Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2022

Fair Value Disclosures [Abstract]

Schedule of Assets and Liabilities Measured at Fair Value

Assets and liabilities measured at fair value at each balance sheet date are as follows (in thousands):

	December 31, 2022
	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents:
Money market funds	$	105,340	$	—	$	—	$	105,340
U.S. government treasuries	43,781		—		—		43,781
Commercial paper	—		9,948		—		9,948
Short-term marketable securities:
U.S. government treasuries	1,003,504		—		—		1,003,504
U.S. government agency securities	—		16,861		—		16,861
Corporate debt securities	—		54,215		—		54,215
Commercial paper	—		43,591		—		43,591
Total	$	1,152,625	$	124,615	$	—	$	1,277,240

	December 31, 2021
	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents
Money market funds	$	265,294	$	—	$	—	$	265,294
Short-term marketable securities:
U.S. government treasuries	450,436		—		—		450,436
Corporate debt securities	—		70,009		—		70,009
Commercial paper	—		51,485		—		51,485
Long-term marketable securities:
U.S. government treasuries	410,147		—		—		410,147
Corporate debt securities	—		15,302		—		15,302
Total	$	1,125,877	$	136,796	$	—	$	1,262,673
Liabilities:
Foreign currency derivative contracts	$	—	$	111	$	—	$	111
Total	$	—	$	111	$	—	$	111