Equity (Schedule of Stock-based Compensation) (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2015 |
Jun. 30, 2016 |
Jun. 30, 2015 |
|
| Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] | ||||
| Total stock-based compensation expenses | $ 5,479 | $ 9,564 | $ 11,102 | $ 19,324 |
| Cost of sales [Member] | ||||
| Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] | ||||
| Total stock-based compensation expenses | 729 | 1,797 | 1,451 | 3,630 |
| Research and development, net [Member] | ||||
| Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] | ||||
| Total stock-based compensation expenses | 1,357 | 1,506 | 2,716 | 3,374 |
| Selling, general and administrative [Member] | ||||
| Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] | ||||
| Total stock-based compensation expenses | $ 3,393 | $ 6,261 | $ 6,935 | $ 12,320 |