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Share-Based Payments - Schedule of Stock-Based Compensation Costs (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |
Stock-based compensation costs | $ 4,897 | $ 61 | $ 9,269 | $ 9,115
Cost of products |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |
Stock-based compensation costs | 2 | 4 | 6 | 12
Cost of services |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |
Stock-based compensation costs | 35 | 52 | 64 | 117
Research and development |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |
Stock-based compensation costs | 364 | 1,360 | 953 | 2,701
Selling, general and administrative |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |
Stock-based compensation costs | 4,496 | (1,900) | 9,592 | 4,934
Discontinued operations |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |
Stock-based compensation costs | $ 0 | $ 545 | $ (1,346) | $ 1,351

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