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Number of Distributors

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Percentage of net product sales

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Amount of cash inflow from receipt of milestone payments.

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Remaining potential milestones that can be achieved.

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No definition available.

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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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.

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Revenue recognition - Narrative (Details) $ in Thousands	3 Months Ended
Revenue recognition - Narrative (Details) $ in Thousands	Mar. 31, 2021 USD ($) Distributor segment	Mar. 31, 2020 USD ($) Distributor	Dec. 31, 2020 USD ($)	Jul. 17, 2020 USD ($)	Nov. 30, 2011 USD ($)
Collaboration and royalty revenue
Number of operating segments \| segment	1
Number of distributors \| Distributor	2	3
Contract with Customer, Liability	$ 1,900		$ 4,200
Performance obligations satisfied in period	2,100	$ 2,000
Remaining potential milestones that can be achieved				$ 335,000
Revenue	117,942	68,259
United States
Collaboration and royalty revenue
Net product revenue	43,500	27,500
Non-US
Collaboration and royalty revenue
Net product revenue	$ 47,800	$ 40,700
Minimum
Collaboration and royalty revenue
Percentage of net product sales	10.00%	10.00%
Collaboration revenue
Collaboration and royalty revenue
Revenue	$ 20,007	$ 63
Royalty revenue
Collaboration and royalty revenue
Revenue	6,655	0
Licensing And Collaboration Agreement
Collaboration and royalty revenue
Revenue	20,000	100
Licensing And Collaboration Agreement \| Collaboration revenue
Collaboration and royalty revenue
Revenue	20,000	100
Licensing And Collaboration Agreement \| Royalty revenue
Collaboration and royalty revenue
Revenue	6,700	0
Research And Development Event Milestones \| Licensing And Collaboration Agreement
Collaboration and royalty revenue
Remaining potential milestones that can be achieved	10,000
Research And Development Event Milestones \| Licensing And Collaboration Agreement \| Maximum
Collaboration and royalty revenue
Remaining potential milestones that can be achieved					$ 135,000
Sales Milestones \| Licensing And Collaboration Agreement
Collaboration and royalty revenue
Remaining potential milestones that can be achieved	325,000
Milestone payments received	$ 20,000	$ 0
Sales Milestones \| Licensing And Collaboration Agreement \| Maximum
Collaboration and royalty revenue
Remaining potential milestones that can be achieved					$ 325,000