Stock-Based Compensation Plan (Schedule of Stock-based Compensation Expense) (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | |
---|---|---|
Mar. 31, 2014
|
Mar. 31, 2013
|
|
Total stock-based compensation expenses | $ 6,736 | $ 5,490 |
Cost of sales [Member]
|
||
Total stock-based compensation expenses | 912 | 634 |
Research and development, net [Member]
|
||
Total stock-based compensation expenses | 938 | 900 |
Selling, general and administrative [Member]
|
||
Total stock-based compensation expenses | $ 4,886 | $ 3,956 |