Consolidated balance sheet components - Narrative (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024 USD ($) security	Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($) security	Jun. 30, 2023 USD ($)	Dec. 31, 2023 USD ($) security	Aug. 24, 2021 USD ($)
Acquired Finite-Lived Intangible Assets [Line Items]
Realized gains and losses reclassified from accumulated other comprehensive loss to other income (expense), net	$ 0	$ 0	$ 0	$ 0
Number of continuous unrealized loss position for twelve months or longer | security	0		0		0
Depreciation	$ 800	800	$ 1,500	1,600
Amortization of capitalized software	5,000	4,300	9,800	8,200
Amortization of intangible assets	1,000	$ 1,000	1,900	$ 2,100
Goodwill	$ 12,646		$ 12,646		$ 12,646
CorpU
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill						$ 12,600