Fair Value Measurements - Recurring (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2024	Dec. 31, 2023
Fair Value Measurements
Cash and cash equivalents	$ 27,106	$ 75,709
Marketable securities	47,375	33,747
Derivative liabilities		102
2025 Notes
Fair Value Measurements
Derivative liabilities	0	100
Reconciliation of items measured at fair value on a recurring basis that used significant unobservable inputs (Level 3)
Balance at the beginning of the period	102
(Gain) Loss on change in fair value of derivatives	$ (102)
Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Change in Unrealized Gain (Loss)
Recurring \| Embedded conversion option \| 2025 Notes
Fair Value Measurements
Derivative liabilities		102
Recurring \| Money market funds
Fair Value Measurements
Cash and cash equivalents	$ 19,401	72,953
Recurring \| Commercial paper
Fair Value Measurements
Marketable securities	7,443	7,598
Recurring \| Corporate debt securities
Fair Value Measurements
Marketable securities		7,982
Recurring \| Government and agency securities
Fair Value Measurements
Marketable securities	39,932	18,167
Recurring \| Level 1 \| Money market funds
Fair Value Measurements
Cash and cash equivalents	19,401	72,953
Recurring \| Level 1 \| Government and agency securities
Fair Value Measurements
Marketable securities	39,932	18,167
Recurring \| Level 2 \| Commercial paper
Fair Value Measurements
Marketable securities	$ 7,443	7,598
Recurring \| Level 2 \| Corporate debt securities
Fair Value Measurements
Marketable securities		7,982
Recurring \| Level 3 \| Embedded conversion option \| 2025 Notes
Fair Value Measurements
Derivative liabilities		$ 102

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current.

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

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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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Amount of gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3).

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Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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