Product Revenues, Accounts Receivable, and Reserves for Product Sales (Tables)

3 Months Ended

Mar. 31, 2023

Product Revenues Accounts Receivable And Reserves For Product Sales [Abstract]

Schedule of Disaggregation of Product Revenue by Major Source

The table reflects product revenue by major source for the following periods (in thousands):


		Three Months Ended March31,
		2023				2022
Products:
EMPAVELI		$	20,440			$	12,109
SYFOVRE			18,360				—
Total Product revenue, net		$	38,800			$	12,109

Summary of Product Revenue Allowance and Reserve Categories

The following table summarizes activity in each of the product revenue allowance and reserve categories for the three months ended March 31, 2023 (in thousands):


		Chargebacks, Discounts, and Fees				Government and other rebates				Returns				Total
Ending balance at December 31, 2022		$	164			$	1,936			$	251				2,351
Provision related to sales in the current year			1,466				2,566			651					4,683
Adjustments related to prior period sales			—				(2	)			(249	)			(251	)
Credits and payments made			(184	)			(1,639	)			—				(1,823	)
Ending balance at March 31, 2023		$	1,446			$	2,861			$	653			$	4,960

Schedule of Customer Accounted for 10% of More of Gross Product Revenues and Accounts Receivable

Significant customers - Gross product revenues and product sales receivable from the Company's customers who individually accounted for 10% of more of total gross product revenues and/or 10% or more of total product sales receivable consisted of the following:


		Percent of Total Gross Product Revenues
		Three Months Ended March31,
		2023		2022
Customer A		52%		98%
Customer D		33%			—


		Percent of Product Sales Receivable
		As of March 31,
		2023		2022
Customer A		25%		18%
Customer C		15%			—
Customer D		52%			—