Note 2 - Earnings Per Share

6 Months Ended

Jun. 30, 2017

2.	Earnings Per Share

We compute basic earnings per share by dividing net earnings available to common stockholders by the actual weighted average number of common shares outstanding for the reporting period. Diluted earnings per share reflects the potential dilution that could occur if holders of unvested restricted and performance share units or vested and unvested stock options exercised or converted their holdings into common stock. The dilutive effect of restricted and performance share units and stock options was

1.2

million shares during the

second

quarter

2017,

compared to

1.1

million shares during

second

quarter

2016.

During the

six

months ended

June 30, 2017

and

2016,

the dilutive effect of restricted and performance share units and stock options was

1.2

million shares and

1.0

million shares, respectively.