Earnings Per Share

12 Months Ended

Dec. 31, 2011

Earnings Per Share

Note B: Earnings Per Share

Earnings per share is computed by dividing net earnings by the weighted average number of shares of Common Stock outstanding during the period. The computation of earnings per share assuming dilution includes the dilutive effect of stock options, restricted stock units (“RSUs”) and restricted stock awards (“RSAs”). Stock options had the effect of increasing the weighted average shares outstanding assuming dilution by approximately 998,000 in 2011, 745,000 in 2010, and 663,000 in 2009. RSUs had the effect of increasing the weighted average shares outstanding assuming dilution by approximately 236,000, and 25,000 for the years ending 2011, and 2010, respectively. There were no RSUs that had the effect of increasing the weighted average shares outstanding assuming dilution for the year ended December 31, 2009. RSAs had the effect of increasing the weighted average shares outstanding assuming dilution by 3,000 in 2011, 138,000 in 2010 and 150,000 in 2009.

There were no anti-dilutive stock options excluded from the computation of earnings per share assuming dilution for the twelve months ended December 31, 2011. Anti-dilutive stock options excluded from the computation of earnings per share assuming dilution were 314,000 and 470,000 for the twelve months ended December 31, 2010 and 2009, respectively. Anti-dilutive RSUs and RSAs excluded from the computation of earnings per share assuming dilution were 298,000, 275,000 and 45,000 in 2011, 2010 and 2009, respectively.