Revenue - Disaggregation (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Revenue	$ 187,763	$ 216,905
Subscription revenue
Disaggregation of Revenue [Line Items]
Revenue	177,435	208,796
Virtual currency revenue
Disaggregation of Revenue [Line Items]
Revenue	7,333	4,885
Advertising revenue
Disaggregation of Revenue [Line Items]
Revenue	$ 2,995	$ 3,224

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details