Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Revenue from fees, net	$ 313,982	$ 116,170
Platform and referral fees, net
Disaggregation of Revenue [Line Items]
Revenue from fees, net	271,812	106,953
Servicing and other fees, net
Disaggregation of Revenue [Line Items]
Revenue from fees, net	$ 42,170	$ 9,217

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