Stock-Based Compensation

3 Months Ended

Aug. 31, 2013

Stock-Based Compensation

NOTE I – Stock-Based Compensation

Non-Qualified Stock Options

During the three months ended August 31, 2013, we granted non-qualified stock options covering a total of 121,200 common shares under our stock-based compensation plans. The weighted average option price of $31.71 per share was equal to the market price of the underlying common shares at the grant date. The fair value of these stock options, based on the Black-Scholes option-pricing model, calculated at the grant date, was $12.92 per share. The calculated pre-tax stock-based compensation expense for these stock options, after an estimate for forfeitures, is $1,435,000 and will be recognized on a straight-line basis over the three-year vesting period. The following assumptions were used to value these stock options:

Dividend yield	2.28	%
Expected volatility	52.23	%
Risk-free interest rate	1.69	%
Expected term (years)	6.0

Expected volatility is based on the historical volatility of our common shares and the risk-free interest rate is based on the United States Treasury strip rate for the expected term of the stock options. The expected term was developed using historical exercise experience.

Restricted Common Shares

During the three months ended August 31, 2013, we granted 111,000 restricted common shares under our stock-based compensation plans. The fair values of these restricted common shares were equal to the closing market prices of the underlying common shares on the date of grant, or $31.71 per share. The calculated pre-tax stock-based compensation expense for these restricted common shares is $3,150,000 and will be recognized on a straight-line basis over the three-year vesting period.

Market-Based Restricted Common Shares

During the three months ended August 31, 2013, we granted 360,000 restricted common shares to certain key employees under our stock-based compensation plans. Vesting of these restricted common share awards is contingent upon the price of our common shares reaching $50.00 per share and remaining at or above that price for 30 consecutive days and the completion of a three-year service vesting period. The grant-date fair value of these restricted common shares, as determined by a Monte Carlo simulation model, was $24.19 per share. The Monte Carlo simulation model is a statistical technique that incorporates multiple assumptions to determine the probability that the market condition will be achieved. The following assumptions were used to determine the grant-date fair value and the derived service period for these restricted common shares:

Dividend yield	2.28	%
Expected volatility	53.40	%
Risk-free interest rate	1.41	%

The calculated pre-tax stock-based compensation expense for these restricted common shares was determined to be $8,708,000 and will be recognized on a straight-line basis over the three-year service vesting period.