|
Share-Based Compensation (Outstanding Stock Options) (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified |
9 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
Nov. 30, 2011
years
|
Feb. 28, 2011
|
Nov. 30, 2011
$7.14 To $10.75 [Member]
years
|
Nov. 30, 2011
$11.43 [Member]
years
|
Nov. 30, 2011
$13.19 To $14.13 [Member]
years
|
Nov. 30, 2011
$14.49 To $19.36 [Member]
years
|
Nov. 30, 2011
$19.82 [Member]
years
|
Nov. 30, 2011
$19.98 To $24.99 [Member]
years
|
Nov. 30, 2011
$25.39 [Member]
years
|
Nov. 30, 2011
$25.67 To $33.11 [Member]
years
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||||||||
| Options Outstanding, Number of Shares | 13,406 | 574 | 2,359 | 1,729 | 1,932 | 1,717 | 1,354 | 1,750 | 1,991 | |
| Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 3.8 | 1.3 | 4.4 | 3.0 | 2.0 | 3.4 | 2.5 | 5.4 | 6.2 | |
| Options Outstanding, Weighted Average Exercise Price | $ 19.52 | $ 17.31 | $ 7.39 | $ 11.43 | $ 13.42 | $ 15.91 | $ 19.82 | $ 24.78 | $ 25.39 | $ 32.43 |
| Options Exercisable, Number of Shares | 8,508 | 574 | 1,082 | 1,729 | 1,880 | 1,253 | 1,319 | 488 | 183 | |
| Options Exercisable, Weighted Average Exercise Price | $ 17.07 | $ 7.39 | $ 11.43 | $ 13.42 | $ 15.89 | $ 19.82 | $ 24.91 | $ 25.39 | $ 29.83 | |
| Range of Exercise Prices, lower range | $ 7.14 | $ 13.19 | $ 14.49 | $ 19.98 | $ 25.67 | |||||
| Range of Exercise Prices, upper range | $ 10.75 | $ 11.43 | $ 14.13 | $ 19.36 | $ 19.82 | $ 24.99 | $ 25.39 | $ 33.11 | ||