(9) Fair Value Measurements (Details - Level 3 Fair Value Measurements) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Receivables, Fair Value Disclosure	$ 1,903,857	$ 1,749,098	$ 1,533,723	$ 1,523,726
Discount Rate on Finance Receivables	9.9% - 11.3%	10.6% - 11.3%
Cumulative Net Losses (Percent) on Finance Receivables	10.0% - 18.4%	10.00% - 18.4%
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Receivables, Fair Value Disclosure	$ 1,903,857	$ 1,749,098