Debt - Schedule of Net Carrying Amount (Details) - USD ($)	Sep. 30, 2024	Aug. 08, 2024	Dec. 31, 2023	Dec. 31, 2021
Senior Notes
Debt Instrument [Line Items]
Principal	$ 100,000,000	$ 100,000,000
Unamortized debt discount and issuance costs	(4,728,000)
Net carrying amount	95,272,000
Convertible Senior Notes Due 2026 | Convertible Debt
Debt Instrument [Line Items]
Principal	203,083,000		$ 625,000,000	$ 625,000,000
Unamortized debt discount and issuance costs	(2,326,000)		(9,572,000)
Net carrying amount	200,757,000		$ 615,428,000
Convertible Senior Notes Due 2030 | Senior Notes
Debt Instrument [Line Items]
Principal		100,000,000
Series 1 Convertible Notes | Convertible Debt
Debt Instrument [Line Items]
Principal	59,391,000	82,300,000
Unamortized debt discount and issuance costs	(15,305,000)
Net carrying amount	44,086,000
Series 2 Convertible Notes | Convertible Debt
Debt Instrument [Line Items]
Principal	191,918,000	$ 192,000,000
Unamortized debt discount and issuance costs	(32,702,000)
Net carrying amount	$ 159,216,000