Consolidated balance sheet components - Schedule of Cash, Cash Equivalents, and Marketable Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Cash and Cash Equivalents [Line Items]
Amortized Cost	$ 358,607	$ 354,339
Unrealized Gains	137	97
Unrealized Losses	0	0
Fair Value	358,744	354,436
Fair Value	108	4,898
U.S. government securities
Cash and Cash Equivalents [Line Items]
Unrealized Losses	0	0
Fair Value	108	4,898
Cash and cash equivalents:
Cash and Cash Equivalents [Line Items]
Amortized Cost	231,485	190,592
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Value	231,485	190,592
Cash and cash equivalents: | Cash
Cash and Cash Equivalents [Line Items]
Amortized Cost	104,166	42,326
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Value	104,166	42,326
Cash and cash equivalents: | Money market funds
Cash and Cash Equivalents [Line Items]
Amortized Cost	123,314	136,771
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Value	123,314	136,771
Cash and cash equivalents: | Time deposits
Cash and Cash Equivalents [Line Items]
Amortized Cost	4,005	9,809
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Value	4,005	9,809
Cash and cash equivalents: | U.S. government securities
Cash and Cash Equivalents [Line Items]
Amortized Cost		1,686
Unrealized Gains		0
Unrealized Losses		0
Fair Value		1,686
Marketable securities: | U.S. government securities
Cash and Cash Equivalents [Line Items]
Amortized Cost	127,122	163,747
Unrealized Gains	137	97
Unrealized Losses	0	0
Fair Value	$ 127,259	$ 163,844