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Fair Value of Financial Assets and Liabilities - Marketable Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Fair Value of Financial Assets
Amortized Cost	$ 215,491	$ 205,702
Gross Unrealized Gains	282
Gross Unrealized Losses	(7)	(91)
Fair Value	215,765	205,611
Corporate Debt Securities and Commercial Paper
Fair Value of Financial Assets
Amortized Cost	215,491	205,702
Gross Unrealized Gains	282
Gross Unrealized Losses	(7)	(91)
Fair Value	$ 215,765	$ 205,611

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Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on 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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