Revenue and Deferred Revenue - Summary of Disaggregated Revenue by Sales Channel (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Disaggregation Of Revenue [Line Items]
Revenue	$ 102,298	$ 88,265
Self-serve Revenue
Disaggregation Of Revenue [Line Items]
Revenue	71,112	63,107
Enterprise Revenue
Disaggregation Of Revenue [Line Items]
Revenue	$ 31,186	$ 25,158

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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+ Details