Consolidated balance sheet components - Summary of Intangible Assets Acquired through Business Combination (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross	$ 15,100	$ 15,100
Accumulated Amortization	(8,923)	(5,769)
Intangible Assets, Net	$ 6,177	$ 9,331
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Useful Lives	6 years	6 years
Intangible Assets, Gross	$ 5,500	$ 5,500
Accumulated Amortization	(1,927)	(1,239)
Intangible Assets, Net	$ 3,573	$ 4,261
Vendor relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Useful Lives	3 years	3 years
Intangible Assets, Gross	$ 4,500	$ 4,500
Accumulated Amortization	(3,153)	(2,028)
Intangible Assets, Net	$ 1,347	$ 2,472
Developed technology
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Useful Lives	3 years	3 years
Intangible Assets, Gross	$ 4,200	$ 4,200
Accumulated Amortization	(2,943)	(1,893)
Intangible Assets, Net	$ 1,257	$ 2,307
Tradename
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Useful Lives	2 years	2 years
Intangible Assets, Gross	$ 900	$ 900
Accumulated Amortization	(900)	(609)
Intangible Assets, Net	$ 0	$ 291