|
Stock-Based Compensation Plans (Details 7) (Restricted Stock [Member], USD $)
In Millions, except Per Share data, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
May 31, 2014
|
May 31, 2013
|
May 31, 2012
|
|
|
Restricted Stock [Member]
|
|||
| Nonvested/unearned shares, other information | |||
| Granted, Weighted-average grant-date fair value per share | $ 38.53 | $ 31.76 | $ 30.69 |
| Total grant-date fair value of restricted stock vested | $ 3.3 | $ 2.1 | $ 3.2 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- 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
|
| X | ||||||||||
|
- 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
|