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Consolidated balance sheet components - Narrative (Details) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 USD ($) security | Sep. 30, 2021 USD ($) | Sep. 30, 2022 USD ($) security | Sep. 30, 2021 USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |  |  |
Number of continuous unrealized loss position for twelve months or longer | security | 0 |  | 0 |
Depreciation | $ 1.1 | $ 1.1 | $ 3.4 | $ 3.3
Amortization of capitalized software | $ 3.3 | $ 2.5 | $ 9.0 | $ 6.7

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