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Cash and Cash Equivalents, Investments and Fair Value Measurements - Schedule of Available For Sale Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023	Sep. 30, 2023
Debt Securities, Available-for-sale [Line Items]
Cash	$ 152,073	$ 135,757	$ 94,419
Adjusted Cost	575,480
Fair Value	578,714
Cash
Debt Securities, Available-for-sale [Line Items]
Cash	52,523	45,050
Short-term investments:
Debt Securities, Available-for-sale [Line Items]
Adjusted Cost	208,991	194,787
Unrealized Gain	85	0
Unrealized Loss	(73)	(530)
Fair Value	209,003	194,257
Long-term investments:
Debt Securities, Available-for-sale [Line Items]
Adjusted Cost	266,939	248,754
Unrealized Gain	3,230	1,063
Unrealized Loss	(8)	(270)
Fair Value	270,161	249,547
Level 1 | Money market funds
Debt Securities, Available-for-sale [Line Items]
Cash	99,550	90,707
Corporate debt securities | Level 2 | Short-term investments:
Debt Securities, Available-for-sale [Line Items]
Adjusted Cost	118,386	69,548
Unrealized Gain	53	0
Unrealized Loss	(47)	(170)
Fair Value	118,392	69,378
Corporate debt securities | Level 2 | Long-term investments:
Debt Securities, Available-for-sale [Line Items]
Adjusted Cost	214,391	191,467
Unrealized Gain	2,482	898
Unrealized Loss	(8)	(213)
Fair Value	216,865	192,152
U.S. treasury securities | Level 1 | Short-term investments:
Debt Securities, Available-for-sale [Line Items]
Adjusted Cost	65,596	25,734
Unrealized Gain	32	0
Unrealized Loss	(13)	(114)
Fair Value	65,615	25,620
U.S. treasury securities | Level 1 | Long-term investments:
Debt Securities, Available-for-sale [Line Items]
Adjusted Cost	52,548	57,287
Unrealized Gain	748	165
Unrealized Loss	0	(57)
Fair Value	53,296	57,395
Agency bonds | Level 2 | Short-term investments:
Debt Securities, Available-for-sale [Line Items]
Adjusted Cost	25,009	99,505
Unrealized Gain	0	0
Unrealized Loss	(13)	(246)
Fair Value	$ 24,996	$ 99,259

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