Convertible Senior Notes - Net carrying amount (Details) - 2027 Notes - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023	Dec. 31, 2022
Senior Convertible Notes
Principal	$ 690,000	$ 690,000	$ 690,000
Unamortized debt issuance costs	(10,517)	(12,887)
Convertible notes carrying amount, net	$ 679,483	$ 677,113

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

- Definition

Amount of unamortized debt discount (premium) and debt issuance costs.

+ References + Details