Stock And Stock-Based Incentive Plans (Composition Of Share-Based Compensation Expense - By Grant Type) (Details) - USD ($)
$ in Thousands |
3 Months Ended |
May. 31, 2015 |
May. 31, 2014 |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
| Share-based compensation expense, before income taxes |
$ 23,778
|
$ 15,719
|
| Stock Options [Member] |
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
| Share-based compensation expense, before income taxes |
8,680
|
8,120
|
| Cash-Settled Restricted Stock Units [Member] |
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
| Share-based compensation expense, before income taxes |
10,873
|
3,147
|
| Stock-Settled Market Stock Units [Member] |
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
| Share-based compensation expense, before income taxes |
2,896
|
4,121
|
| Stock-Settled Performance Stock Units [Member] |
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
| Share-based compensation expense, before income taxes |
894
|
0
|
| Employee Stock Purchase Plan [Member] |
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
| Share-based compensation expense, before income taxes |
369
|
331
|
| Restricted Stock Awards [Member] |
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
| Share-based compensation expense, before income taxes |
$ 66
|
$ 0
|