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Stock-Based Compensation

3 Months Ended

Aug. 31, 2013

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Disclosure of Compensation Related Costs, Share-based Payments [Text Block]

10. Stock-Based Compensation

The following table summarizes stock-based compensation expense included in Selling, general and administrative expenses for the periods indicated:

	Three months ended
	August 31, 2013		August 31, 2012
Stock option expense	$	0.2	$	1.0
Restricted stock unit expense		0.8		0.9
Management stock purchase plan		0.0		0.0
Employee stock purchase plan		0.1		0.1

Total stock-based compensation expense	$	1.1	$	2.0

During each of the three month periods ended August 31, 2013 and 2012, shares of Common Stock issued by the Corporation pursuant to its stock-based compensation plans were not material.

- Definition

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

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