Balance Sheet Components - Schedule of Other Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Other Assets [Abstract]
Servicing fees and other receivables	$ 40,021	$ 40,490
Loan servicing assets (at fair value)	25,790	28,092
Other assets	20,090	18,589
Prepaid expenses	18,145	17,976
Notes receivable and residual certificates (at fair value)	11,642	14,847
Intangible assets, net	10,002	11,356
Line of credit receivable (at fair value)	8,305	0
Interest rate caps (at fair value)	5,123	5,958
Deposits	4,872	8,919
Total other assets	$ 143,990	$ 146,227