Product revenue and reserves (Tables)

12 Months Ended

Dec. 31, 2023

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

Product revenue by therapy represents:

	For the year ended December 31,
	2023		2022
ZYNTEGLO	$	16,692	$	2,739
SKYSONA	12,373		—
Total product revenue	$	29,065	$	2,739

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, 2022	$	—
Provision for rebates	5,365
Payments/credits	—
Balance at December 31, 2023	$	5,365