Revenue - Schedule of Disaggregation of Revenue by Type of Service (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Disaggregation of Revenue [Line Items]
Revenue from fees, net	$ 167,590	$ 146,755	$ 436,190	$ 407,585
Platform and referral fees, net
Disaggregation of Revenue [Line Items]
Revenue from fees, net	134,199	112,437	336,653	295,859
Servicing and other fees, net
Disaggregation of Revenue [Line Items]
Revenue from fees, net	$ 33,391	$ 34,318	$ 99,537	$ 111,726