Convertible Senior Notes - Components (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Mar. 31, 2024	Mar. 21, 2024	Mar. 20, 2024	Mar. 12, 2024	Dec. 31, 2023	May 31, 2020	May 29, 2020	May 18, 2020
Convertible Senior Notes
Unamortized debt discount	$ (1,000)
Net carrying amount	149,214					$ 195,264
3.75% Convertible Senior Notes
Convertible Senior Notes
Principal amount	58,462		$ 58,500			197,278	$ 212,500	$ 12,500	$ 200,000
Unamortized debt issuance costs	(299)					(2,014)
Net carrying amount	58,163					$ 195,264
7.0% Convertible Senior Notes
Convertible Senior Notes
Principal amount	140,396	$ 140,400		$ 140,400	$ 140,400
Unamortized debt premium, net of offering costs	8,818
Net carrying amount	$ 149,214