Interest Expense

3 Months Ended

Mar. 31, 2023

Other Income and Expenses [Abstract]

Interest Expense

Interest Expense

The following details the composition of interest expense (dollars in thousands):

	Three Months Ended March 31,
	2023		2022
	(unaudited)
Interest expense	$	(1,188)	$	(1,155)
Interest expense on nonrecourse liability related to sale of future royalties	(317)		(787)
Total	$	(1,505)	$	(1,942)

Interest expense includes noncash interest expense related to amortization of deferred financing costs on the 2023 Notes of $0.5 million and $0.5 million for the three months ended March 31, 2023 and 2022, respectively.