Interest Expense (Tables)

9 Months Ended

Sep. 30, 2022

Other Income and Expenses [Abstract]

Schedule of interest expense

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

	Three Months Ended September 30,				Nine Months Ended September 30,
	2022		2021		2022		2021
	(unaudited)				(unaudited)
Interest expense	$	(1,158)	$	(5,033)	$	(3,488)	$	(14,593)
Interest expense on nonrecourse liability related to sale of future royalties	(566)		(892)		(1,988)		(2,896)
Total	$	(1,724)	$	(5,925)	$	(5,476)	$	(17,489)