Long-term Debt (Tables)

12 Months Ended

Dec. 31, 2023

Debt Disclosure [Abstract]

Summary of Outstanding Principal Amount and Carrying Value

The following table presents the outstanding principal amount and carrying value of the 2021 Notes as of the dates indicated (in thousands):

	December 31, 2023							December 31, 2022
	Principal Amount		Unamortized debt issuance costs			Net Carrying Amount		Principal Amount		Unamortized debt issuance costs			Net Carrying Amount
2021 Notes		287,500		(5,645	)		281,855		287,500		(7,256	)		280,244

Schedule of Notes

Further details of the 2021 Notes are as follows:

Issuance	Maturity Date	Interest Rate	First Interest Payment Date	Effective Interest Rate	Semi-Annual Interest Payment Dates	Initial Conversion Rate per $1,000 Principal	Initial Conversion Price		Number of Shares (in millions) (1)
2021 Notes	May 15, 2027	1.125%	May 15, 2022	1.72%	May 15; November 15	9.0061	$	111.04	2.6

Schedule of Interest Expense

Interest expense related to the Notes was as follows (in thousands):

	Year Ended December 31, 2023		Year Ended December 31, 2022						Year Ended December 31, 2021
	2021 Notes		2019 Notes		2021 Notes		Total		2019 Notes		2021 Notes		Total
Amortization of debt issuance costs		1,612		19		1,583		1,602		329		239		568
Cash interest expense		3,236		87		3,234		3,321		1,488		494		1,982
Total interest expense	$	4,848	$	106	$	4,817	$	4,923	$	1,817	$	733	$	2,550