Consolidated balance sheet components - Schedule of Cash, Cash Equivalents, and Marketable Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents, Amortized Costs	$ 272,364	$ 305,564	$ 323,227
Cash and cash equivalents, Fair Value	272,364	305,564
Marketable securities, Unrealized Gains	3	76
Marketable securities, Unrealized Losses	(19)	0
Total cash, cash equivalents, and marketable securities, Amortized Cost	420,939	476,860
Total cash, cash equivalents, and marketable securities, Fair Value	420,923	476,936
Unrealized loss position, fair value	127,651	0
Cash
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents, Amortized Costs	37,683	38,872
Cash and cash equivalents, Fair Value	37,683	38,872
Money market funds
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents, Amortized Costs	234,681	266,692
Cash and cash equivalents, Fair Value	234,681	266,692
U.S. government securities
Cash and Cash Equivalents [Line Items]
Marketable securities, Amortized Cost	148,575	171,296
Marketable securities, Unrealized Gains	3	76
Marketable securities, Unrealized Losses	(19)	0
Marketable securities, Fair Value	148,559	171,372
Unrealized loss position, fair value	$ 127,651	$ 0