Stock-Based Compensation (Tables)

12 Months Ended

May 31, 2016

	Stock Options Granted In Fiscal Year
	2016			2014
Risk-free interest rate		1.6	%		1.4	%
Expected volatility of common stock		36.1	%		49.1	%
Dividend yield		1.1	%		1.2	%
Expected option term in years		4.2			5.2

A summary of stock option activity for the three years ended May 31, 2016 consisted of the following (shares in thousands):

	2016					2015					2014
	Shares			Weighted Average Exercise Price		Shares			Weighted Average Exercise Price		Shares			Weighted Average Exercise Price
Outstanding at beginning of year		1,857		$	21.05		2,753		$	19.59		2,300		$	16.22
Granted		489		$	26.62		—		$	—		1,033		$	25.43
Exercised		(122	)	$	20.61		(793	)	$	15.98		(473	)	$	16.20
Cancelled		(128	)	$	24.47		(103	)	$	21.03		(107	)	$	18.48

Outstanding at end of year		2,096		$	22.17		1,857		$	21.05		2,753		$	19.59


Options exercisable at end of year		837		$	21.21		627		$	21.78		1,019		$	17.88

The following table provides additional information regarding stock options outstanding as of May 31, 2016 (shares in thousands):

	Options Outstanding						Options Exercisable
Option Exercise Price Range	Number Outstanding as of 5/31/16		Weighted-Average Remaining Contractual Life in Years		Weighted- Average Exercise Price		Number Exercisable as of 5/31/16		Weighted- Average Exercise Price
$10.00 - $15.00		505		6.1	$	12.90		202	$	12.90
$15.01 - $20.00		213		3.6	$	16.75		208	$	16.75
$20.01 - $34.50		1,378		7.4	$	26.40		427	$	27.32

		2,096		6.7	$	22.17		837	$	21.21

Restricted share activity during the fiscal year ended May 31, 2016 was as follows (shares in thousands):

	Number of Shares			Weighted Average Fair Value on Grant Date
Nonvested at May 31, 2015		1,054		$	24.38
Granted		210		$	26.75
Vested		(626	)	$	23.92
Forfeited		(238	)	$	25.69

Nonvested at May 31, 2016		400		$	25.61