period. The weighted average effect of potentially dilutive securities that have been excluded from the calculation of diluted net income per common share because the effect was anti-dilutive was as follows (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2012		2011		2012		2011
Restricted stock units and awards		5		84		89		42
Early exercise shares		—		—		—		1
Stock options		512		35		450		18