Stock-Based Compensation and Employee Benefit Plans - Expense by Type (Details 1) - USD ($) $ in Thousands |
3 Months Ended | |
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Mar. 31, 2018 |
Mar. 31, 2017 |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Allocated Share-based Compensation Expense | $ 8,473 | $ 5,474 |
| Cost of Sales [Member] | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Allocated Share-based Compensation Expense | 106 | 59 |
| Research and Development Expense [Member] | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Allocated Share-based Compensation Expense | 4,374 | 3,493 |
| Selling, General and Administrative Expenses [Member] | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Allocated Share-based Compensation Expense | $ 3,993 | $ 1,922 |
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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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