|
Stock Plans (Details 4) (USD $)
In Thousands, except Share data, unless otherwise specified |
6 Months Ended |
|---|---|
|
Jun. 30, 2012
|
|
| Supplemental disclosure of stock options | |
| Options exercisable, Shares | 947,351 |
| Options exercisable, Weighted- Average Exercise Price | $ 2.18 |
| Options exercisable, Weighted- Average Remaining Contractual Life (Years) | 6 years 7 months 2 days |
| Options exercisable, Aggregate Intrinsic Value | $ 25,235 |
| Options outstanding, Shares | 2,600,605 |
| Options outstanding, Weighted- Average Exercise Price | $ 9.33 |
| Options outstanding, Weighted- Average Remaining Contractual Life (Years) | 7 years 11 months 19 days |
| Options outstanding, Aggregate Exercise Price Intrinsic Value | $ 52,410 |