Debt (Tables)

12 Months Ended

Dec. 31, 2023

Debt

Schedule of outstanding Convertible Notes

	December 31,
	2023		2022
	(in thousands)
Long-Term Debt
Outstanding Principal	$	287,500	$	287,500
Unamortized debt discount and debt issuance cost		(4,555)		(5,847)
Net carrying amount	$	282,945	$	281,653

Summary of interest expense

	December 31,
	2023			2022		2021
	(in thousands)
Cash interest expense
Contractual interest expense	$	6,469	$	6,469	$	6,469
Non-cash interest expense
Amortization of debt discount and debt issuance cost		1,292		1,259		1,227
Total interest expense	$	7,761	$	7,728	$	7,696