Revenue Recognition (Tables)

3 Months Ended

Mar. 31, 2023

Accounting Policies [Abstract]

Disaggregation of Revenue

Revenues for the three months ended March 31, 2023 and 2022 were as follows:

	Three Months Ended March 31,
	2023		2022
	(Amounts in thousands)
Product revenue	$	182,621	$	206,363
Royalty and other income		39		37
Total revenue	$	182,660	$	206,400

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 March 31, 2023 (amounts in thousands):

	March 31,		December 31,
	2023		2022
Balances from contracts with customers only:
Accounts receivable	$	133,488	$	116,247
Deferred revenue (included in accrued liabilities and    other noncurrent liabilities in the condensed consolidated    balance sheets)	$	18,821	$	19,631
Revenue recognized during periods presented relating to:
The beginning deferred revenue balance	$	8,601	$	13,390