10. Fair Value Measurements (Details - Reconciliation of Finance Receivables) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Fair Value Disclosures [Abstract]
Balance at beginning of period	$ 209,847	$ 0	$ 0	$ 0
Finance receivables at fair value acquired during period	218,001	0	430,611	0
Payments received on finance receivables at fair value	(10,331)	0	(12,973)	0
Net interest income accretion on fair value receivables	(4,622)	0	(4,743)	0
Mark to fair value	0	0	0	0
Balance at end of period	$ 412,895	$ 0	$ 412,895	$ 0