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Share-Based Payments - Schedule of Stock-based Compensation Expense (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |
Stock-based compensation cost | $ 18,366 | $ 18,950 | $ 36,296
Cost of products |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |
Stock-based compensation cost | 10 | 20 | 78
Cost of services |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |
Stock-based compensation cost | 134 | 220 | 237
Research and development |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |
Stock-based compensation cost | 1,815 | 3,478 | 5,017
Selling, general and administrative |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |
Stock-based compensation cost | 17,787 | 11,380 | 25,222
Discontinued operations |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |
Stock-based compensation cost | $ (1,380) | $ 3,852 | $ 5,742

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