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Equity Compensation Plans (Tables)

6 Months Ended

Nov. 30, 2015

Stock Option Activity

A summary of stock option activity during the six months ended November 30, 2015 follows:

		Shares				Weighted- Average Exercise Price
Options outstanding at June 1, 2015			1,988,000			$	31.04
Granted			549,000				46.98
Exercised			(315,000	)			22.09
Forfeited			(15,000	)			35.58
Options outstanding at November 30, 2015			2,207,000				36.26

Fair Value of Stock Options Granted, Estimated using Weighted-Average Assumptions

The fair value of stock options granted was estimated using the following weighted-average assumptions.

		FY2016				FY2015
Risk-free interest rate			1.2	%			1.2	%
Expected dividend yield			0	%			0	%
Expected stock price volatility			33.3	%			36.2	%
Expected option life			4.0 years				4.0 years

X

- Definition

Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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X

- Definition

Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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