Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2024

Fair Value Disclosures [Abstract]

Schedule of Financial Assets Measured at Fair Value on a Recurring Basis

The following table sets forth our financial assets that are measured at fair value on a recurring basis:

		December 31, 2024
	Fair value hierarchy level	Cost or amortized cost		Gross unrealized gains		Gross unrealized losses		Fair value
		(in thousands)
Cash equivalents:
Money market funds	Level 1	$	497,461	$	—	$	—	$	497,461
U.S. treasury securities	Level 1	5,979		2		—		5,981
Corporate bonds	Level 2	1,066		2		—		1,068
Marketable securities:
U.S. treasury securities	Level 1	817,996		1,120		(396)		818,720
U.S. agency bonds	Level 2	117,965		15		(62)		117,918
Corporate bonds	Level 2	159,424		400		(86)		159,738
Commercial paper	Level 2	182,264		99		(22)		182,341
Total		$	1,782,155	$	1,638	$	(566)	$	1,783,227

		December 31, 2023
	Fair value hierarchy level	Cost or amortized cost		Gross unrealized gains		Gross unrealized losses		Fair value
		(in thousands)
Cash equivalents:
Money market funds	Level 1	$	345,555	$	—	$	—	$	345,555
Commercial paper	Level 2	9,994		—		(9)		9,985
Marketable securities:
U.S. treasury securities	Level 1	426,734		697		(188)		427,243
U.S. agency bonds	Level 2	77,535		13		(34)		77,514
Non-U.S. government securities	Level 2	21,723		10		(27)		21,706
Corporate bonds	Level 2	94,725		310		(81)		94,954
Certificates of deposit	Level 2	2,810		—		(1)		2,809
Commercial paper	Level 2	187,596		148		(24)		187,720
Total		$	1,166,672	$	1,178	$	(364)	$	1,167,486