(12) Fair Value Measurements (Details - Delinquency status) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Past Due [Line Items]
Initial Principal	$ 2,701,184	$ 1,972,699
Financial Asset, Not Past Due [Member]
Financing Receivable, Past Due [Line Items]
Initial Principal	2,375,271	1,787,641
Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Initial Principal	184,968	115,924
Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Initial Principal	72,390	38,999
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Initial Principal	29,048	11,564
Repossessed Vehicles [Member] [Default Label]
Financing Receivable, Past Due [Line Items]
Initial Principal	$ 39,507	$ 18,571