Share-Based Payments - Schedule of Stock-based Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation cost	$ 18,950	$ 36,296	$ 41,576
Cost of products
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation cost	20	78	116
Cost of services
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation cost	220	237	322
Research and development
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation cost	4,784	6,850	7,654
Selling, general and administrative
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation cost	11,419	25,259	28,801
Discontinued operations
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation cost	$ 2,507	$ 3,872	$ 4,683