Fair value of financial instruments (Tables)

12 Months Ended

Dec. 31, 2023

Fair Value Disclosures [Abstract]

Summary of Fair Values of Financial Instruments Measured on a Recurring Basis

The fair values of the financial instruments we measure at fair value on a recurring basis are as follows (in thousands):

	December 31, 2023
	Level 1		Level 2		Level 3		Total
Cash equivalents:
Money market funds	$	1,032,675	$	—	$	—	$	1,032,675
Commercial paper	—		106,268		—		106,268
Certificates of deposit	—		1,551		—		1,551
Corporate bonds	—		859		—		859
Marketable securities:
Corporate bonds	—		427,957		—		427,957
Commercial paper	—		201,145		—		201,145
U.S. treasury securities	336,356		—		—		336,356
Certificates of deposit	—		132,457		—		132,457
Non-U.S. government and supranational bonds	—		8,983		—		8,983
U.S. agency bonds	—		42,250		—		42,250
Prepaid expenses and other current assets:
Certificates of deposit	—		2,542		—		2,542
Restricted cash:
Certificates of deposit	$	—	$	4,054	$	—	$	4,054

	December 31, 2022
	Level 1		Level 2		Level 3		Total
Cash equivalents:
Money market funds	$	1,017,191	$	—	$	—	$	1,017,191
Commercial paper	—		111,975		—		111,975
U.S. treasury securities	5,990		—		—		5,990
Corporate bonds	—		1,542		—		1,542
Marketable securities:
Corporate bonds	—		363,075		—		363,075
Commercial paper	—		241,192		—		241,192
U.S. treasury securities	242,916		—		—		242,916
Certificates of deposit	—		158,246		—		158,246
Municipal securities	—		27,449		—		27,449
Non-U.S. government and supranational bonds	—		22,599		—		22,599
U.S. agency bonds	—		31,687		—		31,687
Prepaid expenses and other current assets:
Certificates of deposit	—		1,067		—		1,067
Restricted cash:
Certificates of deposit	$	—	$	5,530	$	—	$	5,530