(9) Fair Value Measurements (Details - Reconciliation of Finance Receivables) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Fair Value Disclosures [Abstract]
Balance at beginning of period	$ 1,523,726	$ 1,444,038
Finance receivables at fair value acquired during period	205,459	265,282
Payments received on finance receivables at fair value	(156,020)	(109,558)
Net interest income accretion on fair value receivables	(35,025)	(29,715)
Mark to fair value	(4,417)	(10,350)
Balance at end of period	$ 1,533,723	$ 1,559,697