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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Share-Based Compensation - Classification of Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Share-based compensation
Share-based compensation expense	$ 6,676	$ 5,717	$ 12,707	$ 12,843
Cost of goods sold
Share-based compensation
Share-based compensation expense	112	39	292	39
Research and development expenses
Share-based compensation
Share-based compensation expense	1,608	1,923	3,584	4,557
Selling, general and administrative expenses
Share-based compensation
Share-based compensation expense	4,956	3,755	8,831	8,247
Stock options
Share-based compensation
Total unrecognized compensation cost	37,588		$ 37,588
Expenses expected to be recognized over a weighted average remaining period			2 years 6 months 10 days
Restricted Share Units (RSUs)
Share-based compensation
Share-based compensation expense	932	$ 526	$ 1,551	$ 2,030
Total unrecognized compensation cost	$ 12,743		$ 12,743
Expenses expected to be recognized over a weighted average remaining period			3 years 2 months 26 days