(12) Fair Value Measurements (Details - Delinquency status) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable, Past Due [Line Items]
Finance receivables measured at fair value current	$ 1,787,641	$ 1,505,486
Finance receivables measured at fair value	1,972,699	1,668,076
Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Finance receivables measured at fair value	115,924	96,296
Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Finance receivables measured at fair value	38,999	36,436
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Finance receivables measured at fair value	11,564	9,607
Repossessed Vehicles [Member]
Financing Receivable, Past Due [Line Items]
Finance receivables measured at fair value	$ 18,571	$ 20,251