Stock-Based Compensation Plans (Details 5) - Restricted Stock Unit [Member] - USD ($) $ / shares in Units, $ in Millions |
12 Months Ended | ||
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May. 31, 2015 |
May. 31, 2014 |
May. 31, 2013 |
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| RSUs, other information | |||
| Weighted-average grant-date fair value for RSUs granted | $ 36.64 | $ 36.37 | $ 28.59 |
| Total intrinsic value of RSUs vested | $ 21.7 | $ 18.3 | $ 15.5 |
| Total grant-date fair value of RSUs vested | $ 14.8 | $ 12.1 | $ 13.4 |
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- References No definition available.
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Intrinsic value of equity-based compensation awards vested. Excludes stock and unit options. No definition available.
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- Details
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