Basic earnings per share is computed by dividing income available to common shareholders (the “Numerator”) by the weighted-average number of common shares outstanding, adjusted for unvested shares (the “Denominator”) for the period. Computing diluted earnings per share is similar to computing basic earnings per share, except that the Denominator is increased to include the dilutive effects of stock options, unvested restricted shares and restricted share units, and other potentially dilutive instruments. Any stock options that have an exercise price...