2. Finance Receivables (Details-Delinquency status) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Delinquency Status
Current	$ 1,948,923	$ 1,836,267
Finance receivables	2,102,093	1,990,913
Financing Receivables, 30 to 59 Days Past Due [Member]
Delinquency Status
Finance receivables	89,123	70,036
Financing Receivables, 60 to 89 Days Past Due [Member]
Delinquency Status
Finance receivables	32,816	41,136
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Delinquency Status
Finance receivables	$ 31,231	$ 43,474