Revenue Recognition (Tables)

9 Months Ended

Sep. 30, 2023

Accounting Policies [Abstract]

Disaggregation of Revenue

Revenues for the three and nine months ended September 30, 2023 and 2022 were as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
	(Amounts in thousands)
Product revenue	$	141,156	$	200,708	$	482,910	$	614,668
Royalty and other income		36		33		111		106
Total revenue	$	141,192	$	200,741	$	483,021	$	614,774

Summary of Receivables and Deferred Revenue from Contracts with Customers

The following table provides information about receivables and deferred revenue from contracts with customers as of September 30, 2023 (amounts in thousands):

	September 30,		December 31,
	2023		2022
Balances from contracts with customers only:
Accounts receivable	$	106,158	$	116,247
Deferred revenue (included in accrued liabilities and    other noncurrent liabilities in the condensed consolidated    balance sheets)	$	11,447	$	19,631
Revenue recognized during periods presented relating to:
The beginning deferred revenue balance	$	16,999	$	13,390