Debt (Tables)

9 Months Ended

Sep. 30, 2022

Debt

Schedule of outstanding Convertible Notes

	September 30, 2022		December 31, 2021
	(in thousands)
Long-Term Debt
Outstanding Principal	$	287,500	$	287,500
Unamortized debt discount and issuance cost		(6,164)		(7,106)
Net carrying amount	$	281,336	$	280,394

Summary of interest expense

	Three months ended September 30,
	2022		2021
	(in thousands)
Cash interest expense
Contractual interest expense	$	1,617	$	1,617
Non-cash interest expense
Amortization of debt discount and debt issuance cost		316		308
Total interest expense	$	1,933	$	1,925

	Nine months ended September 30,
	2022		2021
	(in thousands)
Cash interest expense
Contractual interest expense	$	4,852	$	4,852
Non-cash interest expense
Amortization of debt discount and debt issuance cost		941		917
Total interest expense	$	5,793	$	5,769