Interest Income and Interest Expense (Details - Interest expense) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Debt Instrument [Line Items]
Total interest expense	$ 35,706	$ 18,771	$ 68,465	$ 35,171
Securitization Trust Debt [Member]
Debt Instrument [Line Items]
Total interest expense	29,171	15,745	55,524	29,273
Warehouse Lines Of Credit [Member]
Debt Instrument [Line Items]
Total interest expense	5,008	1,386	9,856	2,544
Residual interest financing [Member]
Debt Instrument [Line Items]
Total interest expense	1,050	1,050	2,100	2,144
Subordinated renewable notes [Member]
Debt Instrument [Line Items]
Total interest expense	$ 477	$ 590	$ 985	$ 1,210