Debt (Tables)

12 Months Ended

Dec. 31, 2023

Debt Disclosure [Abstract]

Schedule of Convertible Debt

The following table presents details of our convertible senior notes, which are further discussed below (original principal in thousands):

	Month Issued	Maturity Date	Free Convertibility Date	Redemption Date	Original Principal (including overallotment)		Initial Conversion Rate per $1,000 Principal	Initial Conversion Price
2026 Notes	August 2019	August 15, 2026	May 15, 2026	August 21, 2023	$	345,000	12.4756	$	80.16
2028 Notes	August 2023	August 15, 2028	May 15, 2028	August 21, 2026	$	702,000	7.4690	$	133.89

The net carrying amount of the Notes was as follows (in thousands):

	December 31, 2023				December 31, 2022
	2026 Notes		2028 Notes		2026 Notes		2028 Notes
Principal	$	71,242	$	702,000	$	345,000	$	—
Unamortized issuance costs	(711)		(10,076)		(4,743)		—
Net carrying amount	$	70,531	$	691,924	$	340,257	$	—

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

	Year ended December 31,
	2023		2022		2021
Contractual interest expense	$	5,952	$	3,880	$	3,881
Amortization of debt discount	—		—		8,153
Amortization of issuance costs	1,730		1,298		1,018
Total interest expense	$	7,682	$	5,178	$	13,052