|
Note 11 - Share-Based Compensation (Detail) (USD $)
|
3 Months Ended |
|
Nov. 30, 2011
|
Nov. 30, 2010
|
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period |
30,040 |
110,840 |
|
Restricted Stock Units (RSUs) [Member]
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period |
1,043,736 |
569,419 |
| Share-based Compensation Arrangement by Share-based Payment Award, Per Share Weighted Average Price of Shares Purchased (in Dollars per share) |
23.25 |
30.56 |
| Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period |
three |
four |
| Share-Based Compensation Liability, Shares |
688,411 |
269,511 |
|
Stock Options [Member]
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Per Share Weighted Average Price of Shares Purchased (in Dollars per share) |
|
30.56 |
| Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period |
|
four |
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross |
|
600,073 |
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period |
30,040 |
110,840 |
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price (in Dollars per share) |
17.28 |
22.23 |
|
Stock Appreciation Rights (SARs) [Member]
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period |
|
358,751 |
| Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period |
|
four |
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in Dollars per share) |
|
30.56 |
|
Performance Cash Units [Member]
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period |
11,661,500 |
|
| Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period |
three |
|
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in Dollars per share) |
1.13 |
|