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Equity Compensation Plans (Tables)

12 Months Ended

May. 31, 2015

Stock Option Activity

Qualified and non-qualified options to purchase shares of common stock may be granted to directors, officers and employees of the Company under the terms of the Company’s stock option plans. These options are granted at an exercise price of not less than the fair market value of the stock on the date of grant. Remaining shares available for grant under stock option plans were 306,000, 805,000 and 1,227,000 at May 31, 2015, 2014 and 2013, respectively. Options vest ratably over three and five year periods and the contractual terms are generally five or ten years.

(Shares in thousands)		Shares				Weighted-Average Exercise Price				Weighted-Average Grant Date Fair Value
Outstanding at May 31, 2012 (863 exercisable)			2,314			$	14.89			$	4.63
Granted			459				28.67				9.21
Exercised			(657	)			10.61				3.43
Forfeited			(24	)			19.67				6.07
Outstanding at May 31, 2013 (749 exercisable)			2,092				19.21				6.00
Granted			512				36.44				9.87
Exercised			(643	)			13.69				4.28
Forfeited			(92	)			22.08				6.65
Outstanding at May 31, 2014 (577 exercisable)			1,869				25.69				7.62
Granted			536				39.79				11.91
Exercised			(380	)			16.69				5.17
Forfeited			(37	)			33.55				9.45
Outstanding at May 31, 2015 (639 exercisable)			1,988				31.04				9.20

Summary of Stock Options Outstanding

The following is a summary of stock options outstanding at May 31, 2015:

(Options in thousands)
		Options Outstanding												Options Exercisable
Range of Exercise price		Number				Average Remaining Contractual Life (in years)				Weighted-Average Exercise Price				Number				Weighted Average Exercise Price
$  5.45 - $ 22.91			261				2.4			$	17.10				198			$	16.58
22.92 - 28.26			321				1.8				23.17				184				23.22
28.27 - 32.37			411				3.0				28.67				164				28.67
32.38 - 38.03			432				3.6				36.07				81				36.07
38.04 - 43.67			563				5.1				39.90				12				41.60
			1,988				3.5				31.04				639				24.50

X

- Definition

Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 718



-SubTopic 10



-Section 50



-Paragraph 2



-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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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