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Stock-Based Compensation Plan (Schedule of Stock-based Compensation Expense) (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
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Sep. 30, 2014
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Sep. 30, 2013
|
Sep. 30, 2014
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Sep. 30, 2013
|
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| Total stock-based compensation expenses | $ 7,597 | $ 6,612 | $ 21,411 | $ 17,463 |
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Cost of sales [Member]
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| Total stock-based compensation expenses | 1,282 | 793 | 3,228 | 2,059 |
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Research and development, net [Member]
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| Total stock-based compensation expenses | 1,098 | 821 | 2,921 | 2,567 |
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Selling, general and administrative [Member]
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| Total stock-based compensation expenses | $ 5,217 | $ 4,998 | $ 15,262 | $ 12,837 |