|
SHAREHOLDERS' EQUITY (Details 2) (USD $)
In Thousands, except Per Share data, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
|
| Changes in outstanding warrants | |||
| Outstanding at the beginning of the period (in shares) | $ 18,297 | ||
| Exercised (in shares) | (3,949) | 0 | (11,600) |
| Outstanding at the end of the period (in shares) | 14,348 | 18,297 | |
| Outstanding at the beginning of the period (in dollars per share) | $ 28.07 | ||
| Exercised (in dollars per share) | $ 26.90 | ||
| Outstanding at the end of the period (in dollars per share) | $ 28.40 | $ 28.07 | |
|
Tranche 1
|
|||
| Changes in outstanding warrants | |||
| Outstanding at the end of the period (in shares) | 9,836 | ||
| Outstanding at the end of the period (in dollars per share) | $ 26.86 | ||
|
Tranche 2
|
|||
| Changes in outstanding warrants | |||
| Outstanding at the end of the period (in shares) | $ 4,512 | ||
| Outstanding at the end of the period (in dollars per share) | $ 31.75 | ||