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Revenue recognition - Summary of Deferred Revenue Balances by Reportable Segment (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Total deferred revenue	$ 302,319	$ 282,414	$ 278,279
Enterprise
Disaggregation of Revenue [Line Items]
Total deferred revenue	244,713	220,127	219,030
Consumer
Disaggregation of Revenue [Line Items]
Total deferred revenue	$ 57,606	$ 62,287	$ 59,249

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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