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Product revenue and reserves (Tables)
 3 Months Ended
Mar. 31, 2024
Revenue from Contract with Customer [Abstract]  
Disaggregation of Revenue Product revenue by therapy represents:
For the three months ended March 31,
20242023
ZYNTEGLO$18,561 $— 
SKYSONA— 2,296 
Total product revenue, net
$18,561 $2,296 
Summary Of Contract With Customer, Refund Liability
The following table summarizes an analysis of the change in reserves for gross to net deductions for the periods indicated:
Total
Balance at December 31, 2023
$5,365 
Provision for rebates
3,780 
Payments/credits— 
Balance at March 31, 2024
$9,145