Product Revenue, Accounts Receivable and Reserves for Product Sales - Schedule of Product Revenue by Region (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Disaggregation of Revenue [Line Items]
Product revenue, net	$ 119,222	$ 96,042	$ 235,579	$ 184,225
United States
Disaggregation of Revenue [Line Items]
Product revenue, net	91,633	96,042	179,122	184,225
Europe
Disaggregation of Revenue [Line Items]
Product revenue, net	19,283	0	39,960	0
Japan
Disaggregation of Revenue [Line Items]
Product revenue, net	$ 8,306	$ 0	$ 16,497	$ 0

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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- Definition

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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