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Stock-Based Compensation Plans (Details 3) (Employee Stock Option [Member], USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
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May 31, 2013
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May 31, 2012
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May 31, 2011
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Employee Stock Option [Member]
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| Stock options, other information | |||
| Total intrinsic value of stock options exercised | $ 7.8 | $ 0.8 | $ 1.9 |
| Total grant-date fair value of stock options vested | $ 3.0 | $ 10.4 | $ 20.0 |
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- Details
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- Definition
The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock. No definition available.
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