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Product Revenue, Net (Tables)
 12 Months Ended
Dec. 31, 2024
Revenue from Contract with Customer [Abstract]  
Schedule of Gross to Net Adjustments Reserve
The following table summarizes balances and activity for gross to net adjustments (in thousands):
Chargebacks, Discounts for Prompt Pay and Other AllowancesRebates, Customer Fees/Credits, Co-Pay Assistance, and OtherTotals
Balance at December 31, 2023$— $— $— 
Provision related to sales in the current year8,045 35,115 43,160 
Adjustments related to prior year sales— — — 
Payments and customer credits issued(3,857)(13,412)(17,269)
Balance at December 31, 2024$4,188 $21,703 $25,891 
Schedules of Concentrations of Credit Risk and Significant Customers The following customers accounted for over 10% of total gross product revenue during the year ended December 31, 2024. As Rezdiffra was made commercially available in April 2024, there were no sales and no corresponding customer concentrations in 2023 or 2022.
Year ended December 31,
202420232022
Customer A
39 %— %— %
Customer B
21 %— %— %
Customer C
14 %— %— %
Customer D
12 %— %— %