2. Finance Receivables (Details-Delinquency status) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Delinquency Status
Current	$ 2,115,708	$ 2,053,759
Total financed receivables	2,310,103	2,266,619
Financing Receivables, 31 to 60 Days Past Due [Member]
Delinquency Status
Finance receivables	121,354	116,073
Financing Receivables, 61 to 90 Days Past Due [Member]
Delinquency Status
Finance receivables	49,094	52,404
Financing Receivables, Equal to Greater than 91 Days Past Due [Member]
Delinquency Status
Finance receivables	$ 23,947	$ 44,383