v3.25.1
Product Revenue, Net
 3 Months Ended
Mar. 31, 2025
Revenue from Contract with Customer [Abstract]  
Product Revenue, Net Product Revenue, Net
The following table summarizes balances and activity for gross to net reserves (in thousands):
Chargebacks, Discounts for Prompt Pay and Other AllowancesRebates, Customer Fees/Credits, Co-Pay Assistance, and OtherTotals
Balance at December 31, 2024$4,188 $21,703 $25,891 
Provision related to sales in the current year5,239 29,380 34,619 
Adjustments related to prior year sales(1,066)(329)(1,395)
Payments and customer credits issued(3,866)(17,385)(21,251)
Balance at March 31, 2025$4,495 $33,369 $37,864 
Concentrations of Credit Risk and Significant Customers
The Company generates revenue from a small number of large, reputable customers. The following customers accounted for over 10% of total gross product revenue during the three months ended March 31, 2025. As Rezdiffra was made commercially available in April 2024, there were no sales and no corresponding customer concentrations for the comparable period in 2024.
Three Months Ended
March 31,
20252024
Customer A
34 %— %
Customer B
23 %— %
Customer C
15 %— %
Customer D
10 %— %