Fair Value - Summary of the Company's Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Fair value
Debt securities	$ 531,346
Recurring Basis
Fair value
Cash equivalents	156,976	$ 34,316
Assets, Total	688,322	388,405
Recurring Basis \| Level 1
Fair value
Cash equivalents	156,976	34,316
Assets, Total	423,368	215,357
Recurring Basis \| Level 2
Fair value
Assets, Total	264,954	173,048
U.S. government and agency debt securities \| Recurring Basis
Fair value
Debt securities	318,839	218,869
U.S. government and agency debt securities \| Recurring Basis \| Level 1
Fair value
Debt securities	266,392	181,041
U.S. government and agency debt securities \| Recurring Basis \| Level 2
Fair value
Debt securities	52,447	37,828
Corporate debt securities \| Recurring Basis
Fair value
Debt securities	212,507	131,224
Corporate debt securities \| Recurring Basis \| Level 2
Fair value
Debt securities	$ 212,507	131,224
Non-U.S. government debt securities \| Recurring Basis
Fair value
Debt securities		3,996
Non-U.S. government debt securities \| Recurring Basis \| Level 2
Fair value
Debt securities		$ 3,996

Fair value portion of asset recognized for present right to economic benefit.

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

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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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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