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Equity-based Compensation Plans - Schedule of Equity-based Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Equity-based compensation expense	$ 25,536	$ 3,594	$ 824
Cost of Revenue
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Equity-based compensation expense	2,809	181	54
Sales and Marketing
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Equity-based compensation expense	6,544	1,384	425
Product Development
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Equity-based compensation expense	4,723	532	167
General and Administrative
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Equity-based compensation expense	$ 11,460	$ 1,497	$ 178

X

- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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