2. Finance Receivables (Details-Allowance for finance credit losses) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Finance Receivables
Balance at beginning of period	$ 95,578	$ 75,603
Provision for credit losses on finance receivables	47,167	44,197
Charge-offs	(50,299)	(45,933)
Recoveries	6,809	6,000
Balance at end of period	$ 99,255	$ 79,867