|
Basic and Diluted Earnings Per Share (Parenthetical) (Detail) (2% Convertible Notes)
|
Aug. 31, 2012
|
Aug. 31, 2011
|
Aug. 31, 2010
|
Nov. 30, 2003
|
|---|---|---|---|---|
|
2% Convertible Notes
|
||||
| Schedule Of Earnings Per Share Basic And Diluted [Line Items] | ||||
| Debt instrument, interest rate | 2.00% | 2.00% | 2.00% | 2.00% |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Interest rate stated in the contractual debt agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|