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Investments and Fair Value Measurements - Schedule of Marketable Investments (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Fair Value	$ 572,462	$ 434,628
Short-Term Marketable Investments
Debt Securities, Available-for-sale [Line Items]
Cost	574,111	436,928
Gross Unrealized Gains	11	37
Gross Unrealized Losses	(1,660)	(3,222)
Fair Value	572,462	433,743
Long-term Marketable Investments
Debt Securities, Available-for-sale [Line Items]
Cost		885
Gross Unrealized Gains		0
Gross Unrealized Losses		0
Fair Value		885
Certificates of deposit
Debt Securities, Available-for-sale [Line Items]
Fair Value	1,206	734
Certificates of deposit | Short-Term Marketable Investments
Debt Securities, Available-for-sale [Line Items]
Cost	1,206	747
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	(13)
Fair Value	1,206	734
U.S. treasury securities
Debt Securities, Available-for-sale [Line Items]
Fair Value	263,086	185,402
U.S. treasury securities | Short-Term Marketable Investments
Debt Securities, Available-for-sale [Line Items]
Cost	263,979	186,776
Gross Unrealized Gains	10	8
Gross Unrealized Losses	(903)	(1,382)
Fair Value	263,086	185,402
U.S. agency securities | Short-Term Marketable Investments
Debt Securities, Available-for-sale [Line Items]
Cost	267,458	197,597
Gross Unrealized Gains	0	29
Gross Unrealized Losses	(659)	(1,660)
Fair Value	266,799	195,966
U.S. agency securities | Long-term Marketable Investments
Debt Securities, Available-for-sale [Line Items]
Cost		885
Gross Unrealized Gains		0
Gross Unrealized Losses		0
Fair Value		885
Commercial paper
Debt Securities, Available-for-sale [Line Items]
Fair Value	31,403	25,386
Commercial paper | Short-Term Marketable Investments
Debt Securities, Available-for-sale [Line Items]
Cost	31,412	25,386
Gross Unrealized Gains	1	0
Gross Unrealized Losses	(10)	0
Fair Value	31,403	25,386
Municipal bonds
Debt Securities, Available-for-sale [Line Items]
Fair Value		22,619
Municipal bonds | Short-Term Marketable Investments
Debt Securities, Available-for-sale [Line Items]
Cost		22,764
Gross Unrealized Gains		0
Gross Unrealized Losses		(145)
Fair Value		22,619
Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Fair Value	9,968	3,636
Corporate bonds | Short-Term Marketable Investments
Debt Securities, Available-for-sale [Line Items]
Cost	10,056	3,658
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(88)	(22)
Fair Value	$ 9,968	$ 3,636

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