|
Earnings Per Share - Additional Information (Detail)
In Millions, unless otherwise specified |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
|
Feb. 28, 2014
|
Feb. 28, 2013
|
Feb. 28, 2014
|
Feb. 28, 2013
|
|
| Earnings Per Share [Abstract] | ||||
| Anti-dilutive options not included in the computation of diluted earnings per share | 0.1 | 14.5 | 0 | 12.6 |